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PlantFiles: Shrubby Sundrops, Narrow-leaf Evening Primrose
Kneiffia fruticosa 'Youngii'

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Family: Onagraceae (on-uh-GRAY-see-ee) (Info)
Genus: Kneiffia
Species: fruticosa (froo-tih-KOH-suh) (Info)
Cultivar: Youngii

Synonym:Oenothera fruticosa

3 members have or want this plant for trade.

Category:
Perennials

Height:
18-24 in. (45-60 cm)

Spacing:
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
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)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Mid Summer

Foliage:
Herbaceous

Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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to view:

By Gabrielle
Thumbnail #1 of Kneiffia fruticosa by Gabrielle

By Gabrielle
Thumbnail #2 of Kneiffia fruticosa by Gabrielle

Profile:

3 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive laineygirl On Jul 5, 2014, laineygirl from Mountain Top, PA wrote:

This plant is a joy to have! In zones 5 and 6 it grows extremely well, spreading as far as you will let it. It isn't invasive here, just enthusiastic! For me, Sundrops are very easy to relocate. Simply anytime, even while it is blooming, take a shovelful, place it in a slight depression, and water well until it is established. Don't drown the plant, but be sure to not let it dry out. This is the key to successful sundrop transplantation, in my experience. Happy Gardening!

Positive mygardenefforts On Feb 13, 2008, mygardenefforts from Syracuse, NY wrote:

This plant is wonderful for sharing. Not too evasive here in central New York. Can be tamed with just a shovel and transplants beautifully. Very cheerful in the bed.

Positive jacobhugh On Oct 29, 2006, jacobhugh from Eugene, OR wrote:

Fantastic, long-lasting flower. Plants make a dense mat which can be transplanted by the shovelful. Loves the sun and doesn't need much water here in the Pacific Northwest. A very rewarding plant in the garden.

Regional...

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

Waleska, Georgia
Solsberry, Indiana
Quincy, Massachusetts
East Tawas, Michigan
Omaha, Nebraska
Livingston, New Jersey
Syracuse, New York
Lewis Center, Ohio
Eugene, Oregon
Mountain Top, Pennsylvania
Mequon, Wisconsin



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