Coues' Cassia

Senna covesii

Native to:
Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Senna
Species:
Senna covesii
USDA Symbol:
SECO10

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Subshrub
Height:
90 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
apr,may,jun,jul,aug,sep,oct
Bloom Colors:
yellow

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Cloudless Sulphur (Phoebis sennae)

Reported Fauna Sightings

Bees: Anthophora californica Butterflies:Sleepy Orange (Eurema nicippe)

Garden & Ecology Notes

Wildlife Value:
butterflies, bees
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from rootstock following fire; adapted to desert fire regimes.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
adapted to arid desert environments

Propagation & Germination

Stratification:
None required
Scarification:
Seed coat scarification required before sowing
Germination Time:
7–30 days
Notes:
Scarification of hard seed coat required for germination; hot water treatment or mechanical scarification effective.

The above propagation data sourced from Claude AI

Pre-treatment: None required

Establishment: The Allium geyeri can be found throughout North America; from prairies to mid elevations in the mountains. The propagation protocol does not provide specific details on germination rate, temperature, or time range.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires scarification. | Requires soaking 24-48 hrs; discard floaters.

Source: Ontario Rock Garden & Hardy Plant Society