Powis Castle
1 Gallon
$7.49
Powis Castle, 5 gallon
Powis Castle, 5 gallon
Powis Castle, 5 Gallon, Arizona Plant People
Powis Castle, 5 Gallon, Arizona Plant People

Actual size and flowering may vary slightly based on season.

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In Stock
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Powis Castle

Artemisia 'Powis Castle'
Soft, silver mounds of lacy leaves
SunFull sun
WaterLow
BloomNot showy
Height2-3 ft
Width3-6 ft
Cold hardy-10°F
USDA zones6 and warmer
FragrantPatio sizeEvergreen
Found on 1 Valley community plant list. Check with your community or HOA. Requirements are subject to change.
Arizona grown
Arrives healthy
Size
Results vary based on soil, season, sun, and watering. These reflect what this plant is capable of under good Arizona conditions.
1 GallonA small starter plant, the budget way to fill a bed.
5 GallonA larger plant with more size for a faster start. Container class can vary slightly by crop, and when it does we send the larger size.
$7.49
Straight from Arizona growers to your door.
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Questions? Reach us at (480) 620-4838 or hello@arizonaplantpeople.com.
Will it thrive in your climate?
Results based on climate and cold hardiness. For soil-specific guidance see Care and Planting.
Based on your ZIP's USDA hardiness zone, your part of Arizona, and this plant's cold rating.

Powis Castle is a mounding shrub grown for its abundant soft, silver, lacy leaves. It grows about 2 to 3 feet tall and spreads 3 to 6 feet, giving cool silver contrast in beds and mass plantings. The leaves are slightly fragrant, and deer and rabbits tend to leave it alone.

Best for: silver foliage contrast in beds and borders, mass plantings, and sunny beds.

Where it works best in Arizona yards
Silver contrast
Soft, lacy leaves
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Its abundant silver leaves cool down green and bright flower colors in a bed.

Mass plantings
Low, spreading mounds
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It forms mounds about 2 to 3 feet tall and 3 to 6 feet wide, good for filling beds and borders.

Pest-resistant planting
Deer and rabbits pass
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Its slightly fragrant leaves help keep deer and rabbits away, so it holds up in yards where they browse.

Where it struggles
Soggy soil
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It handles full sun in the Valley, but soggy, poorly drained soil is a problem for it.

Needs may vary based on your yard layout, desired density, sun and shade, and any underground wiring or piping.
  • Plant to plant3 ft apart
Spacing calculator
How many plants fit in your bed or planting area?
These are general guidelines. Conditions vary by soil type, sun, and time of year.
For this plant: It grows in full sun in the Valley, and it also takes some afternoon shade. Plant it in soil that drains.
Showing:
When to plant in the Valley
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Ideal The easiest time to plant. Roots get the longest stretch of good weather to settle in.
Good Plantable with normal care. Roots settle in more slowly, but there is little stress.
Extra care needed Can be done with closer attention to watering while the plant settles in.
Most demanding The hardest window. Planting is possible, but expect frequent deep watering while it settles in.
This month Outlined in the strip.
The colors show how much effort getting a plant rooted takes in each month.
In the Valley, frost is possible from about Thanksgiving to Valentine's Day.
When to plant around Sedona, Cottonwood and Globe
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Ideal The easiest time to plant. Roots get the longest stretch of good weather to settle in.
Good Plantable with normal care. Roots settle in more slowly, but there is little stress.
Extra care needed Can be done with closer attention to watering while the plant settles in.
Most demanding The hardest window. Planting is possible, but expect frequent deep watering while it settles in.
This month Outlined in the strip.
This plant can go in the ground any time of year. The colors show how much effort getting it rooted takes in each month.
At mid elevation the last frost usually comes between late March and late April; a later frost is possible.
When to plant around Prescott, Payson and Chino Valley
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Ideal The easiest time to plant. Roots get the longest stretch of good weather to settle in.
Good Plantable with normal care. Roots settle in more slowly, but there is little stress.
Extra care needed Can be done with closer attention to watering while the plant settles in.
Most demanding The hardest window. Planting is possible, but expect frequent deep watering while it settles in.
This month Outlined in the strip.
No data Not enough sources cover this month here yet.
The colors show how much effort getting it rooted takes in each month.
In the high desert the last frost usually comes in early to mid May; frost is possible into late May or June.
When to plant around Flagstaff, Show Low and Williams
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Good Plantable with normal care. Roots settle in more slowly, but there is little stress.
Extra care needed Can be done with closer attention to watering while the plant settles in.
Most demanding The hardest window. Planting is possible, but expect frequent deep watering while it settles in.
This month Outlined in the strip.
The colors show how much effort getting it rooted takes in each month. Winter cold here is close to this plant's limit. Plant it in a warm spot and protect it in hard freezes.
In the mountains the last frost usually comes between late May and late June.
Sun
Full sun or some shade
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It grows in full sun in the Valley, and it also takes some afternoon shade.

