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Sweet-William

Dianthus barbatus

Also listed as Caryophyllus barbatus, Cylichnanthus barbatus

Also known as Sweet William [dianthus], Bearded Pink

herbaceous☀️ full sun💧💧 moderate water❄ Hardy: Zone 3a – Zone 9b

Climate Match for your location

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Sweet-William produces dense clusters of fragrant, colorful flowers in shades of red, pink, white, and bicolor combinations. This classic cottage garden flower attracts pollinators and makes an excellent cut flower.

Why grow it

Sweet-William offers reliable, prolific flowering in mid-summer when many spring bulbs have faded, extending the season of color in mixed borders. Compared to other Dianthus species, it produces denser flower clusters and blooms more prolifically, making it useful for both garden display and cutting. The flowers attract butterflies and other pollinators while requiring minimal inputs once established in well-drained soil.

Watch out for

Plant in full sun to part shade; flowering diminishes significantly in heavy shade. Deadheading extends bloom duration, though plants often self-seed readily if flowers are left to mature. Ensure good air circulation around plants to reduce susceptibility to fungal diseases in humid conditions.

Overview

Form
Upright
Growth Rate
moderate
Size
1.5–2′ tall × 0.75–1.5′ wide
Dormancy
evergreen
Family
Caryophyllaceae
EdiblePollinators & beneficial insects

Native Range

Southern Europe

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Harvest Season

J
F
M
A
M
J
J
A
S
O
N
D

Edible Parts

flower

Season of Interest

SpringSummer

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Companion Planting

Plants well with