Dianthus barbatus

Dianthus barbatus

Sweet William

Previous scientific name(s): Aira caespitosa, Aira cespitosa, Deschampsia caespitosa ssp. genuine, Deschampsia caespitosa ssp. glauca, Deschampsi

Introduced perennial, which usually acts as an annual, will grow in all regions of the U.S. White, pink and red flowers bloom in summer, April to September. Blooms 60 to 90 days after planting in ideal conditions. Prefers moist, welldrained soils in full sun. In areas with hot summers, plant in partial shade for best results.

Varieties: 

Species Attributes

Height: 
18 
- 24 
in.
Life Form: 
Perennial
Native or Introduced: 
Introduced
Precipitation: 
Moderate
Sun & Shade Tolerance: 
Full Sun
Part Sun
Elevation: 
ft.

Soil Texture

Coarse: 
Marginal
Moderately Coarse: 
Average
Medium: 
Best
Moderately Fine: 
Average
Fine: 
Marginal

Soil pH

Acidic: 
Marginal
Neutral: 
Best
Basic: 
Marginal
Seeding Rate: 
- 4 
PLS lbs/Acre
Pure Seed per Bushel: 
40.70 lbs.
Seeds per Pound: 
408,000
Germination Time: 
Days
Mycorrhizal Dependent: 
No
Bloom Color: 
White, Pink & Red
Blooming Season: 
Spring
Summer