Light
A wide range works, from bright light up to full sun or a strong, intense grow light. A bright windowsill or a moderate grow light is enough to keep it healthy, though the pitchers stay mostly green. Push it toward full sun or a strong grow light for 12 to 15 hours a day, and the pitchers deepen into a rich red and near-black colouring.
Soil
A leaner, more mineral-heavy mix than the other carnivorous plants we sell: roughly 3 to 4 parts sand or coarse grit to 1 part peat or finely milled sphagnum.
Use pure peat with no fertilizer or other additives. Use plastic or glazed pots rather than unglazed terracotta, which dries out fast and can slowly leach minerals into the mix. A tall pot with good drainage holes works best.
Water
Keep media damp using rainwater, distilled water, or reverse osmosis water. Stand the pot in a shallow tray, no more than 1/4 of the way up the pot, and let it run dry before refilling. Cephalotus is more prone to rot than most carnivorous plants when kept too wet, especially in cool weather, so aim for evenly moist rather than saturated and ease off further over winter.
Want to know exactly what makes water safe for these plants? Read our full Carnivorous Plant Water Guide for TDS testing, filtration, and RO systems.Humidity
Moderate, roughly 50 to 70%. Ordinary household humidity is tolerated better here than with most carnivorous plants.
Temperature
Likes a genuine difference between summer and winter, with warm days and a 5 to 10°C drop at night. It handles light frost, but avoid sustained heat above about 32°C.
Dormancy
No true dormancy. Growth slows over winter, and a mild cool rest with less water and less light for a few months tends to keep plants healthier long term. Plenty of growers skip it entirely with no issues, so this isn't one to worry about.
Feeding & Fertilizer
Never fertilize the soil. A Cephalotus's roots are extremely sensitive to fertilizer.
A diluted liquid fertilizer or a small dried insect dropped into a pitcher once a month is plenty. Small, young pitchers sometimes brown off after a feed, which looks alarming but doesn't harm the plant.
Pruning & Repotting
Trimming
Trim dead pitchers and leaves off at the base once they've browned. The flat, non-carnivorous leaves dying back while the pitchers keep coming is normal.
Repotting & dividing
Repot every 3 to 5 years into fresh media, using a tall pot. The roots are thick, woody and brittle, so handle them gently and disturb them as little as possible. Established clumps can be divided at the same time.
