What to Plant in March
USDA Zone 10b
Last frost: Jan 15 – Feb 1
Frost-free days: 300–365
Your last frost is behind you or nearly so. Warm-season crops can go in the ground soon. Direct sow beans, squash, and cucumbers as the soil warms up.
March at a Glance
Indoor
Transplant
Direct Sow
1
5
10
15
20
25
Basil
Rosemary
Thyme
Oregano
Mint
Lemongrass
Turmeric
Tomatoes
Peppers
Eggplant
Beans (bush)
Beans (pole)
Cucumbers
Summer Squash
Winter Squash
Corn
Carrots
Radishes
Sweet Potatoes
Watermelon
Okra
Tropical Crops
Malabar Spinach
Transplant 17
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
Tomatoes
Jan 15 – Mar 1
1 per sq ft
65–80 days
Peppers
Jan 15 – Mar 1
1 per sq ft
60–100 days
Eggplant
Jan 15 – Mar 1
1 per sq ft
70–90 days
Cucumbers
Feb 1 – Mar 15
2 per sq ft
50–70 days
Summer Squash
Feb 1 – Mar 15
Winter Squash
Feb 1 – Mar 1
Watermelon
Feb 15 – Mar 15
¼ per sq ft
70–90 days
Okra
Feb 15 – Mar 15
1 per sq ft
50–65 days
Turmeric
Mar 1–28
Sweet Potatoes
Mar 1 – Jun 1
1 per sq ft
90–120 days
Direct Sow 14
Plant these seeds directly into the soil outdoors.
Plant now
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
Beans (pole)
Feb 1 – Mar 15
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
Winter Squash
Feb 15 – Mar 15
Watermelon
Mar 1–8
¼ per sq ft
70–90 days
Okra
Mar 1 – Jul 1
1 per sq ft
50–65 days
Malabar Spinach
Mar 1–28
Later this month
Carrots
Sep 15 – Mar 1
16 per sq ft
70–80 days
Radishes
Oct 1 – Mar 1
16 per sq ft
22–30 days
March Gardening Tips
- Watermelon, Eggplant, Sweet Potatoes can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
- Direct sow Corn, Watermelon, Basil straight into the garden — no transplanting needed.
- Add compost to beds now so nutrients are available when planting time arrives.
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