Kalanchoe Kalanchoe blossfeldiana

Reviewed June 2026 · how we check this

A compact, low-water succulent grown for its long-lasting clusters of tiny four-petaled flowers in hot reds, oranges, pinks, and yellows above glossy, scalloped leaves. Tough, drought-proof, and endlessly cheerful — a forgiving bloomer for sunny windowsills.

Light

Kalanchoe is a sun-lover and needs bright light to bloom and keep its tight, mounded shape. Give it the brightest spot you have — a south- or west-facing windowsill is ideal, with several hours of direct sun each day. In dim light the stems stretch, the leaves space out, and flowering all but stops. Outdoors it takes full sun in mild climates but appreciates a little afternoon shade in scorching heat, which can bleach the foliage. After blooming, the short days of fall and winter are what trigger the next round of flowers, so don't tuck it into a dark corner.

Watering

Treat Kalanchoe like the desert succulent it is: soak thoroughly, then let the soil dry out completely before watering again — usually every 2–3 weeks, less in winter. Water at the base and keep the fleshy leaves dry to avoid rot and fungal spots. The thick, water-storing leaves mean it handles drought far better than a forgotten soaking; soggy soil quickly rots the shallow roots and crown. When in doubt, wait. Wrinkled, soft leaves mean it's finally thirsty; mushy, translucent leaves or a blackening stem base mean you've gone too far the other way.

Soil & potting

Use a gritty, fast-draining cactus and succulent mix, or amend regular potting soil with a generous helping of perlite, pumice, or coarse sand so water races through rather than lingering. Always plant in a pot with drainage holes — terracotta is ideal because it wicks away excess moisture and counters Kalanchoe's tendency toward root and crown rot. Repot only every couple of years when it's clearly outgrown its pot, moving up just one size; this plant actually flowers more reliably when slightly root-bound, so resist the urge to give it a roomy container.

Humidity & temperature

Kalanchoe is unfussy about humidity and thrives in the dry air of an average home — no misting or pebble trays needed, and damp, stagnant air actually invites powdery mildew on the leaves. Keep it comfortably warm, between 60 and 85°F. It has no frost tolerance and suffers below about 50°F, so move outdoor plants in well before the first chill and keep indoor ones off cold winter windowsills and away from icy drafts. Good airflow around the leaves keeps fungal problems at bay.

Fertilizing

Kalanchoe is a light feeder. During spring and summer growth, apply a balanced or bloom-boosting liquid fertilizer at half strength roughly once a month. To encourage the next flush of flowers, switch to a higher-phosphorus formula as buds form. Stop feeding entirely in late fall and winter while the plant rests and sets buds — feeding then pushes soft, leafy growth at the expense of blooms. Over-fertilizing shows as lush green leaves but stubbornly few flowers, so err on the lean side.

Pruning & maintenance

Deadhead spent flower clusters by pinching or snipping the stalk back to the first set of healthy leaves; this tidies the plant and encourages a fuller, bushier shape. After the whole display fades, cut the flower stems right down and lightly trim leggy growth to keep it compact. Pinching back stem tips during the growing season also promotes branching. Use clean snips, and save a few of the healthy trimmed tips — they root with almost no effort.

Propagation

Kalanchoe is wonderfully easy from cuttings. Snip a healthy stem or leaf, then let the cut end callus over for a day or two so it won't rot. Set stem cuttings into barely moist gritty mix, or lay a leaf flat on the surface; both will sprout roots in a few weeks. Water lightly and keep them warm and bright. Many varieties also produce tiny plantlets along leaf edges that root the instant they touch soil — a near-foolproof way to multiply your collection.

Common problems

Leggy, stretched growth and few flowersAlmost always too little light — and missing the short days that trigger blooms.→Soft, mushy leaves or rotting stemsOverwatering or poor drainage rotting the shallow roots and crown.→

Through the year

Spring

Growth picks up after blooming — trim spent flower stalks, resume light monthly feeding, and give it the brightest window you have.

Summer

Active growth in full sun. Water only when the soil is bone dry, feed lightly, and move it outdoors once nights stay warm.

Fall

Bud-setting season — the lengthening nights trigger flowers. Cut back water, stop fertilizing, and give it 14 hours of darkness nightly to bloom.

Winter

Blooming and resting. Water sparingly, keep it off cold glass, and enjoy the flowers — no feeding until growth resumes in spring.

Recommended supplies for Kalanchoe

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