Dwarf Chinquapin Oak

Size, growth and what to expect

The first acorns on a dwarf chinquapin oak come at only 3 to 5 years, and there is a crop every year rather than every few. It grows slowly, and our growth estimator models it at about a foot a year, its figure for a slow grower. Expect something modest. Most plants stay a shrub of 6 to 15 feet with stems up to 5 inches through. Only rarely does one grow into a small tree of 20 feet.

Each acorn is half to three quarters of an inch long under a tan, warty cap that covers about a third of the nut. Wood ducks, grouse, quail, turkeys, jays, woodpeckers, squirrels, chipmunks, bears and deer all take them. The botanical name prinoides means resembling chestnut oak, for the likeness of its leaves. It flowers in April in the Southeast and from May into mid-June around New York. The acorns ripen the same year, from August into October.

It grows wild from New Hampshire to Florida and west to Iowa and Oklahoma, on dry rocky ground such as sandstone and shale outcrops among oaks and pines.

How to grow Dwarf Chinquapin Oak

Dwarf chinquapin oak suits the dry, sunny ground where bigger trees sulk. It takes full sun or part shade and wants soil that drains, be it sand, gravel or thin rock. It threatens no roof or wire, so 10 feet from a wall is plenty, with room to widen. Set plants 12 feet apart.

Plant in the dormant season. Saplings ship bare-root or in deep pots. Set it in a hole twice as broad as the roots and no deeper, hold the root flare level with grade, and return the soil you dug, unamended. Mulch a ring short of the stems. Staking is rarely needed. Sow acorns the day they drop, an inch deep under pinned hardware cloth, since they root before winter and mice hunt them.

Water deeply once a week through the first summer when rain falls short. Renew the mulch and cage the plant against rabbits and deer for three winters, then pull the cage once browsing no longer sets it back.

Prune only in winter, because oaks cut in spring draw the beetles that carry oak wilt. A lone shrub sets a light crop, so plant two or three seedlings together.