Achillea ptarmica ‘Noblessa’

Description

Achillea ptarmica ‘Noblessa’ is a compact, hardy perennial known for its delicate, button-like double white flowers and finely cut, dark green foliage. It’s a beautiful addition to garden borders or containers, providing blooms from June to August. It also attracts pollinators like bees and butterflies, adding life to your garden.

PLANTING and AFTERCARE GUIDE

Best Planting Time

Spring: For optimal root development, plant Achillea ptarmica ‘Noblessa’ in spring when the soil has warmed.

Autumn: You can also plant in autumn, allowing the roots to establish before the next growing season.

Site Selection

Sunlight: Achillea ptarmica ‘Noblessa’ thrives in full sun for best flowering results, though it can tolerate partial shade.

Soil: Well-drained, moist soil is essential for this plant. It can adapt to various soil types but prefers rich, loamy soil to ensure good growth and abundant blooms.

Planting Instructions

• Preparing the Hole: Dig a hole twice as wide as the plant’s root ball and deep enough to match the root system.
• Soil Preparation: Mix in compost or organic matter to improve drainage and enrich the soil with nutrients.
• Planting: Place Achillea ptarmica ‘Noblessa’ in the hole, ensuring the top of the root ball is level with the soil surface. Backfill with soil and gently firm it down.
• Watering: Water thoroughly after planting to help settle the soil around the roots.

Watering

Once established, Achillea ptarmica ‘Noblessa’ is drought tolerant. Water regularly during dry spells but avoid overwatering as it prefers slightly moist soil.

Feeding

Spring: Apply a balanced fertiliser at the start of the growing season to encourage healthy growth and vibrant blooms.

Mid-Season: A second feeding after the first bloom will help prolong the flowering period.

Pruning

Deadheading: Remove spent flowers regularly to encourage continuous blooming and keep the plant looking neat.

Autumn: After the final flowering, cut the plant back to ground level to prepare it for the dormant season.

Mulching

Spring: Apply a layer of mulch around Achillea ptarmica ‘Noblessa’ to conserve moisture and suppress weeds.

Winter: Mulch can also protect the roots from harsh winter conditions.

Supporting the Plant

While Achillea ptarmica ‘Noblessa’ generally has strong stems, consider staking the plant in windy locations to prevent bending or damage.

Winter Care

In colder areas, add extra mulch to protect the plant’s roots from frost and ensure it returns healthy in the next growing season.

Final Tips: Achillea ptarmica ‘Noblessa’ is a versatile, low-maintenance perennial that adds charm to any garden. With its lovely white blooms and pollinator-friendly nature, it will brighten up borders and containers throughout the summer months. Regular care will ensure it thrives, bringing beauty and structure to your garden year after year.

 

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RHS Details