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Cut flowers4 varieties

Dianthus

Dianthus caryophyllus

Fragrant carnation species with narrow blue-green foliage and long-stemmed, often double flowers.

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Days to maturity

60–140 days

Days to germ.

7–15 days

Spacing

6–12 in

Height

18–30 in

Sun

Sun

How we grow it

Germination

Days to germ.
7–15 d
Depth
0 in

Culture

Days to maturity
60–140 d
Spacing
6–12 in
Height
18–30 in
Sun
Sun
Frost
tender

Harvest

Timing · Zone 5a

JanFebMarAprMayJunJulAugSepOctNovDec
Sow indoorsApr 9
Outdoor / directMay 21 – Jun 18
Bloom (from indoor)Jun 7 – Jul 9
Bloom (from outdoor)Jul 19 – Sep 17

Windows are anchored to an average last frost of May 21 (1 year in 10 as early as Apr 29, as late as Jun 2) and an average first frost of Sep 18 (1 year in 10 as early as Sep 6, as late as Oct 8). In a late or early year, slide them with it.

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Trials

Every Dianthus sowingSeed sources, counts, ratings, and the observations kept against each one.Dianthus trials

Varieties

4 varieties on record