Corydalis 'Blue Heron' is a lovely perennial known for its delicate blue flowers and fern-like foliage. Here’s how to grow it successfully:
Growing Conditions
- Light: Prefers partial to full shade. Direct sunlight can scorch the leaves.
- Soil: Well-drained, rich in organic matter. A slightly acidic to neutral pH is ideal.
- Water: Keep the soil consistently moist but not soggy. Regular watering is essential, especially in dry spells.
Planting
- Timing: Best planted in spring or fall.
- Spacing: Space plants about 12-18 inches apart to allow for spreading.
- Depth: Plant at the same depth as they were in their nursery pots.
Care
- Fertilization: Use a balanced, slow-release fertilizer in spring.
- Mulching: Apply a layer of mulch to retain moisture and suppress weeds.
- Deadheading: Remove spent flowers to encourage more blooms.
Pests and Diseases
- Generally resistant, but watch for slugs, snails, and aphids. Use organic methods for control if needed.
Propagation
- Divide clumps every few years in early spring or fall to maintain vigour.
Additional Tips
- Companion Planting: Pairs well with ferns, hostas, and other shade-loving plants.
- Season of Interest: Blooms in spring, providing early colour to the garden.
With proper care, Corydalis 'Blue Heron' can thrive and add beautiful colour to your shaded garden areas!
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