Planting guide · zone 9b
When to plant watermelon in zone 9b
In zone 9b, the average last spring frost is Feb 14 and the first fall frost is Dec 12. Here is watermelon's whole year, counted from those dates.
Feb 28Direct sowSpring
J
F
M
A
M
J
J
A
S
O
N
D
Soil & site
Sandy, warm, rich hills with room to sprawl.
Seedling care
Direct sow in warm soil; melons hate root disturbance.
Growing notes
It needs the full hot Southern summer — a perfect Tennessee crop. Slide straw under developing fruit to prevent rot.
Harvest
Three signs together: the tendril nearest the fruit browns, the ground spot turns buttery yellow, and the thump goes hollow.