# Prairie Crabapple (Malus ioensis)

> The wild crabapple of the Midwest prairies, whose pink buds open to fragrant blossoms in spring before waxy green apples ripen for jelly and wildlife.

Also called Iowa crabapple, western crabapple, prairie crab, Pyrus ioensis. Category: Nut & Fruit Trees. Grown from seed by Blue Whale Trees. Web version: https://bluewhaletrees.com/plants/prairie-crabapple/

![Prairie crabapple (Malus ioensis) pink buds and pale pink blossoms among toothed leaves](https://bluewhaletrees.com/img/plants/prairie-crabapple-h1610-800.jpg)
*Photo: Krzysztof Ziarnek, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File%3AMalus_ioensis_kz03.jpg)*

## Facts

- Type: Small tree
- Mature height: 20 to 30 ft
- USDA hardiness zones: 2 to 8
- Grows wild in: Stream banks, dry uplands, old fields and edges
- Native range: 17 states, north to Minnesota, south to Louisiana and west to South Dakota (Arkansas, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Missouri, Nebraska, New Jersey, Ohio, Oklahoma, South Dakota, Texas and Wisconsin)
- Sun: Full, Part
- Soil moisture: Average, Dry
- Growth rate: Medium
- Traits: Showy flowers, Wildlife value, Edible, Drought tolerant
- Sold as: Saplings, Seed

Heights and zones are typical ranges for the species in cultivation; local conditions and seed source shift them.

## Availability

Not yet priced online. Ask at captain@bluewhaletrees.com or leave an email on the web page to be told when it is listed.

## Notes

Prairie crabapple is the native crab of the upper Mississippi Valley and the eastern Great Plains. It grows as a small, spurred and often thorny tree, and its root suckers build thickets at woodland and prairie edges. Its leaves stay downy beneath, which sets it apart from the American and southern crabapples, and it flowers later than orchard apples in most places. The Meskwaki made its fruit into jelly and dried it for winter. Michigan lists it as extirpated, and Kentucky lists it as a species of special concern. Plant it on a sunny fencerow or at the edge of a prairie planting, for late bloom and a crop that feeds wildlife into fall.

## Size, growth and what to expect

Prairie crabapple grows at a moderate pace, so our growth estimator gives it about a foot and a half a year. Garden trees reach 20 to 30 feet tall and as wide, while wild trees run 13 to 20 feet.

Deep pink buds open to fragrant white or pale pink flowers, about an inch and a half to two inches across, in April and May. The fruit is a hard, waxy apple about an inch across that ripens in September and October. It stays green or turns yellow, and its flesh is sour and bitter. At least 20 kinds of birds and mammals eat it, from bobwhite and ruffed grouse to foxes and deer.

Its range runs from Wisconsin and Minnesota to South Dakota, and south to Kentucky, Louisiana and Texas. It grows in prairies, open woods, thickets, pastures and stream banks. Apples as a group crop well every 2 to 4 years, but some Wisconsin stands of prairie crab bear well every year.

## How to grow Prairie Crabapple

Prairie crabapple flowers best in full sun and takes part sun, but in shade its crown grows thin and scraggly. It prefers a moist, well-drained loam, yet it takes dry limestone and alkaline ground. Keep it well away from eastern red cedar, which carries cedar-apple rust. Set trees 20 feet apart, and keep each one 15 feet from a wall and 15 feet from overhead wires.

Saplings ship bare-root or potted. Plant them dormant, from leaf fall until bud swell, in a hole wider than the roots and no deeper. Set the root flare at the soil line, put the native soil back in, and keep the mulch clear of the trunk. Its deep roots make an older tree hard to move, so plant it young where it is to stay. Sow cleaned seed outdoors in fall, half an inch deep. For spring, hold it damp in the refrigerator for one to two months first. Sow early, because the seed sprouts poorly in hot weather.

Water weekly through the first summer, and in dry spells for the next two. Deer eat nearly every part of an apple tree, and rabbits and voles gnaw the bark, so keep a wire guard on each sapling for its first three or four years. Pull the root suckers if you want a single trunk. Prune in late winter, since spring cuts let in fire blight.

