Family: Caesalpiniaceae (ses-al-pin-ee-AY-see-ee) (Info)
Genus: Senna (SEN-nuh) (Info)
Species: obtusifolia (ob-too-sih-FOH-lee-uh) (Info)
Synonym:Cassia tora
Synonym:Cassia obtusifolia
Synonym:Cassia humilis
 4 members have or want this plant for trade.
Category:
Annuals
Perennials
Shrubs
Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing:
Unknown - Tell us
Hardiness:
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade
Danger:
Seed is poisonous if ingested
Bloom Color:
Bright Yellow
Bloom Time:
Late Summer/Early Fall
Mid Fall
Foliage:
Herbaceous
Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information:
Unknown - Tell us
Propagation Methods:
From herbaceous stem cuttings
From softwood cuttings
From semi-hardwood cuttings
Seed Collecting:
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
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