Photo by Melody

PlantFiles: Concrete Leaf Living Stone, Jewel Weed
Titanopsis calcarea

Family: Aizoaceae (ay-zoh-AY-see-ee) (Info)
Genus: Titanopsis (ty-tan-OP-sis) (Info)
Species: calcarea (kal-KAR-ee-uh) (Info)

Synonym:Titanopsis calcareum

2 vendors have this plant for sale.

8 members have or want this plant for trade.

Cactus and Succulents

Unknown - Tell us

3-6 in. (7-15 cm)

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

Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Late Winter/Early Spring
Mid Spring
Mid Winter


Other details:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

Soil pH requirements:
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
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
From seed; germinate in a damp paper towel

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

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By Xenomorf
Thumbnail #1 of Titanopsis calcarea by Xenomorf

By cactus_lover
Thumbnail #2 of Titanopsis calcarea by cactus_lover

By vossner
Thumbnail #3 of Titanopsis calcarea by vossner

By duester45
Thumbnail #4 of Titanopsis calcarea by duester45

By vossner
Thumbnail #5 of Titanopsis calcarea by vossner

By cactus_lover
Thumbnail #6 of Titanopsis calcarea by cactus_lover

By Xenomorf
Thumbnail #7 of Titanopsis calcarea by Xenomorf

There are a total of 15 photos.
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No positives
3 neutrals
No negatives

Gardeners' Notes:

Neutral vossner On Nov 3, 2009, vossner from Richmond, TX (Zone 9a) wrote:

This is a lovely succulent but it rots very quickly if too much moisture. One rainy day is all it will take. If more rain is in the forecast, cover it or it will surely die. I don't follow my own advice and have lost it twice, but since it can be found cheaply at the box stores in my area, I gladly buy a new one. After my first loss, I decided to never again provide supplemental water. It did great. Then the rains came and it rotted quickly. Again, withhold supplemental water and cover if more than one rainy day is expected.

Neutral cacti_lover On Dec 24, 2005, cacti_lover from Henderson, NV (Zone 9b) wrote:

Can also be found under the name Titanopsis calcareum. This plant is from South Africa. It can tolerates high heat and also down to 25F.

Neutral cactus_lover On Nov 5, 2005, cactus_lover from FSD
Pakistan (Zone 10b) wrote:

Rosettes to 10 cm wide; leaves to 2.5 cm long with truncate tip densely covered with grey tubercles; yellow flowers.


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

Phoenix, Arizona
Calabasas, California
Los Angeles, California
Mission Viejo, California
Perris, California
Richmond, California
Riverside, California
Santa Maria, California
Henderson, Nevada
Roswell, New Mexico
Cleveland, Ohio
Richmond, Texas

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