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Arrowhead Rattlebox

Crotalaria sagittalis, Fabaceae

Zones
6–10
Layer
Ground Cover
Lifespan
Annual
Growth
Fast

Guild Roles

Nitrogen FixerGround CoverMulch MakerPest Confuser

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

Low (established)Moderate (seedling)

Soil pH

5 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Chinese Forget-Me-NotCynoglossum amabile
Nitrogen FixationPollinator Sharing
Desert SennaSenna covesii
Pollinator Sharing
Common WireweedSida acuta
Pest DeterrentBeneficial Insect Habitat

Antagonistic Plants

Coffee SennaSenna occidentalis

Both plants produce alkaloids and may exhibit allelopathic effects on each other, competing for similar soil resources

Uses

Functions

Nitrogen FixationNematode ControlQuick Summer CoverAllelopathic Weed Suppression

Common Questions

What zones does Arrowhead Rattlebox grow in?

Arrowhead Rattlebox grows in USDA hardiness zones 6 through 10.

Is Arrowhead Rattlebox a nitrogen fixer?

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

What are good companion plants for Arrowhead Rattlebox?

Good companions for Arrowhead Rattlebox include Chinese Forget-Me-Not, Desert Senna, Common Wireweed.

Design guilds with Arrowhead Rattlebox and see companion relationships visually.

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