# Blue Whale Trees

> A small nursery in the United States growing rare, hardy native trees and shrubs from seed collected off proven parent trees: uncommon oaks, hickories, magnolias, chestnuts and understory shrubs, sold as saplings, acorns, nuts and seed. Everything linked below is Markdown; the same pages exist as HTML at the address without index.html.md.

Every plant is seed-grown, not grafted, so each one is genetically distinct. The catalog lists 68 species in 6 groups; prices are being added, and every species can be requested by email, with a waitlist on each plant page for plants not yet priced. Live plants ship February to May and October to November. The next window opens October 1, 2026. Local pickup is offered. Payment is by card at checkout; there are no returns of shipped plants or seed, and orders can be cancelled for a full refund before they ship. Contact: captain@bluewhaletrees.com.

How to read the plant pages: each has a Facts list (type; mature height in feet; USDA hardiness zones, the coldest zone the plant survives, from 2 coldest to 10 warmest; the sun and soil moisture it takes; growth rate; traits; the natural communities it grows in; what it is sold as), an Availability list with the sizes and prices where set, the description, a How to grow guide, and links to the site's tools for that species. Prices on a page are current; a plant marked not yet priced can be requested by email. "Dormant season" means late fall to early spring, when live plants are leafless and can be shipped safely. The articles are the nursery's own writing and end with a Sources list of the references behind them.

The HTML pages carry schema.org structured data: plant pages a BreadcrumbList and, once priced, a Product with an Offer per size (price, availability, shipping and return terms); articles a BlogPosting with dates and images; the site an Organization. The catalog is also served as JSON at https://bluewhaletrees.com/api/plants (every species with zones, size, sun, moisture, traits and photo URLs), and the catalog's Markdown page accepts the shop's filters as query parameters.

## Plants

- [Bear Oak (Scrub Oak) (Quercus ilicifolia)](https://bluewhaletrees.com/plants/bear-oak/index.html.md): Rare & Uncommon Oaks. The scrub oak of pine barrens and ridgetops: tough, fire-adapted and a powerhouse host for moths and butterflies. Shrub, zones 4 to 8, 6 to 20 ft, sold as saplings and acorns.
- [Delta Post Oak (Quercus similis)](https://bluewhaletrees.com/plants/delta-post-oak/index.html.md): Rare & Uncommon Oaks. A post oak that tolerates wet feet, from the bottomlands of the lower Mississippi valley. Large tree, zones 7 to 9, 60 to 80 ft, sold as saplings and acorns.
- [Dwarf Chinquapin Oak (Quercus prinoides)](https://bluewhaletrees.com/plants/dwarf-chinquapin-oak/index.html.md): Rare & Uncommon Oaks. A true shrub oak that starts dropping sweet, low-tannin acorns within a few years of planting. Shrub, zones 4 to 8, 6 to 15 ft, sold as saplings and acorns.
- [Oglethorpe Oak (Quercus oglethorpensis)](https://bluewhaletrees.com/plants/oglethorpe-oak/index.html.md): Rare & Uncommon Oaks. One of the rarest oaks in North America, with willow-like unlobed leaves and white-oak toughness. Large tree, zones 6 to 9, 50 to 80 ft, sold as saplings and acorns.
- [Overcup Oak (Quercus lyrata)](https://bluewhaletrees.com/plants/overcup-oak/index.html.md): Rare & Uncommon Oaks. A bottomland white oak that stands in floodwater for months and then takes a dry summer in stride, with acorns almost swallowed by their cups. Large tree, zones 5 to 9, 40 to 60 ft, sold as acorns and saplings.
- [Sand Post Oak (Quercus margaretta)](https://bluewhaletrees.com/plants/sand-post-oak/index.html.md): Rare & Uncommon Oaks. A compact post oak of deep coastal-plain sands, built for drought and heat. Small tree, zones 6 to 9, 15 to 40 ft, sold as saplings and acorns.
- [American Holly, select line (Ilex opaca)](https://bluewhaletrees.com/plants/american-holly/index.html.md): Superior Specimen Lines. Broadleaf evergreen screening and winter berries, from a specimen chosen for dense foliage and heavy fruit. Medium tree, zones 5 to 9, 20 to 50 ft, sold as saplings.
