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full sun (6 or more hours of sun hitting the leaves per day. South-facing window, no obstructions. Under grow lights, keep them 4-8 inches away for 12-14 hours) to partial shade. full sun (6 or more hours of sun hitting the leaves per day. South-facing window, no obstructions. Under grow lights, keep them 4-8 inches away for 12-14 hours) produces the most vibrant leaf coloration and promotes reliable flowering. bright indirect light (3-6 feet from a south or west window, or right next to an east window. Under a grow light, 6-10 inches away works well) works indoors; place it as close to a sunny window as possible. One of the few succulents that adapts reasonably well to indoor conditions with good window light.Light
water thoroughly (water until it drains out the bottom. Empty the saucer after 30 minutes so the roots are not sitting in water) in spring and summer, then wait for the soil to dry out completely before watering again. Reduce watering significantly in fall and winter, especially if kept in a cool room. Overwatering is the primary cause of plant death - when in doubt, wait longer between waterings.Water
Tolerates low humidity well. Average indoor air is fine; no special humidity management required. This is a dry-climate succulent that prefers air on the drier side.Humidity
60-85°F (15-29°C). Not frost-tolerant; hardy outdoors only in USDA zones 9 and above. In colder climates, grow as a container plant that can be brought indoors before temperatures drop below 40°F.Temperature
easyDifficulty
Propeller Plant

Propeller Plant

Crassula falcata

Easy

Crassula falcata is a succulent with a genuinely distinctive look: its thick, sickle-shaped leaves stack in pairs at an angle along the stem, resembling the propeller blades that give the plant its name. In summer it produces dense, flat-topped clusters of brilliant scarlet-red flowers with a surprising cinnamon fragrance, which is not something you typically expect from a grey-green succulent. It is slower-growing and slightly more particular about watering than jade plant, but well within reach for anyone who has successfully kept a succulent alive before.

Care Guide

How to grow Propeller Plant

Light

full sun (6 or more

Water

water thoroughly (water until it

Humidity

Tolerates low humidity well.

Temperature

60-85°F

Soil

Gritty, well-draining succulent or cactus mix.

Propagation

Easily propagated from leaf or stem cuttings.

Common Problems

Root rot from overwatering is the main concern.

Did You Know

Fun Facts

The farina — the powdery, frosty coating on the leaves — is not dust and cannot be cleaned off. It is a waxy substance produced by the plant itself that acts as a natural sunscreen, protecting the leaves from intense UV radiation in its high-light South African habitat. Rubbing it off permanently damages that spot.

Pet Safety

Toxic to pets

Not specifically listed by the ASPCA; Crassula falcata does not appear on their toxic plant database. However, closely related species (Crassula argentea/ovata and Crassula arborescens) are listed as toxic to dogs, cats, and horses, so caution is advisable. Treat it as potentially toxic and keep it out of reach of pets and small children until clearer information is available.

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