Artemisia 'Powis Castle'
Artemisia 'Powis Castle'
Artemisia 'Powis Castle'
Artemisia 'Powis Castle'
Artemisia 'Powis Castle'
Artemisia 'Powis Castle'
Artemisia 'Powis Castle'
Artemisia 'Powis Castle'

Artemisia 'Powis Castle'

"Wormwood"

Artemisia 'Powis Castle'

1 root ball — £9.90

Autumn planting season is currently closed
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Delivery schedule

Orders placed before 1 September 2026
You can expect your order in September 2026

Orders placed 1 September - 15 October 2026
You can expect your order in October 2026

Orders placed 16 October - 15 December 2026
You can expect your order within 10 business days

Available for (pre)ordering again in May 2026
Free delivery on orders over £50
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Delivery to the UK

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on orders under £50

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on orders under £50

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Description

Artemisia 'Powis Castle' is one of those plants that quietly improves everything around it. Forming a low, rounded mound of beautifully finely divided, silvery foliage, it brings softness, structure and a cool, luminous note to borders, gravel gardens and Mediterranean-style planting. The leaves are wonderfully feathery, almost lace-like, and hold their colour superbly, making Artemisia 'Powis Castle' a valuable foil for roses, salvias, nepetas and other sun-loving companions. In late summer it may produce narrow panicles of small, dull yellow flower-heads, though these are very much a side note. The real attraction of Artemisia 'Powis Castle' lies in its foliage, which looks elegant for months on end.

As an evergreen dwarf shrub, Artemisia 'Powis Castle' earns its keep all year, especially in gardens that need dependable shape and contrast through quieter seasons. Its relaxed, billowing habit softens hard edges beautifully, whether planted near paving, at the front of a border or tumbling gently through gravel. This is also a plant with excellent garden credentials, having received the RHS Award of Garden Merit, which tells you it is as reliable as it is attractive. Give Artemisia 'Powis Castle' well-drained soil and a bright, open position, and it will settle into a handsome, aromatic clump with very little fuss. Crisp, silvery and endlessly useful, Artemisia arborescens 'Powis Castle' is a subtle classic.

Key features

  • Comes back every year

  • Attractive to wildlife

  • Loved by pollinators

  • Thrives well in full sun

  • Low maintenance

  • RHS Award (AGM)

  • Fully hardy

  • Rodent resistant

Specs & details

  • Botanical name

    Artemisia arborescens 'Powis Castle'
    Artemisia arborescens 'Brass Band'

  • Flower colour

    Yellow

  • Plant size

    9cm root ball

  • Established height

    20-30cm

  • Established spread

    50-70cm

  • Plant spacing

    9 plants per m2

  • Leaf colour

    Green, silver

  • Habit

    Spreading
    Clump-forming

  • Life cycle

    Perennial

  • Hardiness

    Fully hardy

  • Years to establish

    2-3 years

  • Sunlight

    Full sun
    Partial shade
    Dappled shade

  • Position

    Sheltered
    Exposed

  • Suitable for

    Rock gardens
    Borders
    Cottage gardens
    Low maintenance gardens

  • Soil acidity

    Any

  • Soil moisture

    Damp
    Free draining

  • Soil type

    Sandy
    Loam
    Clay
    Loam-based compost
    Stony

  • Growing skill

    Easy to grow

  • Scented

    No

  • Pollinator-friendly

    Yes

  • Mouse resistant

    No

  • Rabbit resistant

    Yes

  • Deer resistant

    Yes

  • Toxicity

    No report

Plant calendar

JanFebMarAprMayJuneJulyAugSepOctNovDec
  • Planting
  • Flowering

Useful information

    • Soak your Artemisia 'Powis Castle' roots in water for 3-6 hours prior to planting.

    • Plant your "Wormwood" bare roots into temporary pots with a multipurpose compost in spring and grow-on in a sheltered spot outdoors.

    • Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed.

    • Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.

    Read all planting & care instructions

  • Orders placed before 1 September 2026
    You can expect your order in September 2026

    Orders placed 1 September - 15 October 2026
    You can expect your order in October 2026

    Orders placed 16 October - 15 December 2026
    You can expect your order within 10 business days

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