Curio crassulifolius

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Curio crassulifolius
Group: Angiosperms
Order: Asterales
Family: Asteraceae
Genus: Curio
Species: C. crassulifolius
Classified: (DC., 1845) P.V.Heath, 1999
Propagation: From cutting, seed
Adult size: 10cm tall
Lighting: High
Watering: Let the soil dry completely before watering
Fertilization: Monthly during active growth
Soil: Extremely well drained
Humidity: Low humidity
Other information
Toxicity: Slightly toxic to humans and animals
Rarity: Common
See more Curio

Common names:

Blue fingers succulent, Senecio crassulifolius

Curio crassulifolius is a succulent in the Asteraceae family. They are adapted to long periods of drought and can make excellent, low effort houseplants. It is native to South Africa.


Curio is derived from the Latin "curiosus", meaning "curious".

Senecio comes from the Latin - 'old man'. This name, used by Pliny, is in reference the plant becoming grey and hairy when fruiting.

Crassulifolius is from 'crassula' meaning thick, and 'folius' meaing leaves, referring to the thick succulent leaves.



C. crassulifolius has small blue-green finger-like leaves that form spreading clumps..


C. crassulifolius inflorescence

C. crassulifolius has small light yellow flowers with a sweet and spicy cinnamon scent.


C. crassulifolius wants high light. As much direct light as possible should be provided, a south or west facing window (in the northern hemisphere) would be ideal. When placing this plant in direct sunlight it should be slowly acclimated over a few days to avoid the risk of leaves scorching or yellowing.

Use an extremely well draining soil mix (see succulent soil) and water thoroughly, allowing excess to drain. Do not allow the plant to sit in water. Allow the soil to dry through completely before watering again.

Sun Damage

Moving the plant from a low-light indoor aspect to a bright, south facing window or outside in direct sun will lead to leaves bleaching and scorching. When moving the plant outdoors, choose a spot in shade or that gets dappled or screened sunlight. Let the plant slowly acclimate to being outdoors and never move the plant into direct sun without slowly building up a tolerance first. Some direct morning or evening sun is fine but hot midday light will scorch the leaves without acclimatisation.

Slow decline

Succulent plants can experience a slow decline and death in the home. You are giving the plant lots of direct light and watering only when the soil is completely dry and yet the plant is still slowly dying. This is almost always because the soil and substrate the plant is in is too moisture retentive. The soil used by growers is often peaty and retains too much moisture, or becomes extremely difficult to rehydrate once it has dried through. This means your plant experiences extreme drought followed by long periods of being waterlogged.

Repot your plant using an extremely well draining succulent soil, stripping away as much of the existing substrate as possible. With a soil that is mostly inorganic minerals you can get away with watering your plant frequently, and knowing the substrate will be dry within a day or two. You should see an almost immediate change in your plants condition within a week or two.

Cold Damage

Exposure to the right temperatures can be the difference between a thriving plant and a plant that looks ugly and unhealthy. C. crassulifolius will survive temperatures down to 5°C / 41°F. Daytime temperatures between 15°C and 26°C (60°F and 80°F), and night temperatures between 12°C and 21°C (55°F and 70°F) are ideal for healthy growth.


C. crassulifolius is highly pest resistant, however it can be affected by spider mites and mealybugs.