Alchemilla mollis Thriller® | Lady's-mantle

Alchemilla mollis Thriller® | Lady’s Mantle Seeds

Alchemilla mollis Thriller®, commonly known as Lady’s Mantle, is a vigorous and elegant perennial valued for its soft, rounded leaves and delicate sprays of greenish-yellow flowers. This improved variety stands out for its dense growth, strong stems, and long-lasting ornamental appeal. A perfect choice for borders, cottage gardens, and floral arrangements, Lady’s Mantle brings structure, texture, and natural beauty to any garden.

The foliage forms neat, low mounds of velvety green leaves that catch raindrops like jewels, while the airy flower clusters appear from late spring to mid-summer. It is ideal as a ground cover, edging plant, or a soft filler in mixed perennial beds and bouquets. Hardy and easy to grow, it thrives in both sunny and partially shaded areas.

Plant Details

Botanical name: Alchemilla mollis Thriller®
Common name: Lady’s Mantle
Type: Hardy perennial
Height: 30–45 cm
Spread: 45–60 cm
Flower color: Greenish-yellow
Foliage: Bright green, softly textured leaves
Blooming period: May–July
Position: Full sun to partial shade
Soil: Well-drained, humus-rich soil
Hardiness zones: 3–8

Sowing & Growing Instructions

When to sow:

• Indoors: November to March for green plants
• Outdoors: April to July for flowering pots

How to sow:

• Sow 2–3 seeds per plug in a well-drained substrate.
• Lightly cover the seeds – they need some light to germinate.
• Maintain 20–22°C during germination (7–12 days).
• Grow seedlings at 19–22°C for 4–6 weeks.
• For better results, cold stratify seeds before sowing.

Transplanting and growth:

• Grow on at 12–15°C after germination.
• Overwinter indoors frost-free at 3–5°C or outdoors in mild areas.
• Plants resume strong growth in spring at 12–18°C.

Growing Tips

• Prefers moist, well-drained soil.
• Fertilize moderately using a balanced fertilizer (N:K ratio 1:1.5).
• Avoid over-fertilization, especially high nitrogen levels.
• Remove spent flower stems to promote tidy growth.
• Cut back in autumn or early spring to refresh plants.

Garden & Floristry Uses

• Excellent for borders, edging, and ground cover.
• Perfect filler for bouquets and floral arrangements.
• Combines beautifully with roses, peonies, and other perennials.
• Long-lasting foliage and strong stems for cut flower use.
• Suitable for naturalistic and cottage-style gardens.