🌳 Grainger Hickory

Carya ovata ‘Grainger’
A named shagbark hickory selection: sweet nuts, shaggy bark, golden autumn color, and a shade tree that pays rent.
Sun
Full sun to partial shade
Days to harvest
Slow-growing; grafted trees bear sooner than seedlings, which may take decades
Spacing
30-50 feet apart
Soil pH
Tolerates 5.0-8.0; prefers slightly acidic to neutral
Zones
Zones 4-8

What it looks like

Carya ovata (species) — Carya laciniosa and ovata1
Carya ovata, the species (no verified photo of 'Grainger' itself exists). Photo: DouglasGoldman, CC BY-SA 4.0.
Carya ovata (species) — Carya laciniosa and ovata10
Carya ovata, the species (no verified photo of 'Grainger' itself exists). Photo: DouglasGoldman, CC BY-SA 4.0.
Carya ovata (species) — Carya laciniosa and ovata11
Carya ovata, the species (no verified photo of 'Grainger' itself exists). Photo: DouglasGoldman, CC BY-SA 4.0.

Why this variety

Grainger is a grafted selection of shagbark hickory, and grafting matters enormously here because seedling hickories may take decades to bear nuts — a timescale that tests even patient gardeners. A named, grafted selection like Grainger gives you a known nut type on a tree that will bear in years rather than in a future owner’s lifetime, which is the difference between planting a nut tree and planting a monument.

The nuts are sweet and rich, the classic hickory flavor that makes hickory-smoked food taste the way it does, and the tree itself is one of the great American shade trees: 60-80 feet at maturity, broad crown, golden autumn color, and the famously shaggy, peeling bark that gives shagbark its name. Plant Grainger for your grandchildren and enjoy the shade yourself — but unlike a seedling, you may also enjoy the nuts yourself.

Grafted shagbark selection — bears far sooner than seedlings. Sweet, rich nuts; shaggy bark; large shade tree at maturity. Plant more than one for pollination.

How to grow

Plant in deep soil — hickory sends down a long taproot and resents transplanting, so plant young grafted trees and leave them alone. Water young trees through dry spells; mature trees are drought-tolerant. Prune only for structure and deadwood; hickory does not enjoy being fussed over.

Plant grafted trees in full sun in deep, fertile, well-drained soil, and give them their mature spacing from day one — nut trees become large trees, and crowding a nut tree is a decades-long mistake. Stake young trees against wind, prune for a strong central leader or open form depending on species, and be patient: nut trees are measured in years to first crop and decades to peak production.

Florida framing, stated plainly: Grainger is a North Florida trial only, and a long-horizon one. Shagbark hickory’s range and chill needs sit north of most of Florida, and the tree’s mature size demands real space. In North Florida, plant on deep, well-drained soil with room for a very large tree and a second hickory for pollination, and think in decades — this is a legacy planting, not a quick crop. Further south, reference only.

Water & feeding

Water young trees deeply and regularly until established; mature nut trees tolerate dry periods but crop best with consistent moisture through nut fill. Mulch heavily with wood chips or leaves, kept off the trunk, and work worm castings into the root zone at planting and as an annual top-dress. Avoid disturbing shallow roots with cultivation — many nut trees resent root disturbance for years.

Common problems

  • Squirrels — the primary harvest competitor for every nut tree. Harvest promptly when nuts drop or husks split; leaving nuts on the ground is donating them.
  • Blight, canker, and fungal diseases — worst in humid climates. Choose resistant varieties where available, prune for airflow, and remove diseased wood promptly.
  • Wet feet — nut trees drown in waterlogged soil. If your site holds water after rain, plant elsewhere or plant on a mound.
  • Alternate bearing — a heavy crop one year followed by a light one is normal for many nut trees, not a sign of failure. Thin heavy crops and feed consistently to soften the swing.
  • Weevils and husk pests — fallen, wormy nuts should be cleaned up promptly to break pest cycles.

Harvest

Harvest when nuts drop or husks and burrs split — do not pick unopened burrs and hope. Husk or hull promptly, wash if needed, and dry thoroughly before storage; nuts stored damp go rancid or moldy. Wear gloves for spiny burrs and husky walnuts alike: the tree defends its crop, and it is right to do so.

Nerdy fact: Hickory wood is famously tough and shock-resistant, which is why it became the standard for axe handles, hammer handles, and wagon wheels. A Grainger tree is a nut orchard, a shade tree, and a future tool handle, all in one trunk — though please do not cut down your nut tree for an axe handle.

Browse all plant & pest guides

Saving seeds

Grainger is a grafted selection of shagbark hickory, and grafting matters enormously — seedling hickories may take decades to bear, while a grafted tree bears in years. Plant a grafted tree and give it deep soil and its mature spacing from day one. The Saving seeds section of the Hickory guide covers seed for the species generally.