Trees · Other Families
Black Gum 'Green Gable™'
Nyssa sylvatica 'Green gable™'
In USDA zones 7b–8a around Raleigh, Durham, and Cary, Black Gum 'Green Gable™' is a tree used in Triangle yards when mature size, sun, and drainage fit the bed. Piedmont clay rewards a wide planting hole, a slightly high crown, and steady first-season water. Give it the open sky it wants; west-facing walls in July still cook tender foliage. Fall planting is the usual window here; water through the first summer no matter the calendar.
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Key facts for the Triangle
- Botanical name
- Nyssa sylvatica 'Green gable™'
- Common name
- Black Gum 'Green Gable™'
- Plant type
- Trees
- Group
- Other Families
- Hardiness here
- USDA 7b–8a (Raleigh–Durham Triangle)
- Light
- Part sun / part shade
- Water
- Even moisture; do not let the root ball dry out
- Soil
- Well-drained
- Leaf habit
- Deciduous
- Best planting window
- Fall (October–November) in the Piedmont; spring after frost as backup
Overview
Nyssa sylvatica, commonly known as tupelo, black tupelo, black gum or sour gum, is a medium-sized deciduous tree native to eastern North America from the coastal Northeastern United States and southern Ontario south to central Florida and eastern Texas, as well as Mexico.
It is a reliable choice for fall color in the Triangle. Between the clay soil and humid summers, this tree stands out for its deciduous and overall landscape durability.
At a glance
Sun
Water & soil
Wildlife
Foliage & season
Best landscape uses
Best landscape uses
Growing & care
Practical notes for establishment and seasonal care in the Triangle—adjust for local soil tests and microclimate.
Light
Full sun to Part sun / part shade
Watering Procedure
Maintain consistent moisture, especially during establishment and July/August heat. Water slowly at the base for at least a minute to ensure the root ball doesn't dry out.
Planting & Soil
In our heavy Raleigh clay, this is a great performer if you prep the soil well. Dig your hole twice as wide as the root ball but no deeper. Mix 30% compost with your native clay backfill to open up the soil—this helps the roots breathe and prevents water from pooling. Planting 'slightly high' also ensures the roots stay healthy.
Fertilization
Apply a light, slow-release balanced fertilizer in early spring if the plant shows signs of nutrient need; avoid heavy nitrogen on newly planted material.
Pruning / upkeep
Prune only as needed for structure or clearance. In our humid climate, thin out internal crossing branches to improve air circulation.
Common questions
Is Black Gum 'Green Gable™' a good plant for Raleigh and the Triangle?
Yes—when the site matches its light and drainage needs. Black Gum 'Green Gable™' is used in Raleigh, Durham, and Cary landscapes in USDA zones 7b–8a. Confirm mature width, overhead wires, and how wet the Piedmont clay stays after storms before you plant.
When should I plant Black Gum 'Green Gable™' in North Carolina?
Fall (October–November) is the safest window for Black Gum 'Green Gable™' in the Piedmont: soil is still warm, air is cooler, and roots can grow before summer. Spring after the last frost works if you can water deeply through the first hot season.
Will Black Gum 'Green Gable™' grow in Piedmont clay?
It can, with careful planting: wide hole, crown slightly above grade, and no water sitting on the root flare. Heavy, poorly drained clay is the usual failure mode—not summer heat alone.
Does Black Gum 'Green Gable™' lose its leaves in winter?
Yes. As a deciduous tree, it drops leaves in winter and pushes new growth in spring. That winter light can be useful on the south side of a house.
How much sun does Black Gum 'Green Gable™' need?
It performs best in full sun—about 6 or more hours of direct light. Afternoon shade can help in reflected-heat courtyards, but too little sun usually means weaker flowering or open growth.
Reference context includes Wikipedia (“Nyssa sylvatica”), licensed under CC BY-SA.