Jade plant care: sun, water and leaf drop

Light

Jade is a sun plant. Clemson recommends the full sun or bright filtered light of a south-facing window and says jades do best with four or more hours of direct sun a day. The University of Illinois Extension classes it as a high-light plant at minimum, about 300 foot-candles, the level directly in front of an east or west window or within 5 feet of a south one. In that kind of light the leaves stay compact and glossy, and NC State notes the margins pick up a red tint in direct sun.

In lower light a jade survives but changes shape: stems stretch, the gaps between leaf pairs lengthen and the whole plant leans toward the glass. Illinois says it also seems to do well in bright, indirect light, so a bright east window is workable, and NC State suggests a sunny indoor spot that offers some afternoon shade. In winter, keep the leaves from touching the windowpane, which Clemson specifically warns against.

Water

Treating jade like a cactus is only half right. Clemson asks for soil kept moist but not wet while the plant is actively growing in spring and summer, and the University of Illinois Extension says to let the soil nearly dry between waterings. Between those two, the working rule is to water thoroughly once the mix has dried most of the way down, then let every drop drain away. Clemson also advises against splashing water on the leaves.

The plant's distress signals are easy to read. Leaves that wrinkle, soften or fall after a dry spell mean you waited too long; Clemson lists dwarfing, foliage spotting and leaf drop as drought damage. Leaves that yellow and turn glassy, or a stem that softens at soil level, mean the opposite, and Clemson traces root rot to mix that drains slowly or to overly frequent watering.

From fall through late winter, ease off. NC State says to reduce watering in that season, Clemson says to let the soil dry between waterings in winter, and the RHS calls for very sparing water while the plant is dormant. Cool nights and short days slow drying, so check before each watering instead of carrying a summer routine into January.

Soil and pH

Clemson gives an exact recipe for a jade mix: one part sterilized organic soil, one part sphagnum peat moss and three parts coarse sand by volume. A bagged cactus mix with some added organic matter does the same job, Clemson says, and the RHS likewise recommends cactus compost. The goal is fast drainage with enough body to hold a little moisture between drinks. As a jade ages and becomes top-heavy, Clemson suggests moving it to a large, heavy pot so it does not tip over.

Humidity

Ordinary indoor air suits jade. Clemson describes it as a plant that likes the warm, dry conditions found in most homes, so there is no call for misting, pebble trays or a humidifier. Wet leaves are a liability rather than a help, so save the spray bottle for the ferns.

Temperature

Jade likes a cool night. Clemson gives 65 to 75°F (18 to 24°C) during the day and 50 to 55°F at night as ideal, cooler than most living rooms after dark, and NC State likewise asks for average to cool indoor temperatures. A sunny room that cools off at night is perfect. Protect the plant from drafts in winter, Clemson adds, and keep foliage off cold glass. Mature jades can produce clusters of star-shaped white or pink flowers in winter, Clemson notes, although NC State says they do not usually bloom in home conditions.

Fertilizer

Jade needs very little fertilizer. Clemson recommends a liquid houseplant fertilizer once every three to four months and asks you to wait four months before feeding a freshly repotted plant. The RHS suggests a general liquid feed monthly between spring and summer; for a slow plant indoors, Clemson's sparser schedule is the safer choice, since unused fertilizer collects as salts. Never feed in winter, when a resting jade cannot use the nutrients.

Work out the dose for your watering can with the fertilizer dilution calculator →

Repotting

Jades live happily for years while root-bound, Clemson says, so repotting is rarely urgent. When it is needed, do it as new growth starts in spring. Go only one or two inches wider, the general rule in Clemson's repotting fact sheet, unless the plant has become top-heavy, in which case a broad, heavy pot matters more than the rule. After repotting, Clemson advises letting the soil become dry before watering and holding off fertilizer for four months.

• The plant has become top-heavy and tips over
• Roots fill the pot and the mix dries out much faster than it used to
• Roots push out of the drainage hole

Propagation

Jade roots from almost any piece. NC State lists stem and leaf cuttings, and the RHS adds offsets, root cuttings and seed, with spring as the season. A stem cutting gives the quickest new plant: take a healthy branch tip, let the cut surface air dry and callus over, as the University of Illinois Extension advises for succulents, then set it in barely damp gritty mix. For a leaf cutting, Illinois says to insert the fleshy leaf into pre-moistened rooting media, cover it with clear plastic and keep it in bright, indirect light; a new plant forms at the base of the leaf.

Methods: Stem cuttings, Leaf cuttings, Offsets · Best season: spring.

Common problems

Jade problems nearly always come down to water or pests. Root rot follows slow-draining mix or frequent watering, and leaf drop follows extreme dryness, both according to Clemson. Mealybugs are the most common insect, looking like white puffs of cotton in the leaf joints, and Clemson's treatment is specific: wipe them off with alcohol on a cotton swab and do not use insecticidal soap, which may damage jade plants. Spider mites make leaves lose their color and look dusty or speckled.

Not sure which one it is? Try the plant problem diagnosis tool →

Is the jade plant toxic to cats and dogs?

The ASPCA lists the jade plant, under the older name Crassula argentea, as toxic to cats and dogs. The toxic principle is unknown, and the clinical signs it records are vomiting, depression and incoordination. NC State also flags Crassula ovata as a problem for cats, dogs and horses. Neither source rates it for people, so treat human toxicity as unknown rather than as safe. Sweep up dropped leaves and cuttings, keep the pot out of a pet's reach, and call your veterinarian or the ASPCA Animal Poison Control Center if your pet eats part of the plant.

Check any other plant against the ASPCA lists →