- [Cherrybark Oak, Wye Island line (Quercus pagoda)](https://bluewhaletrees.com/plants/cherrybark-oak/index.html.md): Superior Specimen Lines. Acorns and seedlings from a single outstanding cherrybark oak on Wye Island, Maryland: tall, straight and fast. Large tree, zones 6 to 9, 80 to 120 ft, sold as saplings and acorns.
- [Swamp Chestnut Oak, select line (Quercus michauxii)](https://bluewhaletrees.com/plants/swamp-chestnut-oak/index.html.md): Superior Specimen Lines. Huge, sweet acorns and clean chestnut-like foliage, collected from a superior parent tree. Large tree, zones 5 to 9, 60 to 90 ft, sold as saplings and acorns.
- [Allegheny Serviceberry (Amelanchier laevis)](https://bluewhaletrees.com/plants/allegheny-serviceberry/index.html.md): Uncommon Yard Trees. Bronze-purple new leaves under white flowers, and the sweetest fruit of the serviceberries. Small tree, zones 4 to 8, 15 to 25 ft, sold as saplings.
- [American Basswood (Linden) (Tilia americana)](https://bluewhaletrees.com/plants/american-basswood/index.html.md): Uncommon Yard Trees. The bee tree: a broad shade tree whose fragrant June flowers hum with pollinators. Large tree, zones 3 to 8, 60 to 90 ft, sold as saplings and seed.
- [American Hornbeam (Musclewood) (Carpinus caroliniana)](https://bluewhaletrees.com/plants/american-hornbeam/index.html.md): Uncommon Yard Trees. Smooth, sinewy gray trunks, orange-red fall color and complete comfort in shade and damp soil. Small tree, zones 3 to 9, 20 to 35 ft, sold as saplings.
- [American Mountain Ash (Sorbus americana)](https://bluewhaletrees.com/plants/american-mountain-ash/index.html.md): Uncommon Yard Trees. Flat white flower clusters, orange-red berries and brilliant fall color for cold, cool-summer regions. Small tree, zones 2 to 6, 15 to 30 ft, sold as saplings and seed.
- [American Smoketree (Cotinus obovatus)](https://bluewhaletrees.com/plants/american-smoketree/index.html.md): Uncommon Yard Trees. Perhaps the best fall color of any native tree, on a small, drought-proof limestone specialist. Small tree, zones 4 to 8, 20 to 30 ft, sold as saplings and seed.
- [Bald Cypress (Taxodium distichum)](https://bluewhaletrees.com/plants/bald-cypress/index.html.md): Uncommon Yard Trees. The swamp conifer that also thrives on dry lawns, with feathery foliage that turns rust-orange in fall. Large tree, zones 4 to 10, 50 to 80 ft, sold as saplings and seed.
- [Black Gum (Tupelo) (Nyssa sylvatica)](https://bluewhaletrees.com/plants/black-gum/index.html.md): Uncommon Yard Trees. Blazing scarlet fall color, superb bee forage, and one of the longest-lived hardwoods in the East. Large tree, zones 4 to 9, 40 to 70 ft, sold as saplings and seed.
- [Black Locust (Robinia pseudoacacia)](https://bluewhaletrees.com/plants/black-locust/index.html.md): Uncommon Yard Trees. Fragrant white flower clusters in May, the source of the lightest and most prized honey in the East. Large tree, zones 4 to 8, 40 to 70 ft, sold as saplings and seed.
- [Blue Ash (Fraxinus quadrangulata)](https://bluewhaletrees.com/plants/blue-ash/index.html.md): Uncommon Yard Trees. The one ash worth planting: square twigs, limestone-loving roots and real tolerance of emerald ash borer. Large tree, zones 4 to 7, 50 to 70 ft, sold as saplings and seed.
- [Carolina Silverbell (Halesia tetraptera)](https://bluewhaletrees.com/plants/carolina-silverbell/index.html.md): Uncommon Yard Trees. Rows of white bell flowers hang beneath the branches in April on this graceful Appalachian understory tree. Medium tree, zones 4 to 8, 30 to 40 ft, sold as saplings and seed.
- [Cucumber Magnolia (Magnolia acuminata)](https://bluewhaletrees.com/plants/cucumber-magnolia/index.html.md): Uncommon Yard Trees. The hardiest and largest native magnolia, a fast-growing shade tree with cucumber-shaped fruit that ripens to red. Large tree, zones 4 to 8, 50 to 80 ft, sold as saplings and seed.
