Purple pitcher plant
Sarracenia purpurea · Sarraceniaceae
The gardener's calendar
Ideal time to plant purple pitcher plant: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Evergreen
- Blooming
- Spring (April-May)
- Adult size
- 20 to 60 cm in height
- Growth
- Slow to moderate
- Hardiness
- Very hardy (-30 °C)
- Origin
- North America (wetlands)
- Soil type
- Peaty, acidic, very moist
- Distinctive feature
- Carnivorous plant (passive trap)
Care
Watering
Keep the substrate constantly moist, even waterlogged. Use rainwater or distilled water, as hard water can harm the plant. In a pot, place the container in a saucer of water at all times. Prolonged drought is fatal to this plant from marshy environments.
Light exposure
Provide very bright light, ideally in full sun or partial shade. Purple pitcher plants appreciate 4 to 6 hours of direct light daily. Insufficient light weakens the plant and reduces trap formation.
Soil
Use a very acidic and peaty mix: blonde peat, sphagnum and perlite in equal proportions. Avoid all universal or enriched potting soils. pH must remain below 5.5. This substrate reproduces the natural conditions of acidic bogs.
Fertilizer
Do not apply any chemical fertilizer: the plant feeds on insects captured by its traps. Adding fertilizer would kill the plant. You can occasionally offer a small captured fly, but the plant will suffice with natural insects.
Pruning and maintenance
Remove only the dried or blackened traps (modified leaves). Remove spent flowers after blooming. Avoid excessive handling of the traps, which are fragile. Little intervention is needed if the environment is suitable.
Diseases and pests
Indoors, watch for spider mites and mealybugs if the air is too dry. Excess humidity can promote mold. Outdoors, few problems arise. Quickly isolate any infested plant to prevent spread.
Did you know?
The purple pitcher plant is the most cold-hardy carnivorous plant in the world: it survives harsh North American winters down to -30 °C. Its reddish traps act as passive traps: insects slip on a waxy surface and drown in the acidic digestive liquid secreted by the plant, which absorbs the nutrients. Native Americans used its rhizomes for medicinal purposes long before its discovery by European botanists.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.