spiny senna

Senna armata, Fabaceae

Zones

8–11

Layer

Shrub

Lifespan

Perennial

Growth

Moderate

Guild Roles

Nitrogen FixerWindbreakPollinator AttractorPest Confuser

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6.5 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Green Desert SpoonDasylirion acrotrichum

Wind ProtectionBeneficial Insect Habitat

Engelmann's Prickly PearOpuntia engelmannii

Pest Deterrent

Desert SpinachZaleya pentandra

Nitrogen FixationPest DeterrentBeneficial Insect Habitat

Antagonistic Plants

Texas paloverdeParkinsonia texana

Desert Fabaceae competing for similar ecological niches and resources

Desert RiverbeanSesbania pachycarpa

Both Fabaceae with potential for allelopathic interference and root competition

Uses

Functions

Nitrogen FixationLiving FenceWildlife HabitatErosion Control

Medicinal Uses

LaxativeDigestive Aid

Common Questions

What zones does spiny senna grow in?

spiny senna grows in USDA hardiness zones 8 through 11.

Is spiny senna a nitrogen fixer?

Yes, spiny senna is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.

What are good companion plants for spiny senna?

Good companions for spiny senna include Green Desert Spoon, Engelmann's Prickly Pear, Desert Spinach.

Design guilds with spiny senna and see companion relationships visually.

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