Description
Giant Heartleaf Lily Seeds grow Cardiocrinum cordatum var. glehnii, a dramatic woodland perennial prized by patient gardeners and collectors. Plants form bold heart-shaped foliage before sending up tall flower spikes of fragrant cream-white trumpets with green throats and soft pink-purple veining, bringing a quiet architectural presence to shaded garden spaces.
Why Grow It
- Rare woodland perennial with oversized heart-shaped foliage and a strong architectural presence.
- Tall summer flower spikes carry fragrant cream-white trumpets marked with green and pink-purple veining.
- Best for patient gardeners: seeds require cold stratification and mature plants can take several years to bloom.
Growing Information
| Botanical name | Cardiocrinum cordatum var. glehnii |
|---|---|
| Life cycle | Long-lived monocarpic perennial; mature plants bloom once, then can leave offsets |
| Mature height | 6-8 ft. flower spikes after several years, with large heart-shaped foliage rosettes |
| Light | Partial shade to dappled woodland light |
| Bloom or harvest window | Early to mid-summer after several years of growth; large fragrant white trumpets with green and pink-purple veining |
| Seed count | 20 seeds |
| Sowing advice | Cold stratify moist seed for 8-12 weeks. Surface sow or cover very lightly, then keep evenly moist in a cool seed-starting mix without waterlogging. |
| Spacing | 24-36 in. apart in rich, humus-heavy woodland beds or shaded collector gardens |
| Germination | Slow and variable; often 30-90 days at 55-65 F after cold stratification |
Best For
- woodland shade gardens
- collector perennial plantings
- dappled-light borders
- fragrant summer flower displays
- large foliage focal points
Packet Details
Includes 20 seeds. Store cool, dry, and dark until sowing. Start with moist cold stratification, then keep seedlings shaded, evenly moist, and protected while they establish.
FAQ
Do Giant Heartleaf Lily seeds need cold stratification?
Yes. Moist cold stratification for 8-12 weeks is recommended before cool germination.
How long does Giant Heartleaf Lily take to bloom?
It is a slow collector perennial and may take several years to build enough size before flowering.
Where should I plant Cardiocrinum cordatum var. glehnii?
Choose partial shade or dappled woodland light with rich, humus-heavy, well-drained soil that stays evenly moist.
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