Introduction

Delft Lace Astilbe (Astilbe ‘Delft Lace’) is a stunning perennial known for its deep red stems, finely cut blue-green foliage, and feathery pink-plumed flowers. This shade-loving plant is an excellent addition to woodland gardens, borders, and moist areas. With proper care, it produces long-lasting blooms and lush foliage.
Planting and Location
- Best planting time: Spring or early fall.
- Sunlight requirements: Partial shade to full shade.
- Soil: Moist, well-draining, rich in organic matter, with a pH of 6.0–7.0.
- Spacing: 18–24 inches apart for good air circulation.
Watering Needs
- Keep soil consistently moist but not waterlogged.
- Water deeply 1–2 times per week, especially during hot, dry periods.
- Apply a layer of mulch to retain soil moisture.
Fertilization
- Apply a balanced fertilizer (10-10-10) in early spring.
- Side-dress with compost or organic matter to enrich the soil.
Growth and Maintenance
- Height and Spread: Grows 24–36 inches tall and spreads 18–24 inches.
- Pruning: Trim back spent flowers after blooming to encourage tidy growth.
- Mulching: Use organic mulch to regulate temperature and moisture.
Propagation
- Divide clumps every 3–4 years in early spring or fall to maintain vigor.
- Replant divisions in well-prepared soil and water thoroughly.
Pest and Disease Management
- Pests: Generally resistant but may attract slugs or aphids.
- Diseases: Watch for powdery mildew or root rot; ensure proper drainage and spacing.
- Remove any diseased foliage promptly.
Winter Care
- Hardy in USDA Zones 4–9.
- Cut back foliage in late fall after the first frost.
- Apply a layer of mulch for winter protection in colder regions.
Landscaping Uses
- Ideal for shaded borders, woodland gardens, and water features.
- Pairs well with hostas, ferns, and coral bells.
- Attracts pollinators like bees and butterflies.
Conclusion
Delft Lace Astilbe is a low-maintenance, shade-loving perennial that provides elegance and color to gardens. By ensuring adequate moisture, shade, and proper soil conditions, this plant will thrive and produce stunning blooms year after year.
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