Senna Species, Coves' Senna, Desert Senna, Rosemaria, Rattlebox, Rattleweed

Senna covesii

Family
Fabaceae (fab-AY-see-ee)
Genus
Senna (SEN-nuh)
Synonym
Cassia covesii
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Evergreen
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness
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)
Bloom Color
Bright Yellow
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Other Details
Category
Trees
Tropicals and Tender Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Bronze
Where to Grow
Can be grown as an annual
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Oracle, Arizona

Phoenix, Arizona(2 reports)

Tucson, Arizona

Elephant Butte, New Mexico

Featured Videos

Gardener's Notes:

3
positives
1
neutral
0
negative
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C
Albuquerque, NM | October 2017 | positive

I found this growing wild south of Carlsbad, New Mexico. In fact maybe saw only about 5 and I did lots of hiking/walking in this area of ...Read More

P
Phoenix, AZ | February 2015 | positive

Central Phoenix -- I grow this AZ native in an elevated bed that gets only natural precipitation. It does well and reseeds freely. It b...Read More

S
Bowie, AZ | December 2014 | positive

A gorilla gardener had planted this back near our garden wall. Wonderful foliage contrasts well with the native rock xeri scape. I'm curi...Read More

X
Phoenix, AZ (Zone 9b) | February 2007 | neutral

I've found this growing in the wild near Oracle, AZ

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