Crassula falcata
Crassula falcata (Propeller Plant) Care Guide
Featured photocrassula-falcata.jpgCrassula falcata, sold as Propeller Plant, is a member of *Crassula*, a southern African succulent genus of around 200 species. A South African succulent with thick grey-green leaves arranged in opposite rows, each pair rotated 90 degrees from the next so the leaves stack like propellers. Produces dense bright-red flower clusters at maturity. Like most Crassula it tolerates long dry spells thanks to its thick fleshy leaves, and propagates readily from stem or leaf cuttings.
Care facts at a glance
- Light
- Full sun
- Water
- Water deeply when the mix is fully dry, then drain completely.
- Humidity
- 20–50 %
- Temperature
- 10–27 °C
- Soil
- Free-draining cactus or succulent mix with extra perlite or pumice.
- Origin
- Mostly southern Africa (Western and Eastern Cape), with a few species across tropical Africa and Madagascar.
- Mature size
- 10 to 60 cm tall depending on species; some cultivars stay compact.
Overview
Crassula falcata sits in Crassula, the type genus of Crassulaceae and the family that gives the broader succulent group its name. A South African succulent with thick grey-green leaves arranged in opposite rows, each pair rotated 90 degrees from the next so the leaves stack like propellers. Produces dense bright-red flower clusters at maturity. Most Crassula come from the winter-rainfall western Cape and grow during cool wet months, slowing through hot dry summers — the reverse of the seasonal pattern most northern hemisphere growers expect.
Care Priorities
- Full sun or very bright filtered light keeps stems compact.
- Free-draining mix; sustained moisture rots the roots.
- Water deeply, then let the mix dry fully.
- Many species rest in summer rather than winter — adjust watering accordingly.
Common Problems
Soft, mushy stems are overwatering — almost always fatal once it reaches the base. Wilted leaves on a dry plant recover quickly after a deep watering. Black spots on stems are a fungal sign of stress; cut back to clean tissue and replant.
Sources & further reading (2)
- encyclopedia — accessed 2026-04-29
- botanical-garden — accessed 2026-04-29
Frequently asked questions
Why are the leaves arranged in stacked pairs?
C. falcata leaves grow in opposite pairs (decussate phyllotaxy), with each pair rotated 90 degrees from the one below. The stacked arrangement is genus-typical and gives the plant its propeller-like architecture.
Why is my Crassula losing leaves at the base?
Lower-leaf drop is normal in mature Crassula and accelerates during the natural rest period. As long as the upper rosette stays firm, the bare stem is structural rather than sick — many species develop attractive woody trunks over time.
Can I prune Crassula to keep it bushy?
Yes — Crassula tolerates pruning well. Cut back leggy stems just above a leaf node and root the cuttings in dry succulent mix. The parent plant typically pushes multiple new shoots from below the cut.
