Lindheimer's Senna, Velvetleaf Cassia
Senna lindheimeriana

Family: Caesalpiniaceae (ses-al-pin-ee-AY-see-ee) (Info)
Genus: Senna (SEN-nuh) (Info)
Species: lindheimeriana (lind-hy-mer-ee-AY-nuh) (Info)

Category:

Alpines and Rock Gardens

Tropicals and Tender Perennials

Height:

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Spacing:

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Hardiness:

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

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Velvet/Fuzzy-Textured

Other details:

Drought-tolerant; suitable for xeriscaping

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

From semi-hardwood cuttings

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Properly cleaned, seed can be successfully stored

Regional

This plant has been said to grow in the following regions:

Tucson, Arizona

Atlanta, Georgia

Arlington, Texas

Austin, Texas (2 reports)

Bulverde, Texas

Fort Worth, Texas (2 reports)

Georgetown, Texas

Helotes, Texas

Hondo, Texas

New Braunfels, Texas

San Antonio, Texas (2 reports)

Spring Branch, Texas

show all

Gardeners' Notes:

2
positives
0
neutrals
1
negative
RatingContent
Negative

On Oct 27, 2013, topcatto from Camp Wood, TX wrote:

This plant is deadly toxic to horses and cattle, not that they normally eat it, but they only need to get a little and their muscles become weak and they cannot get up. I had to destroy one of my best horses last week after she ingested some of it. If anyone wants any, I'm about to pull up and burn every bit of it that I can find, so contact me if you want some

Positive

On Oct 24, 2011, LipLock from Austin, TX (Zone 8b) wrote:

Here's another plant that will always have a place in my zone 8b, Central Texas garden. It's easy to grow from seed, the leaves are so soft and velvety, it's a nice, soft gray color that complements so much in the landscape. In the fall it is covered with yellow flowers that give way to seed pods that the birds and squirrels feast upon. Here in Central Texas you'll see it growing in ditches & fields. In fact, that is where I got my first seed. I simply tossed the seed on the ground one fall and my yard has never been without it. You never know where it will pop up. It's very easy to control simply by pulling it up. It thrives in the sun but will tolerate shade as well (it's not quite as tall where its come up under my pecan tree). I've given seeds to all my friends and neighbors a... read more

Positive

On Mar 15, 2009, htop from San Antonio, TX (Zone 8b) wrote:

I have not grown this plant; however, I have observed it in its native habitat. Lindheimer's Senna, Velvetleaf Cassia (Senna lindheimeriana) is native to Arizona, New Mexico and Texas.