Black Gum

Thrives in USDA Zones 4 - 9

• Transplant

  Plant young container-grown stock in spring; black gum develops a deep taproot early and resents transplanting as it ages - always buy small and plant young

• Harvest

  Not harvested for culinary use; berries extremely sour and bitter; consumed by wildlife

• Always buy small container-grown trees (4-6 feet) and plant young; large specimens develop deep taproots that make transplanting nearly impossible.

• Fall color begins earlier than almost any other native tree - often by mid-September - providing a stunning garden focal point.

• The flowers are so attractive to honeybees and native bees that black gum honey is considered a premium product in the south.

• Mulch the root zone with 3-4 inches of acidic mulch (pine bark or shredded oak leaves) to maintain soil acidity and moisture.

• Watering

  If the top 2 inches of soil feel dry, a deep watering at the base may help more than frequent light watering. In healthy soil, rain may cover much of what it needs.

• Feeding

  Extra feeding is rarely required if soil is healthy. If growth looks pale or slow, a light compost top-dressing is often enough before adding anything stronger.

• Pruning

  If pruning is needed, dormancy or the period just after harvest is often the simplest window. Dead, damaged, or crossing growth is usually the first place to start.

• Seasonal care

  In late fall, a light cleanup and fresh mulch can help if winter protection is useful in your climate. Leaving a little space around crowns and trunks often helps air move and keeps excess moisture from sitting there.

• Wildfire

  Selection with new spring growth emerging reddish-purple before turning glossy green; fall color as brilliant as the species. Good uniform form.

  Best for

  Ornamental specimen; fall color display; four-season interest

• Straight Species

  The wild-type black gum; maximum ecological value. Plant from local seed source whenever available for best climate adaptation.

  Best for

  Wildlife habitat; bee forage; spectacular fall color; long-lived specimen tree

• Black Gum Leaf Minor
• Scale; generally very pest-resistant once established

Origin

Native to eastern North America.

Native Habitat

Moist forest understories, swamp margins, river bottoms, and upland slopes from southern Maine and Ontario south to Florida and west to Texas.

Current Distribution

Widespread across eastern North America within its native range; increasingly used as a landscape tree for fall color and wildlife value.

Kingdom

Plantae

Family

Tupelo family (Nyssaceae)

Genus

Nyssa

Species

sylvatica

• Root System

  Stout, deep taproot with spreading laterals; very difficult to transplant once established; must be planted young.

• Stem

  Single-trunked tree reaching 30-60 feet with horizontal branching; dark, deeply furrowed bark resembling alligator hide on mature specimens.

• Leaves

  Alternate, elliptic to obovate, 3-5 inches long with smooth margins; lustrous dark green; turning brilliant scarlet-red in early fall.

• Flowers

  Small, greenish-white, borne in clusters in May-June; inconspicuous but extremely attractive to honeybees and native bees.

• Fruit

  Oval blue-black drupes, 1/3-1/2 inch, in clusters of 2-3; ripen September-October; bitter to humans but high-fat food for migrating birds.

Nyssa sylvatica is native across a wide range from southern Maine and Ontario south to Florida and west to Texas, growing in moist forest understories, swamp margins, and upland slopes. It is one of the longest-lived trees in eastern North America, with specimens documented at over 650 years. The genus name Nyssa refers to a water nymph, reflecting the species' frequent association with moist and swampy sites. Black gum honey, produced when bees forage on the inconspicuous flowers, is prized in Appalachian beekeeping traditions for its mild, slightly fruity flavor. The tree's exceptionally interlocked wood grain made it nearly impossible to split and was historically prized for wheel hubs, maul heads, and containers.