LightFlaming Katy grows best in bright, indirect light measuring…
WaterWater Flaming Katy after the surface soil becomes dry…
ToxicityToxic to pets
Mature sizeA mature plant stands about 12 to 18 in…
Flaming Katy is a compact, branching succulent with shiny green foliage and dense flower clusters. Its vivid blooms add lasting color without taking up much room. The fleshy leaves store water, so it handles occasional missed watering better than constantly wet soil. It suits bright indoor spaces and growers who want a small flowering plant with simple seasonal care.
Care data checked 25 September 2026 · Dany · A-Z Plants
Light requirements
Flaming Katy grows best in bright, indirect light measuring 150 to 250 μmol·m⁻²·s⁻¹.
Set it about 5 ft / 1.5m from a south, west or east-facing window.
Choose a place where the leaves have no direct view of the sky. Filter unavoidable sun with a sheer curtain.
Excess direct light can bleach or scorch the foliage. Weak light reduces growth and flowering.
A PAR meter or PAR meter app can measure photosynthetically active radiation as PPFD in μmol·m⁻²·s⁻¹.
Watering
Water Flaming Katy after the surface soil becomes dry. Check with a finger before watering rather than following a fixed calendar. Its succulent leaves hold moisture, so the roots need time to breathe between drinks.
Use room temperature rainwater, distilled water or reverse osmosis water.
Soak the mix until water exits the drainage holes. Let it drain fully before returning the pot to a saucer or decorative planter.
A container with drainage holes is essential. Standing water can cause root rot and soft leaves.
Reduce watering considerably during winter, when active growth slows. Waiting too long may leave the foliage wrinkled or dry at the edges.
Soil
Use a fast-draining organic succulent potting mix for Flaming Katy. The blend should release extra water quickly while holding enough moisture for the roots. Avoid dense soil that remains wet around the stem.
DIY mix: combine 2 parts coir, 2 parts coarse sand and 1 part pumice.
Always pair the mix with a pot that drains freely.
Feeding
Apply an organic fertiliser made for succulents every 2 to 4 weeks from March to October. Follow the label strength and feed only moist soil. Do not increase the dose to force more flowers. Pause feeding outside this active growing period.
Temperature & humidity
Keep Flaming Katy at 65 to 80 °F / 18 to 27 °C. An indoor humidity range of 50 to 60% is suitable. Protect it from cold drafts and sharp temperature changes. Good airflow helps when humidity sits near the upper end of that range.
What to expect
Flaming Katy reaches maturity in 6 to 12 months, giving it a fairly quick growth cycle. A mature plant stands about 12 to 18 in / 30 to 45 cm tall. Its eventual spread is 12 to 15 in / 30 to 38 cm.
Varieties & cultivars
Kalanchoe blossfeldiana ‘Apricot Glow’: Produces flowers in a soft apricot shade.
Kalanchoe blossfeldiana ‘Yellow Double’: Has double flowers in bright yellow.
Kalanchoe blossfeldiana ‘Red Lion’: Develops rich, deep red blooms.
Kalanchoe blossfeldiana ‘Fireworks’: Produces two-color flowers, including red with yellow or pink with orange.
Flaming Katy: questions
Is Flaming Katy toxic to cats and dogs?
Flaming Katy is toxic to people and pets. The ASPCA lists kalanchoe as toxic to cats and dogs. Eating any part may cause illness, so keep the plant away from children and animals…
How much light does Flaming Katy need?
Flaming Katy grows best in bright, indirect light measuring 150 to 250 μmol·m⁻²·s⁻¹. - Set it about 5 ft / 1.5m from a south, west or east-facing window. - Choose a place where the leaves have no direct view of the sky. Filter unavoidable sun with a sheer curtain. - Excess direct light can bleach…
How often should I water Flaming Katy?
Water Flaming Katy after the surface soil becomes dry. Check with a finger before watering rather than following a fixed calendar. Its succulent leaves hold moisture, so the roots need time to breathe between drinks. - Use room temperature rainwater, distilled water or reverse osmosis water. - Soak…
How big does Flaming Katy get?
Mature size indoors: A mature plant stands about 12 to 18 in….
