Planting guide · zone 9b
When to plant radishes in zone 9b
In zone 9b, the average last spring frost is Feb 14 and the first fall frost is Dec 12. Here is radishes's whole year, counted from those dates.
Jan 10Direct sowSpring
Jan 20Succession sowing 2Spring
Jan 31Succession sowing 3Spring
Feb 10Succession sowing 4Spring
Oct 24Direct sowFall
Nov 3Succession sowing 2Fall
Nov 14Succession sowing 3Fall
Nov 24Succession sowing 4Fall
J
F
M
A
M
J
J
A
S
O
N
D
Soil & site
Any loose, average soil. Too much nitrogen grows lush tops and puny roots.
Seedling care
Direct sow only — radishes go seed to table faster than transplants would recover. Thin early.
Growing notes
Sow a short row every week or two instead of one big planting; they all mature at once otherwise.
Harvest
Pull promptly at size. Left too long they turn pithy and hot.