Blue Mist Spiraea, Bluebeard 'Worcester Gold'

Caryopteris x clandonensis

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Caryopteris (kar-ee-OP-ter-iss) (Info)
Species: x clandonensis (klan-don-EN-sis) (Info)
Cultivar: Worcester Gold




Foliage Color:


Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


24-36 in. (60-90 cm)


24-36 in. (60-90 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:

Light Blue

Bloom Time:

Late Summer/Early Fall




Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


Propagation Methods:

From softwood cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

Woodland, California

Centerbrook, Connecticut

Waukegan, Illinois

West Friendship, Maryland

Lincoln, Nebraska

New Milford, New Jersey

Fort Jennings, Ohio

Oklahoma City, Oklahoma

Chiloquin, Oregon

Portland, Oregon

Fate, Texas

Tremonton, Utah

Broadway, Virginia

Anacortes, Washington

Seattle, Washington

Madison, Wisconsin

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Gardeners' Notes:


On Dec 11, 2009, catcollins from West Friendship, MD (Zone 6b) wrote:

This beautiful scrub grows very well in central Maryland. The yellow-green leaves look stunning under deciduous trees (ours is under a red maple). It may require this bit of shade during harsh summer afternoons to prevent burning. There is no significant winter dieback here, so I trim 6 to 12 inches in late winter to maintain a neat mound and ensure lots of blooms. Blooms summer through frost and is constantly covered in honey bees, moths, and painted ladies.

Beware of planting other carypoteris in your yard. We started getting a mixture of grey-leaved and yellow-green-leaved volunteers once we planted a Dark Knight in the back yard. Sadly, they always seem to sprout in the very rocky soil right next to the driveway and do not survive being transplanted, not even when ... read more


On May 13, 2009, anelson77 from Seattle, WA wrote:

I've tried growing several cultivars of caryopteris and this is the only successful one so far (the others haven't grown much and look wimpy). The gold leaves look sensational spring through fall, and the blue flowers in the fall are a dramatic addition. I have it in full sun, poor but amended soil. I have fertilized with slow release organic fertilizer and water it occasionally in the summer. I may plant more.


On May 1, 2006, judyats from Chesapeake, VA wrote:

I grew this in a large pot where it thrived for several years. I welcomed it's rebirth each spring because of the light colored leaves, and later, the long lasting sprigs of purple flowers which the bees and butterflies loved. I lost mine this past winter for unk reasons but will look to replace it soon. A great addition to the garden.


On Nov 9, 2003, braylu from Woodland, CA wrote:

This plant grows well in California in the hot Central Valley. However, direct sun may burn edges even though an ample amount of sun is needed to get the brilliant gold color to stand out. My suggestion is to plant in morning sun areas. The leaves will turn a lime green in late summer or in shade.


On Jun 7, 2003, RubyStar from Madison, WI (Zone 5a) wrote:

Treated as a dieback shrub in at least z5, maybe even z6, though roots are reliably hardy to z5 and I've even seen it pushed to z4 with success. Regardless, the plant blooms on new wood, so bloom is not affected by winter dieback. Do not cut back until you see bud break. Actual plant height is dependent upon dieback or pruning, so may grow larger in warmer zones if not pruned.

The foliage is more chartreuse than yellow and makes a wonderful contrast for darker greens in the garden and the lavender/blue flowers that come late in the season. The flowers are fragrant, and the leaves are strongly aromatic. An easy and pleasant plant to grow and maintain.

This plant is great for adding color contrast in the garden.