new_for

Details

For Achillea ptarmica Diadem
Density
35 cm
Flowering Height
35 cm
Flowering Time
Summer-Autumn
Fragrant
No
Origin
Holland
Plant Type
Bare Root
Planting Depth
1 cm
Planting Time
Spring
Shipping Time
Spring
Sunlight
Full Sun
More details Close details

Achillea ptarmica Diadem

Diadem has a compact height of 35 cm tall

PRE-ORDER NOW!

 We start shipping our summer flowering bulbs in Spring. We start shipping by Mid March. We ship from our warehouse in London.

Bees: Loved by pollinators

Total
£4.90

Free shipping on all orders over £ 50

100% Grow Guarantee!

Rated 4.8 out of 5 by our customers

Description

Achillea ptarmica Diadem, commonly known as ‘Diadem Yarrow,’ is a resilient, compact perennial that's ideal for British gardens. Growing in a neat, rounded clump of about 30-35 cm, it’s cherished for its dense, finely textured foliage and its profusion of double, white, pompom-like blooms. 

This unique yarrow has a charming quality that sets it apart, with flowers that appear as delicate, clustered spheres rather than the flat blooms typical of other Achillea varieties.

Introduced by Dutch breeder Janus Verschoor, 'Diadem' is perfect for beds, borders, and even containers, adding structure and a soft, clean contrast to brighter summer blooms. It’s especially suited to the UK climate, thriving through both sun and partial shade and showing excellent winter hardiness.

Regular pruning will reward gardeners with prolonged flowering throughout the season, making it a reliable and low-maintenance choice for those looking to add texture and understated elegance to their garden spaces.

Botanical name: Achillea ptarmica Diadem
Common names: Yarrow, Sneezewort, Bastard Pellitory, European Pellitory, Fair-maid-of-France, Goose Tongue, Sneezeweed, Wild Pellitory, White Tansy

Flower colour: White
Flower Size: 1cm

Plant size: 1
Blooms: July-September
Soil: Moist
Sunlight: Full sun

Established height: 35cm
Established spread: 35cm
Life cycle: Perennial
Hardiness: Fully hardy
Years to establish: 2-3 years

Plant spacing: 5 per m2
Easy to grow
Scented: No
Attracts Wildlife: Butterflies, Bees, Birds, Pollinators
Pruning instructions: Remove the faded flower stalks
Pruning recommended once a year
Pruning time :July to September
Disease resistance: Very good
Overwinter: Can be left in the ground
Dispatch: Early Spring (Mid March/April)

Planting information

- Dig a hole to the required depth. You can find this required depth for each type of bulb, tuber or root in the growing guides.

- Depth is measurement of space between the soil line and top of bulb or bare root.

- Set the bulbs or bare root in place, pointed side or sprout side upward.

- Cover the bulbs by replacing the soil and water thoroughly.

Shipping rates

UNITED KINGDOM
Orders of £50 or more - FREE SHIPPING
Orders under £50 - Standard shipping - £4.99

Shipping schedule

We start shipping our spring planted flower bulbs in Spring. We start shipping by Mid March.

Bulbs that are planted in spring and have a tendency to bloom in summer are called spring bulbs. Not to be confused with bulbs that are planted in autumn and bloom in spring.

Guarantee

For over 4 generations, DutchGrown™ has built its reputation by offering the best flowers bulbs and bare root perennials available anywhere. We take pride in our exceptionally high level of quality control customer service, and our commitment to client satisfaction continues long after the bulbs leave our premises. When you order from DutchGrown™, we 100% guarantee that you will receive the hardiest flower bulbs available, packed with care and ready to thrive in your garden. Read more.

Details

For Achillea ptarmica Diadem
Density
35 cm
Flowering Height
35 cm
Flowering Time
Summer-Autumn
Fragrant
No
Origin
Holland
Plant Type
Bare Root
Planting Depth
1 cm
Planting Time
Spring
Shipping Time
Spring
Sunlight
Full Sun
More details Close details

You may also like