Rattlebox
Crotalaria spectabilis
Rattlebox is a fast-growing annual or short-lived perennial valued for its showy yellow flowers and nitrogen-fixing roots, making it useful as a cover crop or ornamental in warm gardens. Plant it in well-drained soil with at least six hours of sun and water consistently during active growth. Be aware that all parts of the plant are toxic if ingested, so site it away from areas frequented by children or livestock.
Care Level
Moderate
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
240″ – 480″
Soil
loam
Life Cycle
Perennial
Spacing
24″
Flowers
yellow
Watering Schedule
Every 7-10 Days • Water Thoroughly Until Soil Is Evenly Moist; Allow The Surface To Dry Slightly Between Waterings
Soil pH
4.9 – 8
Temperature
50° – 95°F
Mature Spread
up to 240″
Root Depth
Medium
Foliage
Medium
Propagation: Seed
Native to
Attracts
Sources
Data: trefle
Image: trefle.io — Taken Nov 18, 2021 by Garcia Juan (cc-by-sa)
No nurseries currently have this species in stock.