- [Downy Serviceberry (Amelanchier arborea)](https://bluewhaletrees.com/plants/downy-serviceberry/index.html.md): Uncommon Yard Trees. First to bloom in the woods, first fruit of summer, and orange-red fall color; a four-season small tree. Small tree, zones 4 to 9, 15 to 25 ft, sold as saplings.
- [Eastern Redbud (Cercis canadensis)](https://bluewhaletrees.com/plants/eastern-redbud/index.html.md): Uncommon Yard Trees. Magenta flowers on bare branches in early spring, heart-shaped leaves and a graceful spreading crown. Small tree, zones 4 to 9, 20 to 30 ft, sold as saplings and seed.
- [Flowering Dogwood (Cornus florida)](https://bluewhaletrees.com/plants/flowering-dogwood/index.html.md): Uncommon Yard Trees. The classic spring understory tree: white bracts in April, red berries and burgundy leaves in fall. Small tree, zones 5 to 9, 15 to 30 ft, sold as saplings.
- [Hop Hornbeam (Ostrya virginiana)](https://bluewhaletrees.com/plants/hop-hornbeam/index.html.md): Uncommon Yard Trees. A tough, shade-tolerant tree of dry upland woods with shreddy bark and hop-like seed clusters. Medium tree, zones 3 to 9, 25 to 40 ft, sold as saplings.
- [Kentucky Coffeetree (Gymnocladus dioicus)](https://bluewhaletrees.com/plants/kentucky-coffeetree/index.html.md): Uncommon Yard Trees. Bold, coarse and nearly indestructible: a rare native shade tree for tough sites and cold climates. Large tree, zones 3 to 8, 60 to 80 ft, sold as saplings and seed.
- [Northern Catalpa (Catalpa speciosa)](https://bluewhaletrees.com/plants/northern-catalpa/index.html.md): Uncommon Yard Trees. Orchid-like white flowers in June, giant heart-shaped leaves and a tolerance for almost any soil. Large tree, zones 4 to 8, 40 to 70 ft, sold as saplings and seed.
- [Sourwood (Oxydendrum arboreum)](https://bluewhaletrees.com/plants/sourwood/index.html.md): Uncommon Yard Trees. Lily-of-the-valley flowers in July, the famous sourwood honey, and fall color that rivals any maple. Medium tree, zones 5 to 9, 25 to 50 ft, sold as saplings and seed.
- [Sweetbay Magnolia (Magnolia virginiana)](https://bluewhaletrees.com/plants/sweetbay-magnolia/index.html.md): Uncommon Yard Trees. Lemon-scented white flowers from May into summer, silver-backed leaves, and a love of wet ground. Small tree, zones 5 to 10, 15 to 35 ft, sold as saplings and seed.
- [Washington Hawthorn (Crataegus phaenopyrum)](https://bluewhaletrees.com/plants/washington-hawthorn/index.html.md): Uncommon Yard Trees. White June flowers, glossy red fruit that hangs into winter, and a thorny crown that shelters nesting birds. Small tree, zones 4 to 8, 20 to 30 ft, sold as saplings.
- [White Fringetree (Chionanthus virginicus)](https://bluewhaletrees.com/plants/white-fringetree/index.html.md): Uncommon Yard Trees. Clouds of fragrant white fringe in May, then blue fruit for the birds, on a small tree for any yard. Small tree, zones 4 to 9, 12 to 20 ft, sold as saplings and seed.
- [Yellowwood (Cladrastis kentukea)](https://bluewhaletrees.com/plants/yellowwood/index.html.md): Uncommon Yard Trees. Cascading wisteria-like white flowers in late spring on a smooth, gray-barked tree that few nurseries grow. Medium tree, zones 4 to 8, 30 to 50 ft, sold as saplings and seed.
- [American Beautyberry (Callicarpa americana)](https://bluewhaletrees.com/plants/american-beautyberry/index.html.md): Native Shrubs. Glossy violet berries ring every stem in fall and feed mockingbirds and thrushes into winter; a fast, easy native shrub for sun or light shade. Shrub, zones 6 to 10, 3 to 6 ft, sold as saplings and seed.
- [Black Chokeberry (Aronia melanocarpa)](https://bluewhaletrees.com/plants/black-chokeberry/index.html.md): Native Shrubs. White spring flowers, glossy black antioxidant-rich berries and some of the best red fall color of any shrub. Shrub, zones 3 to 8, 3 to 6 ft, sold as saplings.
