Photo by Melody

PlantFiles: Snow-In-Summer
Cerastium tomentosum 'Olympia'

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Family: Caryophyllaceae (kar-ree-oh-fil-AY-see-ee) (Info)
Genus: Cerastium (ker-RAS-tee-um) (Info)
Species: tomentosum (toh-men-TOH-sum) (Info)
Cultivar: Olympia

One vendor has this plant for sale.

Category:
Alpines and Rock Gardens
Groundcovers
Perennials

Height:
under 6 in. (15 cm)

Spacing:
6-9 in. (15-22 cm)
9-12 in. (22-30 cm)

Hardiness:
USDA Zone 2a: to -45.5 C (-50 F)
USDA Zone 2b: to -42.7 C (-45 F)
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
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)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer

Foliage:
Silver/Gray
Velvet/Fuzzy-Textured

Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Jootsey On Oct 1, 2008, Jootsey from Oconto, WI (Zone 4b) wrote:

Cut back hard in early spring. Prune after flowering to prevent flopping.

Regional...

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

Norristown, Pennsylvania
Oconto, Wisconsin



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