bullwood
Sloanea berteriana · Elaeocarpaceae
bullwood (Sloanea berteriana) is a perennial tree in the Elaeocarpaceae family. It is native to North America. USDA records it as hardy in zone 11 and warmer, down to about 40°F.
At a glance
| Type | tree USDA |
|---|---|
| Lifecycle | perennial USDA |
| Native status | native USDA |
| Mature height | 100 ft USDA |
| Light | full-sun USDA |
| Growth rate | moderate USDA |
| Soil pH | 4.5–6 USDA |
| Bloom | June–August USDA |
| Flower color | Yellow USDA |
| Hardiness zones | 11 and warmer USDA |
| Guild layer | canopy Derived |
USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.
Growing conditions
It needs full sun. It handles periodically wet ground (USDA rates its anaerobic tolerance medium). It is recorded on soils from pH 4.5 to 6 — acidic ground. Its cold limit is zone 11.
Size and growth
At maturity it reaches about 100 ft, making it a large tree that will dominate its site. It grows at a moderate rate.
Bloom period
USDA records a bloom period of June through August. Flowers are yellow.
A flowering date, not a pollinator rating.
Foliage, flower and season
Summer foliage is green, coarse in texture. Its flowers are conspicuous. Its active growth period is year round. Its winter foliage is dense, which makes it useful for year-round screening. USDA rates its lifespan as short, so plan on replacing or resowing it rather than treating it as permanent structure.
What the site needs to provide
USDA records it across sites receiving 35 to 276 inches of annual precipitation. It needs at least 365 frost-free days to finish its season. It roots to at least 36 inches. Fertility requirement: medium.
Propagating it
It takes readily from seed, cuttings, bare root, container stock and sprigs. Seed needs cold stratification — a period of moist chilling — before it will germinate, so sow in autumn or chill it artificially before a spring sowing.
Resilience and wildlife
Browsing animals find it moderately palatable, so expect deer and rabbits to take an interest. Its fire tolerance is rated medium, and it can resprout after damage. Its growth form is recorded as rhizomatous.
Role in a guild
Canopy. In a layered planting this is the tallest layer of a planting — it sets the light budget everything beneath it lives on. The layer is derived by a fixed rule from growth habit and mature height.
Tags
Related plants
Similar role and hardiness
- Alexandrian laurel Calophyllum inophyllum
- stinkingtoe Hymenaea courbaril
- mammee apple Mammea americana
- Sierran palm Prestoea acuminata
- Puerto Rico royal palm Roystonea borinquena
Where this data comes from
Every value on this page comes from the USDA PLANTS database record for symbol SLBE, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.
- Quoted from USDA PLANTS: active growth period, Bloom, Bloom end, browse palatability, cold stratification, Edible, fall conspicuous, fertility requirement, fire tolerance, Flower color, flower conspicuous, foliage color, foliage porosity winter, foliage texture, frost free days min, fruit conspicuous, growth form, Growth rate, Hardiness zones, Lifecycle, lifespan, Light, Mature height, Minimum temperature, Native status, Nitrogen fixation, precipitation max in, precipitation min in, propagation, resprout ability, root depth in, Soil pH, Soil pH (upper), Tolerance of wet soil, Type.
- Derived by a fixed rule from those columns: Guild layer.
Read our full data sources and methodology.
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