1 named cultivar

‘Powis Castle’Powis Castle wormwood

perennial

Powis Castle Artemisia

The Story

Plant Bio

Powis Castle Artemisia is a compact perennial characterized by its finely dissected silver-gray foliage. It's drought-tolerant and low-maintenance, making it a popular choice for both gardens and landscapes.

Distinct for its aromatic foliage and ability to thrive in dry conditions, this variety exhibits a unique silver color that adds visual interest throughout the growing season.

Uses & Benefits:

Artemisia Powis offers silvery foliage that adds texture and color contrast to gardens, thriving in drought conditions and requiring minimal maintenance.

Its aromatic leaves can be used for natural pest repellents and dried for herbal uses.

Provides habitat and nectar for beneficial insects, supporting garden biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

48 inches

Light

Full Sun

Zones

6, 7, 8, 9

Water

Low

Humidity

Low

Lifespan

Perennial

Native To

Cultivated hybrid

Toxicity

Toxic if ingested

Planting

How to Grow

Tuck seedlings into well-drained soil in early spring.
Mist cuttings regularly to maintain humidity during rooting.
Water sparingly once established, avoiding overwatering.
Prune back in early spring to promote bushier growth.
Fertilize with a balanced, low-nitrogen fertilizer in spring.
Divide plants every 2-3 years in early spring for renewal.

Pro Tip

Ensure excellent drainage to prevent root rot and promote healthy growth.

Keep It Thriving

Care Guide

Do

Provide full sun for optimal foliage and flowering 🌞
Water moderately, allowing soil to dry between watering 💧
Prune annually to maintain shape and remove dead material ✂️
Use well-draining soil to prevent waterlogging
Apply organic mulch to conserve moisture

Don't

Avoid overwatering, which can cause root rot ❌
Do not fertilize with high nitrogen fertilizers, as it promotes leggy growth
Refrain from excessive pruning during late fall or winter
Never plant in poorly drained areas
Avoid using chemical pesticides unnecessarily

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silver-foliaged borderDrought-tolerant herb gardenWildflower meadow accent

Companion Plants

Lavender SageYarrow Russian sage Sedum

Multiply

Propagation Methods

Good to Know

Common Questions

Powis Castle Artemisia questions

What zones can Powis Castle Artemisia grow in?

Powis Castle Artemisia is hardy in USDA Zones 6–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Powis Castle Artemisia deer resistant?

Yes — Powis Castle Artemisia is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Powis Castle Artemisia bloom?

Powis Castle Artemisia typically blooms in late summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Powis Castle Artemisia need full sun?

Powis Castle Artemisia does best in full sun (6+ hours).

Is Powis Castle Artemisia drought tolerant?

Yes — once established (usually after the first full season), Powis Castle Artemisia handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.