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cobana negra

Stahlia monosperma · Fabaceae

cobana negra (Stahlia monosperma)
Photo: (c) Kurt Miller, some rights reserved (CC BY-SA) · CC BY-SA · via iNaturalist

cobana negra (Stahlia monosperma) is a perennial tree in the Fabaceae 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

Typetree USDA
Lifecycleperennial USDA
Native statusnative USDA
Mature height50 ft USDA
Soil pH7.5–7.9 USDA
BloomMarch–May USDA
Flower colorYellow USDA
Hardiness zones11 and warmer USDA
Guild layercanopy 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

Its drought tolerance is rated medium. It handles periodically wet ground (USDA rates its anaerobic tolerance medium). It is recorded on soils from pH 7.5 to 7.9 — alkaline ground. Its cold limit is zone 11.

Size and growth

At maturity it reaches about 50 ft, making it a substantial woody plant.

Bloom period

USDA records a bloom period of March through May. 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 fruit or seed heads are conspicuous, extending interest past flowering. Its active growth period is spring. Its winter foliage is dense, which makes it useful for year-round screening.

What the site needs to provide

USDA records it across sites receiving 20 to 60 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

Seed is the only propagation method USDA lists. Division and cuttings are not listed as options. USDA records no cold-stratification requirement, so seed should germinate without a chilling period.

Resilience and wildlife

Browsing animals find it moderately palatable, so expect deer and rabbits to take an interest.

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.

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Tags

evergreendrought-tolerantsalt-tolerantwet-tolerantsandy-soilalkaline-soilnativecanopy

Related plants

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol STMO, 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.

Read our full data sources and methodology.

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