- [Black Elderberry (Sambucus canadensis)](https://bluewhaletrees.com/plants/black-elderberry/index.html.md): Native Shrubs. Broad white flower plates in June, purple-black berries in August, and a magnet for dozens of bird species. Shrub, zones 3 to 9, 6 to 12 ft, sold as saplings.
- [Black Huckleberry (Gaylussacia baccata)](https://bluewhaletrees.com/plants/black-huckleberry/index.html.md): Native Shrubs. A low, colony-forming shrub of dry acid woods with sweet, seedy black berries and crimson fall leaves. Shrub, zones 3 to 7, 1 to 3 ft, sold as saplings.
- [Blackhaw Viburnum (Viburnum prunifolium)](https://bluewhaletrees.com/plants/blackhaw/index.html.md): Native Shrubs. A tough, tree-like viburnum with white spring flowers, purple-red fall color and sweet blue fruit. Shrub, zones 3 to 9, 12 to 15 ft, sold as saplings.
- [Bladdernut (Staphylea trifolia)](https://bluewhaletrees.com/plants/bladdernut/index.html.md): Native Shrubs. Drooping white bell flowers in May and papery inflated seed pods that rattle in the fall wind. Shrub, zones 4 to 8, 8 to 15 ft, sold as saplings and seed.
- [Bristly Locust (Rose Locust) (Robinia hispida)](https://bluewhaletrees.com/plants/rose-locust/index.html.md): Native Shrubs. Rose-pink wisteria-like flowers in May on a suckering, nitrogen-fixing shrub for dry banks. Shrub, zones 5 to 8, 3 to 8 ft, sold as saplings.
- [Carolina Buckthorn (Frangula caroliniana)](https://bluewhaletrees.com/plants/carolina-buckthorn/index.html.md): Native Shrubs. Glossy leaves, red-to-black berries and yellow fall color on a native buckthorn that is nothing like the invasive ones. Shrub, zones 5 to 9, 10 to 20 ft, sold as saplings and seed.
- [Eastern Leatherwood (Dirca palustris)](https://bluewhaletrees.com/plants/eastern-leatherwood/index.html.md): Native Shrubs. Tiny yellow flowers in the first week of spring, on a rare, slow shade shrub with bark you can tie in knots. Shrub, zones 4 to 9, 3 to 6 ft, sold as saplings.
- [Indigobush (False Indigo) (Amorpha fruticosa)](https://bluewhaletrees.com/plants/indigobush/index.html.md): Native Shrubs. Purple flower spikes with orange stamens in June, on a nitrogen-fixing shrub for streambanks and hot dry edges. Shrub, zones 4 to 9, 6 to 12 ft, sold as saplings and seed.
- [Leadplant (Amorpha canescens)](https://bluewhaletrees.com/plants/leadplant/index.html.md): Native Shrubs. A prairie sub-shrub with silver leaves and purple summer spikes, rooted deep against drought. Shrub, zones 2 to 8, 1 to 3 ft, sold as saplings and seed.
- [Mountain Camellia (Mountain Stewartia) (Stewartia ovata)](https://bluewhaletrees.com/plants/mountain-camellia/index.html.md): Native Shrubs. Large white camellia-like flowers in July on a rare Appalachian small tree with orange-red fall color. Small tree, zones 5 to 8, 10 to 20 ft, sold as saplings and seed.
- [Mountain Laurel (Kalmia latifolia)](https://bluewhaletrees.com/plants/mountain-laurel/index.html.md): Native Shrubs. Native evergreen with clusters of origami-like pink and white flowers in June and twisted, sculptural trunks. Shrub, zones 4 to 9, 5 to 12 ft, sold as saplings.
- [Nannyberry (Viburnum lentago)](https://bluewhaletrees.com/plants/nannyberry/index.html.md): Native Shrubs. A big, adaptable viburnum with creamy flowers, edible blue-black fruit and wine-red fall color. Shrub, zones 2 to 8, 12 to 18 ft, sold as saplings.
- [Ninebark (Physocarpus opulifolius)](https://bluewhaletrees.com/plants/ninebark/index.html.md): Native Shrubs. Peeling bark, white flower balls in June, and a constitution that shrugs off drought, flood and cold. Shrub, zones 2 to 8, 5 to 10 ft, sold as saplings.
- [Red Elderberry (Sambucus racemosa)](https://bluewhaletrees.com/plants/red-elderberry/index.html.md): Native Shrubs. Cone-shaped white flowers in April and glowing red berries by June, the earliest berry crop for birds. Shrub, zones 3 to 7, 8 to 12 ft, sold as saplings.