Watering
Little water
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Water a new plant every 2 to 4 days for the first few weeks, then stretch the time between waterings. Once rooted, give it little water.

Drainage
Soil that drains
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Plant it in soil that drains. It tolerates clay and rocky soil if water does not stand.

Site and soil prep
Drainage test, weed cloth, rock and decomposed granite yards
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Drainage test first. Dig the hole and fill it with water. If water is still sitting in the hole a day later, you likely hit caliche, clay or hard soil, so fix the drainage before planting. If it drains very fast, the soil is sandy. Standing water around roots is a common reason new plants fail.

Weed cloth. Cut it away from the planting hole and where the roots will spread. Remove any plastic sheeting completely, since it keeps water and air out of the soil.

Rock or decomposed granite with no soil underneath. Bring in soil close in texture to your native soil, mix it with the soil below, and build up enough depth for roots before planting.

Caliche prep
Break through or mound over it
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If you can break through. Use a breaker bar, pick, or jackhammer. Dig through the caliche and break out the solid chunks. Backfill with the soil you dug out, with no compost or manure in the hole. Confirm drainage before planting.

If you cannot break through. Dig narrow holes through the hard layer beside the root ball, not under it, and refill them with the same soil, not gravel. If it still will not drain, plant on a low mound of the same soil.

Planting
Root ball, depth, emitter placement
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Root ball. Check the outside edges for any roots circling around. Loosen or cut those so they grow outward. Do not break up the center of the root ball.

Depth. The top of the root ball should sit at or just slightly above the surrounding soil level. Planting too deep can lead to rot and kill the plant.

Drip emitters. At planting, put the emitters on the root ball, on different sides of the plant. After about 2 months, move them to the outer edge of the root ball. Over the first year, add emitters farther out toward the edge of the branches as roots grow. Once a plant is rooted, never water only at the trunk.

Soil guide: tap any type for details
Native desert soil
Well suited
Native soil works as long as it drains well.
Sandy or rocky soil
Well suited
Fast-draining sandy or rocky soil suits it.
Clay soil
Manageable
It tolerates clay if water drains away.
Plant only where water soaks in and drains away.
Caliche
Prep required
Dig out caliche from the bed so it drains.
Have a question?
Ask us anything about this plant and we will get back to you directly.

How big does Powis Castle get?
It grows about 2 to 3 feet tall and spreads 3 to 6 feet wide.

Does Powis Castle need shade in Phoenix?
It grows in full sun, and it also takes some afternoon shade.

What soil does it need?
Plant it in soil that drains well. It tolerates clay and rocky soil if water drains.

Is Powis Castle fragrant?
Yes. The leaves are slightly fragrant, and that helps keep deer and rabbits away.

Does it flower?
It has small yellow flowers that are not showy. People grow it for its silver leaves.

How much water does it need?
It needs little water once rooted.

Is it cold hardy?
Yes. It is rated to about -10°F.

Where did the name come from?
It was bred for the gardens at Powis Castle in Wales.

Real, approved advice from Arizona growers who have planted Powis Castle.
No tips here yet. If you've grown Powis Castle in an Arizona yard, use the "Love this plant?" box under the photo to share what worked. Approved tips show up here.

Powis Castle for sale in Arizona, delivered to you

Powis Castle is a mounding artemisia with soft, silver, lacy leaves. Below: size, sun, water, soil and use.

Sourced from trusted Arizona growers and delivered directly to your door, job site, or property. We deliver across the Valley and to nearby towns, and quote delivery anywhere else in Arizona.

Powis Castle artemisia in the Valley

A mounding shrub with soft silver leaves; it grows in full sun here.

Powis Castle size

About 2 to 3 feet tall and 3 to 6 feet wide.

Silver foliage plants for Phoenix yards

Its lacy silver leaves contrast with green plants and bright flowers.

Powis Castle soil

It needs soil that drains and tolerates clay and rocky soil.

Powis Castle and rabbits

Its fragrant leaves help deter deer and rabbits.

Watering Powis Castle

Give it little water once it is rooted.

We deliver across the Valley, from Phoenix, Scottsdale and Mesa out to San Tan Valley, Maricopa and Casa Grande, and up to Prescott, Sedona, Payson and Globe. See delivery areas and rates.