Arisaema, sometimes called Cobra Lily or Jack in the Pulpit, is a unique shade loving perennial grown for its dramatic flowers and bold foliage. These woodland plants are perfect for shaded Canadian gardens and containers.
When to Plant Arisaema
Plant arisaema tubers in spring as soon as they arrive and are fresh. In most parts of Canada, this is between February and May depending on your region.
Plant them right away instead of storing them. Delaying planting can reduce tuber health and growth.
Where to Plant Arisaema
Choose a sheltered spot with full shade or partial shade. Arisaema grows best in rich, moist, well draining soil that stays evenly damp during the growing season.
These plants are ideal for:
- Woodland gardens
- Shaded borders
- Shade containers
- Gardens with hostas and ferns
Avoid hot, dry, or windy locations.
How to Plant Arisaema Tubers
For best results, start tubers in pots.
- Use individual 15 to 20 cm pots with quality multipurpose potting mix.
- Plant the tuber shallowly so the bud sits level with or just below the soil surface.
- Water well after planting.
- Keep the soil consistently moist while the plant establishes.
Once the risk of frost has passed and the plant shows active growth, you can transplant it into the garden. Space plants 20 to 30 cm apart.
For permanent containers, plant directly into a 20 to 30 cm pot filled with rich, well draining soil.
Arisaema Care Tips
Arisaema needs steady moisture throughout the growing season.
- Water regularly during dry periods.
- Keep soil moist but not waterlogged.
- Allow foliage to die back naturally after flowering. This feeds the tuber for next year.
In areas with winter frost, lift tubers in fall and store them in a cool, dry place. For container plants, move pots into a sheltered area over winter.
Refresh soil yearly by re potting or adding compost or mulch to maintain nutrients and protect roots.
Buy Arisaema Tubers in Canada at Coast Farms
At Coast Farms, we offer premium Arisaema triphyllum selected for strong growth and healthy performance in Canadian climates. Our shade loving perennials ship across Canada in season. Order online for reliable home delivery and add bold texture and interest to your woodland garden.
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