- [Rosebay Rhododendron (Rhododendron maximum)](https://bluewhaletrees.com/plants/rosebay-rhododendron/index.html.md): Native Shrubs. The great evergreen rhododendron of Appalachian stream valleys, with pink-white trusses in July. Shrub, zones 3 to 7, 10 to 15 ft, sold as saplings.
- [Silky Dogwood (Cornus amomum)](https://bluewhaletrees.com/plants/silky-dogwood/index.html.md): Native Shrubs. Creamy flower clusters in June, porcelain-blue berries in September and purple-red winter stems for wet spots. Shrub, zones 4 to 8, 6 to 12 ft, sold as saplings.
- [Smooth Alder (Swamp Alder) (Alnus serrulata)](https://bluewhaletrees.com/plants/smooth-alder/index.html.md): Native Shrubs. A nitrogen-fixing streambank shrub that holds soil, feeds woodcock and grouse, and thrives in standing water. Shrub, zones 4 to 9, 10 to 20 ft, sold as saplings and seed.
- [Spicebush (Lindera benzoin)](https://bluewhaletrees.com/plants/spicebush/index.html.md): Native Shrubs. Yellow flowers in March, spicy-scented leaves, red berries for thrushes and the host plant of the spicebush swallowtail. Shrub, zones 4 to 9, 6 to 12 ft, sold as saplings.
- [Staghorn Sumac (Rhus typhina)](https://bluewhaletrees.com/plants/staghorn-sumac/index.html.md): Native Shrubs. Fuzzy antler-like branches, fiery orange-red fall color and red fruit cones that feed birds through the winter. Shrub, zones 3 to 8, 15 to 25 ft, sold as saplings.
- [Swamp Doghobble (Eubotrys racemosa)](https://bluewhaletrees.com/plants/swamp-doghobble/index.html.md): Native Shrubs. Arching sprays of white bell flowers in May on a deciduous heath shrub for wet, acid, shady ground. Shrub, zones 5 to 9, 4 to 10 ft, sold as saplings.
- [Sweet Pepperbush (Summersweet) (Clethra alnifolia)](https://bluewhaletrees.com/plants/sweet-pepperbush/index.html.md): Native Shrubs. Spires of intensely fragrant white flowers in August, when almost nothing else is blooming, and bees know it. Shrub, zones 4 to 9, 4 to 8 ft, sold as saplings.
- [Winterberry Holly (Ilex verticillata)](https://bluewhaletrees.com/plants/winterberry/index.html.md): Native Shrubs. Bare winter branches lined with scarlet berries, on a deciduous holly that loves wet ground. Shrub, zones 3 to 9, 6 to 12 ft, sold as saplings.
- [Witch Hazel (Hamamelis virginiana)](https://bluewhaletrees.com/plants/witch-hazel/index.html.md): Native Shrubs. The last flower of the year: ribbon-like yellow blooms in November as the golden leaves fall. Shrub, zones 3 to 8, 12 to 20 ft, sold as saplings and seed.
- [American Crabapple (Malus coronaria)](https://bluewhaletrees.com/plants/american-crabapple/index.html.md): Nut & Fruit Trees. Fragrant pink-white blossoms in May and hard green fruit that makes exceptional jelly. Small tree, zones 4 to 8, 15 to 30 ft, sold as saplings and seed.
- [American Hazelnut (Corylus americana)](https://bluewhaletrees.com/plants/american-hazelnut/index.html.md): Nut & Fruit Trees. Sweet native filberts in late summer on a dense, easy hedgerow shrub. Shrub, zones 4 to 9, 8 to 12 ft, sold as saplings and nuts.
- [American Persimmon (Diospyros virginiana)](https://bluewhaletrees.com/plants/american-persimmon/index.html.md): Nut & Fruit Trees. Sweet orange fruit after frost, blocky alligator bark and a tree that grows nearly anywhere. Medium tree, zones 4 to 9, 35 to 60 ft, sold as saplings and seed.
- [American Plum (Prunus americana)](https://bluewhaletrees.com/plants/american-plum/index.html.md): Nut & Fruit Trees. A thicket-forming wild plum with fragrant white spring bloom and tart red-yellow fruit for jelly and wildlife. Small tree, zones 3 to 8, 15 to 25 ft, sold as saplings and seed.
