Knobthorn (Senegalia Nigrescens) is a perennial tree in the Fabaceae family with moderate care difficulty. It requires low watering and full sun light in USDA hardiness zones 9-11. This plant is safe for cats and dogs.

Senegalia nigrescens is a deciduous, spiny tree native to various savanna regions in Africa, characterized by a conical crown when young and a more rounded crown as it matures.

Knobthorn

Knobthorn

Senegalia Nigrescens

Senegalia nigrescens is a deciduous, spiny tree native to various savanna regions in Africa, characterized by a conical crown when young and a more rounded crown as it matures.

Quick Facts

Type
tree
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Low
Light
Full Sun
Hardiness Zones
9-11

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:sandy, loamy, rocky
Indoor:No
Outdoor:Yes
Garden Use:nitrogen fixer, wildlife habitat, erosion control

Care Calendar

Monthly care tasks for Knobthorn

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Knobthorn
Knobthorn detail

View leaf details, flowers, seeds & more in the app

Taxonomy

Family:Fabaceae
Genus:Senegalia