Darlingtonia care

🌿 Care Guide

Darlingtonia californica
Cobra Lily

A spectacular plant from the mountains of Oregon and California

☀️ Light Sun to partial shade
💧 Water Very moist & cool
🌡️ Temperature Winter dormancy (<10°C), very hardy
🌍 Origin California & Oregon
🪴 Soil Peat : perlite / Sphagnum
📅 Repotting After winter (spring)

The Darlingtonia californica, better known as the Cobra Lily, is one of the most fascinating carnivorous plants. It gets its name from the shape of its pitchers, which resemble a cobra ready to strike. This plant is hardy and requires a specific approach, especially concerning the temperature of its roots.

Origin

The Cobra Lily is native to the American states of California and Oregon. This plant typically grows in Sphagnum bogs along cool mountain streams. Often, the plant is in full sun, but because cool mountain water constantly flows past its roots, they remain at a low temperature.

Darlingtonia californica cobra lelie

Darlingtonia californica — the iconic Cobra Lily

Water

Never use tap water. Use pure rainwater, distilled water, or reverse osmosis (RO) water. Keep the soil very moist; you can safely leave the plants standing in water.

Cooling Tip: If the plant is in a warm spot, it is advisable to water from above. This helps to cool the roots and the pot, which is essential for the plant's health.

Light & Location

The Cobra Lily is flexible regarding light: it can tolerate both full sun and partial shade. It is important that the plant receives at least a few hours of sunlight per day for healthy growth and color development.

Temperature & Winter Dormancy

The plant goes dormant in winter. During this period, the temperature must remain below 10°C. The plant is hardy and can withstand frost, provided the pots are large enough to buffer against complete freezing of the root ball.

Root Temperature: In nature, the roots rarely exceed 18°C. In a warm conservatory (greenhouse), the plant can quickly suffer in summer.
Outdoor Cultivation: It is often better to place the plant outdoors from early spring. Consider using a white pot to reflect sunlight and keep the roots cool; while this may not always be necessary for large pots in our climate, it is certainly not a luxury if the plants receive a lot of light.

Soil & Repotting

Repot the plant preferably after winter or in early spring, just before the new growing season begins. Use an airy mixture that retains moisture well but also breathes.

Recommended substrate: A mixture of peat and perlite (50:50) or pure live/dried Sphagnum is perfectly adequate.

Also check out our carnivorous plant supplies for suitable soil.

Bring the Cobra Lily home

A unique, hardy challenge for the advanced enthusiast.

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Having trouble?

Do you have questions about keeping the roots cool or winter dormancy? We're happy to advise you.

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