Sweetwilliam

Dianthus barbatus

Native to:
Austria, Bulgaria, China, Czechia-Slovakia, France, Hungary, Italy, Korea, NW. Balkan Pen., Poland, Romania, Spain, Türkiye-in-Europe, Ukraine

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Caryophyllaceae
Genus:
Dianthus
Species:
Dianthus barbatus
USDA Symbol:
DIBA

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
60 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul
Bloom Colors:
pink, red, white, purple, bicolor

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
butterflies, hummingbirds, bees
Deer Resistant:
Yes
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
prefers sunny locations with good air circulation

Propagation & Germination

Stratification:
None required
Germination Time:
7–21 days
Notes:
Seeds germinate readily at 65-70°F; light is not required but surface sowing improves results.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society