What to Plant in August
USDA Zone 5b
Last frost: Apr 15 – May 1
Frost-free days: 150–170
Fall planting season is starting. Direct sow radishes, lettuce, spinach, and other fast cool-season crops for autumn harvest. Start brassica transplants indoors.
August at a Glance
Indoor
Transplant
Direct Sow
1
5
10
15
20
25
Spinach
Radishes
Turnips
Direct Sow 3
Plant these seeds directly into the soil outdoors.
Radishes
Apr 1 – Sep 1
16 per sq ft
22–30 days
Turnips
Aug 1–15
9 per sq ft
30–60 days
Spinach
Aug 15 – Sep 15
9 per sq ft
35–50 days
August Gardening Tips
- Direct sow Spinach, Radishes, Turnips straight into the garden — no transplanting needed.
- Count backwards from your first frost date to determine the last safe date for starting fall crops.
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