A compact, clump-forming perennial with deep, rich rose triangular plumes, produced above glossy, fern-like foliage from early summer. Height and Spread 30cm. Full sun/part shade. Moist soil. Hardy.
Astilbe x arendsii ‘Lara’ is a compact, clump-forming perennial prized for its vibrant rose-pink, triangular flower plumes and lush, fern-like foliage. With a mature height and spread of 30cm, this hardy plant is ideal for borders, containers, and shaded garden beds. Follow this detailed guide to help your Astilbe thrive from season to season.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Spring: Plant Astilbe x arendsii ‘Lara’ in early to mid-spring when the soil begins to warm. This gives the roots time to establish before the flowering season begins in early summer.
Autumn: Alternatively, plant in early autumn to allow roots to settle before winter. This supports robust growth the following year.
Site Selection
Light Requirements: Astilbe prefers partial shade but can tolerate full sun if the soil remains consistently moist. Choose a location that offers dappled light or morning sun with afternoon shade.
Soil Conditions: Moist, humus-rich, well-drained soil is ideal. Avoid dry or chalky conditions. Enrich planting areas with compost or well-rotted manure to maintain moisture and fertility.
Planting Instructions
Prepare the Site: Dig a hole twice the width and the same depth as the root ball. Loosen the surrounding soil to help the roots spread easily.
Soil Preparation: Mix organic matter such as compost or leaf mould into the soil. This improves water retention and supports healthy root development for Astilbe x arendsii ‘Lara’.
Planting: Place the plant so the crown is level with the surrounding soil. Fill in the hole and firm the soil gently.
Watering After Planting: Water thoroughly to help settle the soil. Keep the area moist, particularly during the first few weeks.
Watering Requirements
During the growing season, keep the soil consistently moist but not waterlogged. Astilbe x arendsii ‘Lara’ is sensitive to drought and will struggle in dry conditions.
Mulching in spring helps retain moisture and reduce the frequency of watering.
Feeding
Apply a balanced, slow-release fertiliser in early spring as new growth appears. This will support flowering and foliage quality.
Reapply a light dose mid-summer if needed, especially if soil fertility is low.
Pruning
Deadhead spent flower spikes to maintain the plant’s appearance and encourage healthy foliage.
In autumn, once flowering is complete, cut back dead foliage to the base. This prepares Astilbe x arendsii ‘Lara’ for winter dormancy.
Mulching
In early spring, apply a 5cm layer of organic mulch around the base of Astilbe x arendsii ‘Lara’. This helps conserve soil moisture and suppress weeds.
Mulching also offers root protection over winter and helps maintain even soil temperatures.
Supporting the Plant
Astilbe x arendsii ‘Lara’ has sturdy stems and usually does not require staking. However, in exposed locations, a small support ring can help keep flower plumes upright.
Final Tips
Astilbe x arendsii ‘Lara’ is a reliable, low-maintenance perennial that brings vibrant colour and texture to moist, shaded areas of your garden. For best results, plant in fertile, moisture-retentive soil and avoid prolonged dry spells. With minimal care, this Astilbe will deliver long-lasting floral displays from early summer into the warmer months, making it a garden favourite year after year.
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