What to Plant in March
USDA Zone 7b
Last frost: Mar 15 – Apr 1
Frost-free days: 190–220
Spring is building momentum. Start tomatoes and peppers indoors if you haven't already. Cool-season crops like peas, spinach, and lettuce can go outdoors once the soil is workable.
March at a Glance
Indoor
Transplant
Direct Sow
1
5
10
15
20
25
Basil
Cilantro
Dill
Parsley
Chives
Mint
Broccoli
Cauliflower
Cabbage
Brussels Sprouts
Kale
Lettuce
Spinach
Peas
Cucumbers
Summer Squash
Winter Squash
Pumpkins
Carrots
Beets
Radishes
Turnips
Onions (sets)
Onions (seed)
Potatoes
Watermelon
Cantaloupe
Okra
Artichoke
Start Indoors 8
Start these seeds indoors under grow lights or on a sunny windowsill.
Basil
Feb 15 – Mar 1
4 per sq ft
25–35 days
Cucumbers
Mar 1–15
2 per sq ft
50–70 days
Summer Squash
Mar 1–15
Winter Squash
Mar 1–15
Pumpkins
Mar 1–15
¼ per sq ft
85–120 days
Watermelon
Mar 1–8
¼ per sq ft
70–90 days
Cantaloupe
Mar 1–8
Okra
Mar 1–8
1 per sq ft
50–65 days
Transplant 11
Move these seedlings from indoors to your garden beds.
Broccoli
Mar 1–15
1 per sq ft
60–100 days
Cauliflower
Mar 1–15
1 per sq ft
55–100 days
Cabbage
Mar 1–15
1 per sq ft
70–100 days
Kale
Mar 1–15
1 per sq ft
50–65 days
Lettuce
Mar 1–15
4 per sq ft
45–60 days
Onions (seed)
Mar 1–15
9 per sq ft
100–120 days
Parsley
Mar 15 – Apr 1
4 per sq ft
70–90 days
Chives
Mar 15 – Apr 1
9 per sq ft
60–90 days
Mint
Mar 15–22
4 per sq ft
60–90 days
Brussels Sprouts
Mar 15 – Apr 1
1 per sq ft
80–110 days
Artichoke
Mar 15 – Apr 1
1 per sq ft
85–100 days
Direct Sow 15
Plant these seeds directly into the soil outdoors.
Spinach
Feb 15 – Mar 15
9 per sq ft
35–50 days
Peas
Feb 15 – Mar 15
8 per sq ft
55–70 days
Carrots
Feb 15 – Aug 1
16 per sq ft
70–80 days
Beets
Feb 15 – Aug 1
9 per sq ft
50–70 days
Radishes
Feb 15 – Oct 1
16 per sq ft
22–30 days
Turnips
Feb 15 – Mar 15
9 per sq ft
30–60 days
Cilantro
Mar 1 – Apr 1
9 per sq ft
30–45 days
Kale
Mar 1–15
1 per sq ft
50–65 days
Lettuce
Mar 1 – Apr 1
4 per sq ft
45–60 days
Onions (sets)
Mar 1–15
9 per sq ft
100–120 days
Potatoes
Mar 1–15
1 per sq ft
70–150 days
Dill
Mar 15 – May 1
4 per sq ft
40–60 days
Parsley
Mar 15–22
4 per sq ft
70–90 days
Chives
Mar 15–22
9 per sq ft
60–90 days
Mint
Mar 15–22
4 per sq ft
60–90 days
March Gardening Tips
- Start Watermelon, Basil, Cucumbers 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 Lettuce, Peas, 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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