Its flowers are self-fertile, so a lone tree can set fruit. It is very susceptible to cedar-apple rust, and leaf diseases can strip the tree before fall. Reports on apple scab differ, from very resistant to severely affected. Fire blight, canker, borers and scale insects can also strike.

## Sources

- [Flora of North America, vol. 9: Malus ioensis, Phipps](http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242416820)
- [Trees and Shrubs Online: Malus ioensis, Sutton and Dunn 2021](https://www.treesandshrubsonline.org/articles/malus/malus-ioensis/)
- [The Morton Arboretum: Prairie crabapple](https://mortonarb.org/plant-and-protect/trees-and-plants/prairie-crabapple/)
- [Lady Bird Johnson Wildflower Center: Malus ioensis](https://www.wildflower.org/plants/result.php?id_plant=MAIO)
- [Missouri Department of Conservation Field Guide: Prairie crab apple](https://mdc.mo.gov/discover-nature/field-guide/prairie-crab-apple)
- [USDA Forest Service, Woody Plant Seed Manual (2008), Malus chapter](https://www.fs.usda.gov/nsl/Wpsm/Malus.pdf)
- [NatureServe Explorer: Malus ioensis](https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.141984/Malus_ioensis)
- [Michigan Flora, University of Michigan Herbarium: Malus ioensis](https://michiganflora.net/record/2498)
- [Missouri Botanical Garden Plant Finder: Malus, genus culture notes](https://plantfinder.mobot.org/PlantFinderDetails.aspx?taxonid=249482&isprofile=1&gen=Malus)
- [Office of Kentucky Nature Preserves: Kentucky Rare Plant List, September 30, 2022](https://eec.ky.gov/Nature-Preserves/biodiversity/Documents/2022%20Kentucky%20Rare%20Plant%20List%202.pdf)

## Read before planting

- [Ten planting mistakes that quietly kill trees](https://bluewhaletrees.com/articles/ten-planting-mistakes/index.html.md)
- [Transplanting young trees: timing, water and protection](https://bluewhaletrees.com/articles/transplanting-young-trees/index.html.md)
- [Protecting young trees from voles, rabbits, deer and squirrels](https://bluewhaletrees.com/articles/protecting-trees-from-animals/index.html.md)
- [Native trees for insects: the beetles, wasps, cicadas and fireflies that everything else eats](https://bluewhaletrees.com/articles/native-trees-for-insects/index.html.md)
- [Native trees and shrubs for butterflies and moths: host plants first, nectar second](https://bluewhaletrees.com/articles/native-trees-for-butterflies-and-moths/index.html.md)
- [Multistem or single stem? Sometimes the trunk is hiding the answer](https://bluewhaletrees.com/articles/multistem-or-single-stem/index.html.md)

## Related

- [Planting-site check](https://bluewhaletrees.com/tools/site-check/index.html.md): for a thrive, struggle or fail verdict on Prairie Crabapple, add ?species=prairie-crabapple with zone (2 to 10), sun (full, part, shade) and moisture (dry, average, wet) to that address, for example ?species=prairie-crabapple&zone=2&sun=part&moisture=average.
- [Companion species for Prairie Crabapple](https://bluewhaletrees.com/tools/companions/index.html.md?species=prairie-crabapple): the natives that share its ground and the plants that pair with it in a yard.
- [Growth estimator](https://bluewhaletrees.com/tools/growth/index.html.md): how the height and trunk projections are made; the estimate itself runs in the browser at https://bluewhaletrees.com/tools/growth/#species=prairie-crabapple
- [Seed sowing planner](https://bluewhaletrees.com/tools/sowing/index.html.md): how Prairie Crabapple is sown, in the chart for every species (treatment, cold days, depth, timing); the dated plan runs in the browser at https://bluewhaletrees.com/tools/sowing/#species=prairie-crabapple
- [Pollination planner](https://bluewhaletrees.com/tools/pollination/index.html.md): what Prairie Crabapple needs for a crop and how many to plant, in the table for every species; the planner runs in the browser at https://bluewhaletrees.com/tools/pollination/#plants=prairie-crabapple:1
- [Bloom and fruit calendar](https://bluewhaletrees.com/tools/calendar/index.html.md): the months Prairie Crabapple flowers and fruits, in the grid for every species.