Commonly known as “lady’s mantle,” Alchemilla ‘Thriller’ sports loose clusters of yellow-chartreuse flowers that rise above the foliage in late spring to early summer. This low-mounding perennial is easily recognized by its scalloped, gently ruffled leaves that balance on its long stems. Water droplets catch in the fine hairs of its stems and leaves, making the entire plant sparkle in the early morning sunlight.

Alchemilla ‘Thriller’ lady’s mantle prefers moist, fertile soil that is well-draining. It can tolerate clay soil and coastal conditions, and is not usually appealing to deer and rabbits. It will freely self-sow. Alchemilla ‘Thriller’ would be an excellent addition to woodland borders and low-maintenance shade gardens.

Alchemilla mollis Thriller | Ladys Mantle Seeds

Alchemilla mollis Thriller, commonly known as Ladys 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, Ladys 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: Ladys Mantle
Type: Hardy perennial
Height: 3045 cm
Spread: 4560 cm
Flower color: Greenish-yellow
Foliage: Bright green, softly textured leaves
Blooming period: MayJuly
Position: Full sun to partial shade
Soil: Well-drained, humus-rich soil
Hardiness zones: 38

Sowing & Growing Instructions

When to sow:

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

How to sow:

• Sow 23 seeds per plug in a well-drained substrate.
• Lightly cover the seeds they need some light to germinate.
• Maintain 2022C during germination (712 days).
• Grow seedlings at 1922C for 46 weeks.
• For better results, cold stratify seeds before sowing.

Transplanting and growth:

• Grow on at 1215C after germination.
• Overwinter indoors frost-free at 35C or outdoors in mild areas.
• Plants resume strong growth in spring at 1218C.

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.