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Oenothera macrocarpa Dwarf Silver

Dwarf Silver Evening Primrose

Exclusive. 5-6" tall x 14-16" wide. Big yellow flowers and silver foliage on this compact, semi-dwarf Evening Primrose selection make it an exciting variety for small spaces. Drought resistant/drought tolerant plant (xeric).
Zones4 - 8
Advantages
Native
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40"
Mature Height5-6" tall
Mature Spread14-16" wide
Bloom TimeSummer
ShippingNo longer available this season. Learn More…
SizeNo
SKUHC016179

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
HC016179
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Details
5-6" tall x 14-16" wide. Big yellow flowers and attractive silver foliage on a compact plant make Oenothera macrocarpa 'Dwarf Silver' a welcome addition to even the smallest garden bed. Maturing to half the size of the typical Evening Primrose, this new introduction is a tough, long blooming, waterwise perennial that will provide years of garden beauty. Although it was discovered as a seedling many years ago, its availability to our customers didn't happen until this spring. A High Country Gardens exclusive introduction
More Information
Associated SKUsHC016179
Common Name
Dwarf Silver Evening Primrose
Botanical Name
Oenothera macrocarpa 'Dwarf Silver'
Zones
4, 5, 6, 7, 8
Light Requirements
Full Sun
Flower Color
Yellow
Mature Height
5-6" tall
Mature Spread
14-16" wide
Bloom Time
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"
Advantages
Native
Special Groups
High Country Gardens Exclusive, High Country Gardens Introduction
Ideal Region
Anywhere In The US, Northeast, Midwest, West, Southwest, Pacific Northwest
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Yes - Learn More
Native To
North America
Item Unit Of Measure
Plant
Ships To Canada
No
Planting Guides
Oenothera (Evening Primrose) - a huge genus of biennials and perennials native to the Western hemisphere. Flowers are in shades of yellow, pink and white. Pollinated primarily by hawk moths. Flowers open in the afternoon and close by late morning the next day.

Preferred growing conditions
  • Plant in low fertility ("lean") soil including dry clay, positioned in full sun. Mulch with gravel or not at all.
  • Water regularly the first growing season to establish the plant. Thereafter, infrequent but deep watering is all this plant needs.
  • Deadheading is not needed as these are naturally long blooming species. Fertilize lightly in the fall with Yum Yum Mix.

    • Special comments
  • Oenothera are tap rooted plants and does not like to be transplanted once established. Don't divide as they resent having their roots disturbed.
  • Leave standing over the winter and cut back hard, leaving 2 to 3 inches of stems above ground.
  • O. speciosa 'Rosea' is a showy everblooming species that can spread aggressively and should not be planted into areas where it's enthusiastic nature can be a problem. Deadheaded to reduce reseeding. Dig out suckering roots when spreading too wide.
  • Watch for flea beetles (small metallic green beetles) which can defoliate the plants in late spring/early summer.
    • 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.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (800) 925-9387 or contact us by email.

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