A compact, clump-forming perennial with lush green foliage. Plumes of vibrant, lilac-pink flowers from May-June. Height 50cm. Spread 30cm. Partial shade, moist, well-drained soil. Hardy.
Astilbe japonica ‘Luna’ is a compact, clump-forming perennial that brings graceful colour and texture to shaded areas of the garden. With lush green foliage and vibrant lilac-pink plumes in late spring to early summer, this hardy plant is an excellent choice for borders, containers, or woodland gardens. Follow this step-by-step planting and care guide to help Astilbe japonica ‘Luna’ thrive.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Spring: Plant Astilbe japonica ‘Luna’ in early spring when the soil begins to warm. This allows the roots to settle before the flowering period.
Autumn: Planting in early autumn also works well, giving Astilbe japonica ‘Luna’ time to establish before winter dormancy, ensuring a stronger start the following spring.
Site Selection
Sunlight: Choose a location with partial shade. While Astilbe japonica ‘Luna’ tolerates full shade, some dappled light enhances blooming.
Soil: Ensure moist, well-drained soil enriched with organic matter. Astilbe prefers consistently moist soil and does not tolerate drought or waterlogged roots.
Planting Instructions
Prepare the Hole: Dig a hole twice as wide and the same depth as the root ball to allow space for root expansion.
Soil Preparation: Mix compost or well-rotted organic material into the existing soil. This boosts drainage and fertility.
Positioning: Place your Astilbe in the hole so the crown sits level with the surrounding soil. Avoid planting too deeply.
Backfill and Firm: Gently backfill with the enriched soil, pressing down to eliminate air pockets.
Water Well: After planting, water thoroughly to settle the soil around the roots.
Watering Requirements
Growing Season: Keep soil evenly moist throughout the active growing period. Astilbe is not drought-tolerant and benefits from regular watering, especially in dry spells.
Dormant Season: Reduce watering in late autumn and winter. Water only if the soil becomes excessively dry.
Feeding
Spring Feeding: Apply a slow-release, balanced fertiliser in early spring to encourage strong growth and abundant blooms.
Mid-Season Boost: For extended flowering, apply a second light feed of organic liquid fertiliser mid-season.
Pruning
Deadheading: Remove faded flower spikes to tidy up the plant, though many gardeners enjoy the seed heads for winter interest.
Autumn Cut-Back: After flowering ends and foliage declines, cut Astilbe japonica ‘Luna’ down to the base to promote fresh regrowth in spring.
Mulching
Spring Mulch: Add a generous layer of mulch in spring to retain moisture, suppress weeds, and enrich the soil.
Winter Protection: A winter mulch helps insulate the roots of Astilbe japonica ‘Luna’ and prevents frost damage.
Supporting the Plant
Astilbe japonica ‘Luna’ maintains a compact, upright habit and generally does not require staking. However, in exposed gardens, you may wish to support taller plumes if heavy rains or winds are expected.
Final Tips
Astilbe japonica ‘Luna’ is a superb low-maintenance perennial that brings early-season colour and softness to shaded garden spaces. With its compact growth habit and lush plumes, it works beautifully in mixed borders, underplantings, or as a companion to hostas and ferns. Plant your Astilbe in moisture-retentive soil, provide regular care, and it will return each year with a dependable and dazzling floral display. Incorporate multiple clumps of Astilbe for an eye-catching drift of lilac-pink beauty in your garden.
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