What to Plant in March
USDA Zone 8a
Last frost: Mar 1 – Mar 15
Frost-free days: 220–250
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
Cilantro
Dill
Parsley
Rosemary
Thyme
Oregano
Sage
Mint
Lavender
Tomatoes
Peppers
Eggplant
Broccoli
Cauliflower
Cabbage
Brussels Sprouts
Kale
Lettuce
Spinach
Beans (bush)
Beans (pole)
Cucumbers
Summer Squash
Winter Squash
Corn
Carrots
Beets
Radishes
Onions (sets)
Potatoes
Okra
Collards
Start Indoors 3
Start these seeds indoors under grow lights or on a sunny windowsill.
Cucumbers
Feb 15 – Mar 1
2 per sq ft
50–70 days
Summer Squash
Feb 15 – Mar 1
Winter Squash
Feb 15 – Mar 1
Transplant 22
Move these seedlings from indoors to your garden beds.
Plant now
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
Sage
Jan 1 – Dec 31
1 per sq ft
75–90 days
Parsley
Feb 15 – Mar 1
4 per sq ft
70–90 days
Broccoli
Feb 15 – Mar 1
1 per sq ft
60–100 days
Cauliflower
Feb 15 – Mar 1
1 per sq ft
55–100 days
Cabbage
Feb 15 – Mar 1
1 per sq ft
70–100 days
Brussels Sprouts
Feb 15 – Mar 15
1 per sq ft
80–110 days
Kale
Feb 15 – Mar 1
1 per sq ft
50–65 days
Lettuce
Feb 15 – Mar 1
4 per sq ft
45–60 days
Collards
Feb 15 – Mar 1
Mint
Mar 1–8
4 per sq ft
60–90 days
Lavender
Mar 1 – Apr 1
1 per sq ft
90–120 days
Tomatoes
Mar 15 – Apr 1
1 per sq ft
65–80 days
Later this month
Basil
Mar 20 – Apr 5
4 per sq ft
25–35 days
Peppers
Mar 20 – Apr 5
1 per sq ft
60–100 days
Cucumbers
Mar 20 – Apr 5
2 per sq ft
50–70 days
Summer Squash
Mar 20 – Apr 5
Winter Squash
Mar 20 – Apr 5
Eggplant
Mar 25 – Apr 10
1 per sq ft
70–90 days
Okra
Mar 25 – Apr 10
1 per sq ft
50–65 days
Direct Sow 17
Plant these seeds directly into the soil outdoors.
Plant now
Cilantro
Feb 1 – Mar 1
9 per sq ft
30–45 days
Lettuce
Feb 1 – Mar 15
4 per sq ft
45–60 days
Spinach
Feb 1 – Mar 1
9 per sq ft
35–50 days
Carrots
Feb 1 – Sep 1
16 per sq ft
70–80 days
Beets
Feb 1 – Apr 1
9 per sq ft
50–70 days
Radishes
Feb 1 – Nov 1
16 per sq ft
22–30 days
Onions (sets)
Feb 1 – Mar 1
9 per sq ft
100–120 days
Kale
Feb 15 – Mar 1
1 per sq ft
50–65 days
Potatoes
Feb 15 – Mar 15
1 per sq ft
70–150 days
Dill
Mar 1 – Apr 15
4 per sq ft
40–60 days
Mint
Mar 1–8
4 per sq ft
60–90 days
Beans (bush)
Mar 15 – Aug 1
9 per sq ft
50–60 days
Beans (pole)
Mar 15 – Jul 1
Corn
Mar 15 – Jul 15
1 per sq ft
60–100 days
Later this month
Cucumbers
Mar 20 – Jul 1
2 per sq ft
50–70 days
Summer Squash
Mar 20 – Jul 1
Winter Squash
Mar 20 – May 1
March Gardening Tips
- Start Cucumbers, Summer Squash, Winter Squash indoors now to give them a head start before transplanting outside.
- Lettuce, Broccoli, Cabbage can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
- Direct sow Corn, Lettuce, Kale straight into the garden — no transplanting needed.
- Add compost to beds now so nutrients are available when planting time arrives.
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