Buddleia alternifolia Argentea

Silver Butterfly Bush (Spring Blooming)

Stunningly different and showy, few shrubs can rival this outstanding selection. Silver foliage with long, cascading panicles of lavender-purple flowers are sweetly fragrant and attract many colorful pollinators, especially the tiger swallowtails. Drought resistant/drought tolerant plant (xeric). 8-12' x 8-12' wide
Zones5 - 9
Advantages
Attract Butterflies
Attract Hummingbirds
Bee Friendly
Deer Resistant
Fragrant
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40"
40 to 50"
Mature Height8-12 ft. tall
Mature Spread8-12 ft. wide
Bloom TimeLate spring to early summer
ShippingNow shipping to zones 2-10.
Learn More…
SizePlant - 5" Pot
SKUHC015328

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).

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SKU
HC015328

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Details
8-12' x 8-12' wide. 1998 Plant Select® Winner. Stunningly different and showy, few shrubs can rival this outstanding selection. The long, cascading panicles of lavender-purple flowers are sweetly fragrant and attract many colorful pollinators, especially the tiger swallowtails. The silver foliage keeps it interesting when the flowers are gone. A big grower, plant it where it can stretch its branches. Not for sale to OR and WA.
More Information
SKUHC015328
Item Package Size
Plant - 5" Pot
Common Name
Silver Butterfly Bush (Spring Blooming)
Botanical Name
Buddleia alternifolia Argentea
Zones
5, 6, 7, 8, 9
Light Requirements
Full Sun
Flower Color
Purple, Silver
Mature Height
8-12 ft. tall
Mature Spread
8-12 ft. wide
Bloom Time
Late spring to early summer
Ships As
Potted Plant
Soil Type
Sandy Soil, Clay Soil, Average Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20", 20 to 30", 30 to 40", 40 to 50"
Advantages
Attract Butterflies, Attract Hummingbirds, Bee Friendly, Deer Resistant, Fragrant
Awards
Plant Select
Ideal Region
Northeast, West, Southwest, Pacific Northwest
Planting Time
Spring / Summer, Fall
Prohibited
Oregon, Washington
Item Unit Of Measure
Plant
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.
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