- [Beach Plum (Prunus maritima)](https://bluewhaletrees.com/plants/beach-plum/index.html.md): Nut & Fruit Trees. The dune plum of the Atlantic coast: salt-proof, drought-proof and covered in white bloom each May. Shrub, zones 3 to 8, 4 to 8 ft, sold as saplings and seed.
- [Black Walnut (Juglans nigra)](https://bluewhaletrees.com/plants/black-walnut/index.html.md): Nut & Fruit Trees. Rich, strong-flavored nuts and the most valuable timber in the East, on a fast-growing tree for big spaces. Large tree, zones 4 to 9, 70 to 100 ft, sold as saplings and nuts.
- [Northern Pecan (Carya illinoinensis)](https://bluewhaletrees.com/plants/pecan/index.html.md): Nut & Fruit Trees. Northern-adapted pecan from the upper reaches of its range, ripening thin-shelled nuts in short seasons. Large tree, zones 5 to 9, 70 to 100 ft, sold as saplings and nuts.
- [Pawpaw (Asimina triloba)](https://bluewhaletrees.com/plants/pawpaw/index.html.md): Nut & Fruit Trees. The largest native fruit in North America, custard-sweet and tropical, on an understory tree of rich bottomlands. Small tree, zones 5 to 9, 15 to 30 ft, sold as saplings and seed.
- [Red Mulberry (Morus rubra)](https://bluewhaletrees.com/plants/red-mulberry/index.html.md): Nut & Fruit Trees. The native mulberry, with big sandpapery leaves and long, sweet, dark fruit that birds and people fight over. Medium tree, zones 4 to 9, 35 to 50 ft, sold as saplings and seed.
- [Shagbark Hickory (Carya ovata)](https://bluewhaletrees.com/plants/shagbark-hickory/index.html.md): Nut & Fruit Trees. Peeling plated bark, golden fall color and the sweetest wild nut in the eastern forest. Large tree, zones 4 to 8, 60 to 90 ft, sold as saplings and nuts.
- [Allegheny Chinquapin (Castanea pumila)](https://bluewhaletrees.com/plants/allegheny-chinquapin/index.html.md): Chestnuts & Chinquapins. A shrubby native cousin of the American chestnut, the American chinquapin ripens one sweet nut per small bur and bears within a few years of planting. Small tree, zones 5 to 9, 10 to 25 ft, sold as saplings and nuts.
- [Chinese Chestnut (Castanea mollissima)](https://bluewhaletrees.com/plants/chinese-chestnut/index.html.md): Chestnuts & Chinquapins. Blight-resistant chestnuts for the home orchard: large sweet nuts on a spreading, drought-tolerant tree. Medium tree, zones 4 to 8, 40 to 60 ft, sold as saplings and nuts.

## Articles

- [Chinese chestnut: size, growth rate, bark, and how it differs from the American chestnut](https://bluewhaletrees.com/articles/chinese-chestnut/index.html.md): How big a Chinese chestnut gets and how fast, what its bark, leaves and nuts look like, and the differences from the American chestnut it stands in for.
- [Epicormic buds: the sprouts that appear after damage or new sunlight](https://bluewhaletrees.com/articles/epicormic-buds/index.html.md): Trees carry sleeping buds in their bark for decades. A broken top, hard pruning or sudden sun wakes them. What the sprouts mean and what to do with them.
- [Fungus on a tree is not a death sentence](https://bluewhaletrees.com/articles/fungus-is-not-a-death-sentence/index.html.md): Hollow trunks, torn-out limbs and shelf fungi look like the end. Trees can live for decades or centuries in that state, and here is how to tell when it matters.
- [How old is that tree, really?](https://bluewhaletrees.com/articles/how-old-is-that-tree/index.html.md): Forest trees live far longer than the lifespans quoted online, and open-grown trees are usually younger than they look. Both errors share a cause.
- [How trees defend themselves](https://bluewhaletrees.com/articles/how-trees-defend-themselves/index.html.md): Trees cannot run, so they fight with resin, thorns, tannin, latex, thick bark and stump sprouts. A tour of the defenses, with the debated parts flagged.
- [Invasive vines and shrubs are what is killing your woods](https://bluewhaletrees.com/articles/invasive-vines-and-shrubs/index.html.md): Vines and shrubs topple canopy trees and stop a forest from regenerating. Free the trees first, then the shrubs, then keep after the seedlings for years.
- [Leaf litter, not wood chips, under the canopy](https://bluewhaletrees.com/articles/leaf-litter-not-wood-chips/index.html.md): A forest floor of leaves, twigs and fruit feeds a tree and holds water in ways a wood-chip bed cannot. How to build one in a yard, and where chips still belong.
- [Marcescence: why young beeches and oaks keep their dead leaves all winter](https://bluewhaletrees.com/articles/marcescence/index.html.md): The copper-brown leaves rattling on beech saplings and young oaks in January are marcescence. What it is, why it might happen and why it needs no action.
- [Multistem or single stem? Sometimes the trunk is hiding the answer](https://bluewhaletrees.com/articles/multistem-or-single-stem/index.html.md): A trunk that looks like one stem can be two or three that grew together with bark trapped inside. How clumps form, why fused trunks fail, and what to do early.
- [Protecting forestland for good](https://bluewhaletrees.com/articles/protecting-forestland-for-good/index.html.md): Parks, easements, deed restrictions, zoning and a family plan: the tools that keep a woods a woods after you are gone, and what to ask a land trust.
- [Protecting young trees from voles, rabbits, deer and squirrels](https://bluewhaletrees.com/articles/protecting-trees-from-animals/index.html.md): Voles, rabbits, deer and squirrels each leave a signature on a young tree. Each has a fix: hardware cloth, cages, pulled-back mulch and guards removed in time.
- [Pruning at the branch collar, and when to make the cut](https://bluewhaletrees.com/articles/pruning-at-the-branch-collar/index.html.md): Where a pruning cut lands decides whether a tree can wall off the wound. How to find the collar, make three cuts instead of one, and choose the season.
- [Red oaks and white oaks, and where each belongs](https://bluewhaletrees.com/articles/red-oaks-and-white-oaks/index.html.md): How to tell the two oak groups apart, what the split means for acorns, disease and lifespan, and a site-by-site guide to our oaks and the common natives.
- [Sapsucker holes and the wasps that follow them](https://bluewhaletrees.com/articles/sapsucker-holes-and-wasp-damage/index.html.md): Neat rows of small holes weeping sap are the work of a sapsucker, not a borer. What the bird is doing, who else feeds at the holes, and when it matters.
- [Six trees not to plant near a house, and what to plant instead](https://bluewhaletrees.com/articles/trees-not-to-plant-near-a-house/index.html.md): White mulberry, lacebark elm, willow, silver maple, tuliptree and Callery pear each have a specific problem near a home. A native alternative for each one.
- [Ten planting mistakes that quietly kill trees](https://bluewhaletrees.com/articles/ten-planting-mistakes/index.html.md): Most trees that die in their first decade were doomed on planting day. Here are the mistakes we see most, and what to do instead.
- [The habitat around a tree is part of the tree](https://bluewhaletrees.com/articles/habitat-around-a-tree/index.html.md): Leaf litter, stick piles, an exposed root flare and uncompacted soil keep a tree alive for centuries. Nails, straps, fill and parked trucks quietly undo it.
- [Transplanting young trees: timing, water and protection](https://bluewhaletrees.com/articles/transplanting-young-trees/index.html.md): Move a tree while it is dormant, set the flare high, water deeply for two summers and cage it from day one. Small transplants outgrow big ones every time.
- [Wasp galls on oaks](https://bluewhaletrees.com/articles/wasp-galls-on-oaks/index.html.md): Oak apples, bullet galls, wool sower galls and woody twig knobs are all grown by the tree around a tiny wasp. They look like disease and almost never are.
- [What grows back when a field is left alone](https://bluewhaletrees.com/articles/old-field-succession/index.html.md): An abandoned field in the East goes from goldenrod to redcedar, sweetgum, tuliptree and black locust in a decade, and to oaks in a century. How to steer it.
- [What old growth actually looks like](https://bluewhaletrees.com/articles/what-old-growth-looks-like/index.html.md): Old growth is a structure, not an age: trees of every size, snags, rotting logs, pits and mounds, a broken canopy. How to recognize it and how to grow it back.
- [When oaks leaf out, and why two of them never agree](https://bluewhaletrees.com/articles/when-oaks-leaf-out/index.html.md): Leaf-out runs on winter chill, spring warmth and genetics, so two oaks of one species can differ by two weeks. Here is the order, the reasons and what to watch.
- [Why almost every tree height you read is too tall](https://bluewhaletrees.com/articles/tangent-vs-sine-tree-height/index.html.md): The common way to measure a tree assumes its top is directly above its trunk. On a broad hardwood it almost never is. Here is the honest method.
