Growth Rate
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- Speed: Moderate grower.
- Mature Growth: Reaches 18-24 inches in height and spreads 12-18 inches wide, forming a compact, mounded clump.
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Colorful leaves
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Flowering
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Yes |
Bloom Color
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Disease resistant
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Yes |
Cold Tolerant
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Yes |
Heat Tolerant
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No |
Drought Tolerant
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No |
Deer Resistant
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Yes |
Edible
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No |
Wildlife Attraction
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- Attracts: Bees, butterflies, and other pollinators are drawn to the nectar-rich flowers.
- Wildlife Resistant: Deer and rabbits typically avoid this plant due to its tough, textured leaves.
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Self-pollinating
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Seasonality
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- Foliage Season: Spring to fall, with attractive foliage even when not in bloom.
- Flowering Season: Mid-summer (July to August).
- Hardiness Zones: USDA Zones 4-8
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Ideal For
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- Shaded borders
- Woodland gardens
- Moist, shady areas
- Containers
- Pollinator gardens
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Leaf Description
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- Color: Bronze-green, deeply cut foliage with a glossy texture.
- Form: Fern-like leaves that form a dense, mounding clump, providing attractive foliage even after flowering.
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Flower Description
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- Color: Deep burgundy-red plumes of tightly packed, feathery flowers.
- Form: Dense, upright flower spikes, creating an eye-catching, bold display.
- Bloom Time: Mid to late summer, lasting several weeks.
- Fragrance: Not fragrant.
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Planting Instructions
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- Planting Time: Best planted in spring or early fall when temperatures are cooler and the soil is moist.
- Soil Requirements: Prefers moist, well-drained, humus-rich soil. Thrives in slightly acidic to neutral soil (pH 5.5-7.0).
- Planting Depth: Plant at the same depth as in its nursery container, with the crown level with the soil surface.
- Spacing: Space plants 12-18 inches apart to allow for airflow and mature growth.
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Pruning & Maintenance
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- Timing: Deadhead spent flowers to maintain a neat appearance, though it’s not necessary for reblooming.
- Method: In late fall or early spring, cut back the foliage to the ground to encourage fresh growth for the next season.
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Water Needs
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- Watering Frequency: Water regularly to keep the soil consistently moist, especially during dry periods. Astilbes are moisture-loving plants and do not tolerate dry soil.
- Soil Moisture: Prefers evenly moist, well-drained soil. Avoid allowing the soil to dry out completely, especially in hot weather.
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Light Needs
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Prefers partial shade to full shade. In cooler climates, it can tolerate more sun, but in hot climates, afternoon shade is essential to prevent leaf scorch. |
Harvesting
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Harvesting Season: Late spring to early summer, typically June to July depending on climate
Best Time to Cut: When the flower plumes are fully formed and color is rich but before they begin to fade
Method: Use clean, sharp garden scissors or pruning shears to cut flower stems at the base in the early morning for maximum freshness
Use as Cut Flower: Excellent in fresh floral arrangements; provides rich texture and deep reddish-purple color contrast
Drying: Can be air-dried for long-lasting arrangements—hang upside down in a dry, dark, and well-ventilated area
Rebloom Potential: Deadheading after the initial bloom may encourage a light second flush of foliage or minimal rebloom, though not guaranteed
Post-Harvest Tip: Leave some plumes on the plant for late-season visual interest and winter structure |
Fertilizing
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- Fertilization Time: Apply fertilizer in early spring when new growth begins and again after flowering.
- Fertilizer Type: Use a balanced, slow-release fertilizer or enrich the soil with organic compost to boost growth and blooming.
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Additional Care Tips
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- Mulching: Apply a 2-3 inch layer of mulch around the base of the plant to retain moisture and suppress weeds. Mulch also helps regulate soil temperature.
- Drought Tolerance: Astilbes are not drought-tolerant and need regular watering to thrive, especially in hot weather.
- Pests and Diseases: Generally pest-free, but can be susceptible to powdery mildew in overly humid or wet conditions. Ensure good air circulation and avoid overhead watering.
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Pollination
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Pollinated by bees, butterflies, and other nectar-feeding insects. |
Companion Plants
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- Hostas
- Heuchera (Coral Bells)
- Ferns
- Tiarella (Foamflower)
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