Plant Name: Cerastium tomentosum
Common name: Snow-in-Summer
Plant Type: Herbaceous Perennial Evergreen Groundcover
Plant Height: 6” – 12”
Plant Width: 2’ – 3’
Bloom Time: Summer
Flower Color: White
Exposure: Full Sun
Soil Requirements: Dry, Sandy, Well-Draining Soil
Water Need: Dry
Fire Resistant: YES; Plant 30’+ from house.
Attributes: Fast Growing; Silvery-Gray, Wooly Foliage; Deer Resistant; Showy Flowers; Drought Tolerant
Uses: Rock Gardens; Border Edging; Cottage Garden; Bulb Cover; Hanging Basket.
Note: Spreads by Runners; Shear off flowers after bloom; Plants are Short-Lived
Native to: Italy; Sicily
Oregon Native: NO
USDA Hardiness Zone: 3 – 7
Report by: Viki Ashford
Heron2 CC BY-SA 3.0 via Wikimedia Commons



Creeping Thyme (Thymus serpyllum): Excellent for pathways, grows flat and tolerates foot traffic. Likes well-drained soil. Soft fuzzy Appearance. Herbaceous Perennial, Fragrant, Pink flower, Sun/Part Shade, Deer Proof, Attracts Bees. USDA Hardiness Zones 4 to 9.
Wooly Thyme (Thymus pseudolanuginosus): Durable plant perfect for filling in between stepping stones, or rock gardens. Soft foliage creates a low, lush mat with pink flowers. Herbaceous Perennial, Attracts Butterflies & Bees, Sun/Part Shade, Drought Tolerant/ Water Wise Groundcover, Deer Proof. USDA Hardiness Zones 5 to 8.
Blue Star Creeper (Isotoma fluviatilis): A wonderful creeping perennial for filling in. Use between stepping stones, under shrubs, in rockery, around ponds. Tiny green leaves form a dense, low mat ½ inches high. Produces tiny light blue star-shaped flowers which cover the plant late spring into fall. Perennial, Evergreen, Full Sun/Part Shade, Tolerates Foot Traffic, Like Moisture, Deer Proof. USDA Hardiness Zones 5 to 9.