Cytisus kewensis

Kew Broom

A carefree low growing groundcover shrub, Kew Broom blooms in late spring with a tremendous display of creamy-yellow flowers. Its evergreen stems give it good winter interest as well. Drought resistant/drought tolerant plant (xeric).
Zones5 - 9
Light Requirements
Full Sun
Mature Height12-18" tall
Mature Spread4-6' wide
Bloom TimeLate spring to early summer
ShippingNo longer available this season. Learn More…
SizeNo
SKUHC014518

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

Find Your Planting Zone:

You have entered an invalid zip code, please check your zip code and try again.

Product is Out of Stock
Out of stock
SKU
HC014518

Video

     
Details
12-18" tall x 4-6' wide (cutting propagated). The fabulous spring display of creamy yellow flowers and year-round, bright green stems of this spreading shrub make it a standout in the xeric landscape. Originally recommended to me by Colorado gardener, author, garden writer Marsha Tatroe, her enthusiasm for this vigorous, hybrid shrub is well founded. A carefree grower, it lives for decades as a woody groundcover in harsh sites and difficult-to-plant slopes. Combine it with upright growing ornamental grasses and around the base larger shrubs for best effect. This sterile hybrid between C. ardoinii and C. multiflorus was originally discovered at Kew Gardens in England. Here, it was recognized by the Royal Horticultural Society with their Award of Garden Merit. Thia Cytisus has not been observed to reseed in the Intermountain West. (Not for sale to CA, WA or OR.)
More Information
SKUHC014518
Common Name
Kew Broom
Botanical Name
Cytisus kewensis
Zones
5, 6, 7, 8, 9
Light Requirements
Full Sun
Flower Color
Yellow
Mature Height
12-18" tall
Mature Spread
4-6' wide
Bloom Time
Late spring to early summer
Ideal Region
West
Planting Time
Fall
Ships To Canada
No
Planting Guides
Growing Shrubs and Small Trees:
The shrubs and trees we sell are 1-2 year-old seedlings. These young plants appreciate some extra attention during their first 3 years in your landscape.

    Preferred growing conditions:
  • Check each species soil preferences before planting. Some do well in clay while others do not.
  • Mulch with common mulching materials. As they get larger (2 ft. or more in height), thicken the mulch layer to a depth of 2-3 inches.
  • Even xeric (waterwise) species will establish better and grow more quickly when given regular irrigation during the first 3 years in the garden. As they begin to reach maturity, watering frequency can be reduced to a good deep soaking every 10 to 14 days during the heat of summer.
  • Plant in full sun or part sun depending on plant preference.
  • Dig a wide but shallow hole and enrich the soil with ample amounts of compost and Yum Yum. This will help them to grow and mature more quickly.
  • Special comments:
  • Most native shrubs and trees are highly recommended for providing wildlife habitat (nesting spots, fruit or seeds for songbirds and mammals, nectar for pollinators).
  • They are excellent for use to grow as natural (un-sheared!) hedges along fences, property lines and driveways. They live for many years once established.
  • Garden Care:
  • Fertilize in the fall with Yum Yum Mix and good quality compost. This is most important during the first 3 years in the landscape. Established plants don't need to be fertilized (unless growth is stunted by extremely poor soils).
  • Where browsing animals (rabbits, deer and others) are a problem, it is advisable to protect young plants with a wire cage. These can be removed after 3-4 years in the ground.
  • Mulching is essential to maintain the soil moisture these woody plants need to establish their deep growing roots. Be sure and replenish the mulch in fall and summer to keep it sufficiently deep.

  • View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
Shipping

No longer available this season.

Reviews
Q & A

Suggested Companion Plants: