Oenothera macrocarpa Dwarf Silver
Dwarf Silver Evening Primrose
Details5-6" 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
HBLO951 (Plant - 5" deep pot)
HBLO921 (Plant - 2.5" deep pot) - Out of stock.
|Common Name||Dwarf Silver Evening Primrose|
|Botanical Name||Oenothera macrocarpa 'Dwarf Silver'|
|Zones||4, 5, 6, 7, 8|
|Light Requirements||Full Sun|
|Mature Height||5-6" tall|
|Mature Spread||14-16" wide|
|Ships As||Potted Plant|
|Planting Time||Spring / Summer, Fall|
|Soil Type||Clay Soil, Sandy Soil, Average Soil|
|Soil Moisture||Drought Resistant / Waterwise|
|Amount of Rain||10 to 20", 20 to 30", 30 to 40"|
|Advantages||Deer Resistant, Attract Butterflies, Groundcover, Native|
|Special Groups||High Country Gardens Exclusive, High Country Gardens Introduction|
|Ideal Region||Anywhere In The US, Northeast, Midwest, Southwest, West, Pacific Northwest|
|Neonicotinoid-Free||Yes - Learn More|
|Ships to Hawaii, Alaska & Canada||No|
- 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.
Plant Shipping: Buy now and we will ship your order at the ideal planting time for your region. Spring-Planted Perennial and Bulb orders will ship from February 27-June 30, warmest zones first. Most plant orders will arrive within 3-4 days, or less, of leaving our greenhouses. This prompt delivery is provided without additional express charges.
Grass Plugs Will ship at planting time in spring 2017, beginning in late February.
Wildflower Seed & Grass Seed Orders ship within 2-3 days.
Standard shipping costs are $4.99 and up, depending on the size of the order.
Make Fast Even Faster: For ‘Rush’ same week delivery, please call customer service at 800-925-9387.
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Comments about High Country Gardens Oenothera macrocarpa Dwarf Silver:
We planted several along the top of a rock wall that had been back filled with pea gravel. To my surprise these took off and flowered all summer that first year. This will be their second summer and they are all happy and filling out beautifully! Again.... these were planted in straight pea gravel!
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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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