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A picture of a Achillea 'Cassis'

Achillea 'Cassis'

Achillea millefolium 'Cassis'

Buy Achillea 'Cassis'

Photo by JohnCullenGardens (All rights reserved)

Full Sun
Easy care
Moderate watering
Frost Hardy

H7

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

60cm

Max

40cm

40cm

Min

20cm

2 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

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John Cullen Gardens

Achillea millefolium 'Cassis' - 2L Pot - Hardy Perennial - Yarrow

£8.50

Achillea 'Cassis' Overview

Achillea 'Cassie' is a sun-loving perennial with fern-like, semi-evergreen, silver-green foliage and from spring, it produces masses of daisy-like, cherry-red flowers with white eyes. This spreading, hardy cultivar is a mid-height Achillea making it an ideal choice to include mixed flower borders or prairie style planting. A useful and attractive addition to your garden, bees and butterflies also love it! Also known as Yarrow 'Cassis', it prefers full sun and moist but well-drained soils, although it will tolerate partial shade. Heavy or waterlogged soils can result in powdery mildew and rust. Requires dividing every 2-3 years. Does not require annual pruning or feeding.

Common problems with Achillea 'Cassis'

The most common problem is a fungal disease, which can be prevented by not overwatering and allowing good air circulation. Stems are floppy and prone to rotting when they fall over.

How to harvest Achillea 'Cassis'

Flowers can be cut as required for floral arrangements. Collect seeds for essential oils after the flowers have faded and before the seed matures too much.

How to propagate Achillea 'Cassis'

Cuttings

Make basal cuttings of new shoots that are about 10cm tall in Spring. Plant in pots and protect in a warm position until they root, usually within 3 weeks. Plant out in the summer.

Division

Most popular method and will prolong the plant's life if done every other year. Divides easily and can be done in Spring or Autumn. Plant the divisions 30cm apart directly in their new positions.

Special features of Achillea 'Cassis'

Attractive flowers

Attracts butterflies

Drought resistant

Ground cover

Attracts useful insects

Attracts parasitic wasps.

Crop rotation

Light feeder. Improves soil fertility and the essential oil content of nearby plants, thereby making their neighbours more resistant to insect pests.

Repels harmful insects

Repels beetles, ants and flies.

Other uses of Achillea 'Cassis'

Yarrow was used to flavour beer in the Middle Ages before hops became fashionable. Use old stalks and cuttings to activate compost heaps.

Medicinal

Oil contains antibacterial, anti-inflammatory and antispasmodic properties.

Edible

All parts are edible. Young leaves can be eaten raw and are also used for tea and as a preservative. Essential oil from the flowers used as flavouring in cold drinks.