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Cut flowers1 variety

Gilia

Gilia capitata

Western North American annual with round blue flower clusters that attract pollinators.

Gilia in the field

Days to maturity

60–70 days

Days to germ.

14–21 days

Spacing

6–12 in

Height

12–36 in

Sun

Sun, Partial Shade

How we grow it

Germination

Days to germ.
14–21 d
Soil temp
55–70 °F
Depth
0.125 in
Light for germ
light
Pre-treatment
2-4 weeks of cold stratification can improve germination rates.

Culture

Days to maturity
60–70 d
Spacing
6–12 in
Height
12–36 in
Sun
Sun, Partial Shade
Frost
Can withstand brief dips below freezing. · to 25°F · hardy
Sow indoors
No
Outdoor / direct
Yes

Harvest

Timing · Zone 5a

JanFebMarAprMayJunJulAugSepOctNovDec
Outdoor / directApr 23 – Jun 4
Bloom (from outdoor)Jun 21 – Aug 13

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

Varieties

1 variety on record