- [Why new leaves come out red](https://bluewhaletrees.com/articles/why-new-leaves-come-out-red/index.html.md): That bronze-red flush on spring oak and maple leaves is sunscreen, not stress. Here is what the pigment is doing and when to actually worry.
- [Why the range maps are wrong](https://bluewhaletrees.com/articles/range-maps-are-wrong/index.html.md): Most native range maps are hand-drawn 1970s outlines, copied ever since. Why they are coarse, the kinds of errors they carry, and what to trust instead.

## Tools

- [Tree finder](https://bluewhaletrees.com/tools/tree-finder/index.html.md): Filters the catalog by USDA zone, mature size, sun, soil moisture and what the plant should do. The page is a browser tool; agents get the same result from the catalog page below with its query parameters, or from the JSON feed.
- [Planting-site check](https://bluewhaletrees.com/tools/site-check/index.html.md): Takes a species and a described spot and returns thrive, struggle or fail with the reasons. Add the parameters to this address to get the verdict as Markdown: species (a plant id such as black-gum), zone (2 to 10), sun (full, part, shade), moisture (dry, average, wet).
- [Companion species](https://bluewhaletrees.com/tools/companions/index.html.md): For one species, the natives that share its natural communities and the plants that pair with it in a yard. Add ?species=<plant id> to this address for the list as Markdown.
- [Watering calculator](https://bluewhaletrees.com/tools/watering/index.html.md): How to water a newly planted tree, and the rule the calculator uses: about 10 gallons per inch of trunk caliper per week, less rain over the root zone. The calculator itself runs in the browser.
- [Growth estimator](https://bluewhaletrees.com/tools/growth/index.html.md): How the height and trunk-diameter projections are made, by species and site quality. The estimator itself runs in the browser.

## Ordering

- [Catalog](https://bluewhaletrees.com/shop/index.html.md): Every species in one table: botanical name, group, type, height, zones, sun, soil, what it is sold as and the current price. Filter with query parameters: size, sun, moisture, zone, want, as, q.
- [Rare & Uncommon Oaks](https://bluewhaletrees.com/shop/rare-oaks/index.html.md): Scrub oaks, coastal-plain post oaks and southern white oaks you will not find at a garden center. 6 species.
- [Superior Specimen Lines](https://bluewhaletrees.com/shop/specimens/index.html.md): Acorns and seedlings collected from named, proven parent trees. 3 species.
- [Uncommon Yard Trees](https://bluewhaletrees.com/shop/yard-trees/index.html.md): Native shade and flowering trees that deserve far more use than they get. 22 species.
- [Native Shrubs](https://bluewhaletrees.com/shop/shrubs/index.html.md): Understory and hedgerow shrubs for birds, pollinators and privacy. 25 species.
- [Nut & Fruit Trees](https://bluewhaletrees.com/shop/nuts-fruit/index.html.md): Pecan, hickory, walnut, pawpaw, persimmon and other native food trees. 10 species.
- [Chestnuts & Chinquapins](https://bluewhaletrees.com/shop/chestnuts/index.html.md): Native chinquapins and blight-resistant chestnuts grown from seed, for nuts, wildlife and the pleasure of a chestnut in the yard again. 2 species.
- [Habitat bundles](https://bluewhaletrees.com/bundles/index.html.md): Plants grouped for a purpose, such as the honey tree trio, with the plants in each.
- [Shipping and pickup](https://bluewhaletrees.com/shipping/index.html.md): Zones, rates, the months live plants ship, local pickup, and what to do when a box arrives.
- [Support and FAQ](https://bluewhaletrees.com/support/index.html.md): Shipping, sizes, ordering, acorn storage and the guarantee, as questions and answers.
- [Plant data (JSON)](https://bluewhaletrees.com/api/plants): Machine-readable list of every species with zones, size, sun, moisture, traits, what it is sold as, the lowest price and photo URLs.

## Optional

- [About the nursery](https://bluewhaletrees.com/about/index.html.md): What we believe about climate, genetics and rarity, and the plant groups we grow.
- [Terms of sale](https://bluewhaletrees.com/terms/index.html.md): Orders, payment, seasons, shipping, the guarantee and cancellations.
- [Privacy policy](https://bluewhaletrees.com/privacy/index.html.md): What is collected when you order or write, and why.
- [Photo credits](https://bluewhaletrees.com/credits/index.html.md): Sources and licenses of every species and article photograph.