Cultivation
Care Guide
Everything you need to know to grow carnivorous plants
Water
Always use distilled, reverse osmosis or rainwater. Tap water contains minerals that slowly poison the roots. Keep the substrate moist but not waterlogged, or use the tray method.
Tray method: place the pot on a tray with 1-2 cm of distilled water and let it absorb by capillarity.
Light
Most need 6-8 hours of direct sunlight. They are full sun plants in nature. Under insufficient light, leaves etiolate and lose capturing ability.
Indoors, use LED grow lights at 5000-6500K placed 15-30 cm away for 14-16 hours.
Substrate
Unenriched peat mixed with perlite in a 1:1 ratio. Never garden soil, compost or fertilizers. Carnivores live in nutrient-poor soils and excess nutrients kill them.
Ideal mix: 50% blonde peat (Sphagnum peat) + 50% perlite. For Nepenthes: more aerated substrate with live moss.
Temperature
Varies greatly by species. Temperate ones (Dionaea, Sarracenia, temperate Drosera) need a cold winter. Tropical ones (Nepenthes, Heliamphora) prefer stable temperatures between 15-30°C.
Never expose tropical plants to frost. Temperate ones tolerate low temperatures but need protection against severe frost.
Feeding
Carnivorous plants capture their prey on their own. If kept indoors, you can offer them live or dead insects once a month. Never mammal meat or fertilizers: overfeeding burns the traps.
Recommended insects: flies, mosquitoes, small spiders, grasshoppers. Avoid mealworms (too fatty) and earthworms.
Humidity
Most prefer ambient humidity between 50-70%. Tropical species (Nepenthes, Heliamphora) need higher humidity, 70-80%. Avoid dry air currents.
A water tray under the pot or an ultrasonic humidifier are affordable solutions for dry areas.
Dormancy
Temperate species need a 3-4 month winter rest period with less light and temperatures between 2-10°C. Without dormancy, they become exhausted and die within a few years.
Signs of dormancy: yellowing leaves, traps that do not open. Reduce watering but keep substrate slightly moist.
Requirements Comparison
| Species | Light | Water | Humidity | Dormancy |
|---|---|---|---|---|
| Venus Flytrap Dionaea muscipula | 6-8h sol directo | Agua destilada | 50-70% | Yes — 3-4 months from November to February |
| Tropical Pitcher Plants Nepenthes spp. | 4-6h luz brillante indirecta | Agua destilada | 70-90% | No dormancy required |
| American Pitcher Plants Sarracenia spp. | 6-8h sol directo | Agua destilada | 50-70% | Yes — 4-5 months from November to March |
| Sundews Drosera spp. | 6-8h sol directo o semisombra brillante | Agua destilada | 50-80% | Varies: temperate species yes, tropical no |
| Butterworts Pinguicula spp. | 4-6h luz brillante indirecta | Agua destilada | 50-70% | Some species form hibernation rosettes (hibernaculum) |
| Sun Pitchers Heliamphora spp. | 4-6h luz brillante indirecta | Agua destilada | 70-90% | No formal dormancy required |
| Albany Pitcher Plant Cephalotus follicularis | 4-6h luz brillante indirecta | Agua destilada | 60-80% | Yes — winter cold period recommended |
| Brocchinia Brocchinia reducta | 5-7h sol directo o luz muy brillante | Agua destilada | 70-90% | No dormancy required |