Planting guide · zone 8a
When to plant zucchini in zone 8a
In zone 8a, the average last spring frost is Mar 25 and the first fall frost is Nov 12. Here is zucchini's whole year, counted from those dates.
Apr 1Direct sowSpring
Apr 29Succession sowing 2Spring
J
F
M
A
M
J
J
A
S
O
N
D
Soil & site
A rich, composted mound. Zucchini are hungry and fast.
Seedling care
Direct sow 2 seeds per spot and thin to the strongest.
Growing notes
Squash vine borer is the Southern menace — a second sowing 4 weeks later outruns them. Sawdust-like frass at the stem base is the tell.
Harvest
At 6–8 in, checking daily. They genuinely double overnight.
Same crop, other zones
Zucchini in zone 7a →Zucchini in zone 7b →Zucchini in zone 8b →Zucchini in zone 9a →