Planting guide · zone 8b
When to plant zucchini in zone 8b
In zone 8b, the average last spring frost is Mar 12 and the first fall frost is Nov 22. Here is zucchini's whole year, counted from those dates.
Mar 19Direct sowSpring
Apr 16Succession 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 7b →Zucchini in zone 8a →Zucchini in zone 9a →Zucchini in zone 9b →