What to Plant in April
USDA Zone 10a
Last frost: Jan 15 – Feb 1
Frost-free days: 300–365
It's prime planting season — the soil is warm and frost is behind you. Most warm-season crops can go directly into the ground now. Succession-plant fast crops for continuous harvest.
April at a Glance
Indoor
Transplant
Direct Sow
1
5
10
15
20
25
Basil
Rosemary
Thyme
Oregano
Mint
Lemongrass
Beans (bush)
Cucumbers
Summer Squash
Corn
Sweet Potatoes
Okra
Tropical Crops
Transplant 8
Move these seedlings from indoors to your garden beds.
Basil
Jan 1 – Dec 31
4 per sq ft
25–35 days
Rosemary
Jan 1 – Dec 31
1 per sq ft
80–120 days
Thyme
Jan 1 – Dec 31
4 per sq ft
70–90 days
Oregano
Jan 1 – Dec 31
1 per sq ft
60–90 days
Mint
Jan 1 – Dec 31
4 per sq ft
60–90 days
Lemongrass
Jan 1 – Dec 31
Tropical Crops
Jan 1 – Dec 31
Sweet Potatoes
Mar 1 – Jun 1
1 per sq ft
90–120 days
Direct Sow 8
Plant these seeds directly into the soil outdoors.
Basil
Jan 1 – Dec 31
4 per sq ft
25–35 days
Mint
Jan 1 – Dec 31
4 per sq ft
60–90 days
Tropical Crops
Jan 1 – Dec 31
Beans (bush)
Feb 1 – Apr 1
9 per sq ft
50–60 days
Corn
Feb 1 – Apr 1
1 per sq ft
60–100 days
Cucumbers
Feb 15 – Apr 1
2 per sq ft
50–70 days
Summer Squash
Feb 15 – Apr 1
Okra
Mar 1 – Jul 1
1 per sq ft
50–65 days
April Gardening Tips
- Sweet Potatoes, Basil, Rosemary can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
- Direct sow Corn, Basil, Mint straight into the garden — no transplanting needed.
- Soil temperature matters more than air temperature for germination. Use a soil thermometer before direct sowing.
Ready to plan your garden?
Add these crops to your garden plan and get personalized planting reminders for Zone 10a.
Start Planning Free