What to Plant in September
Birmingham, AL · Zone 7b
Last frost: Mar 25
Frost-free days: 230
The first frost is approaching. Finish up fall plantings and protect tender crops. Garlic goes in the ground this month or next. Harvest and preserve summer bounty.
September at a Glance
Indoor
Transplant
Direct Sow
1
5
10
15
20
25
Chives
Dill
Mint
Parsley
Artichoke
Beet
Broccoli
Brussels Sprouts
Cabbage
Carrot
Cauliflower
Garlic
Kale
Leek
Lettuce
Onion
Peas
Spinach
Strawberry
Swiss Chard
Turnip
Start Indoors 11
Start these seeds indoors under grow lights or on a sunny windowsill.
Chives
Jan 1 – Dec 31
9 per sq ft
60–90 days
Mint
Jan 1 – Dec 31
4 per sq ft
60–90 days
Parsley
Jan 1 – Dec 31
4 per sq ft
70–90 days
Kale
Jan 1 – Sep 8
1 per sq ft
50–65 days
Leek
Jan 1 – Dec 31
4 per sq ft
90–150 days
Onion
Jan 1 – Dec 31
9 per sq ft
100–120 days
Strawberry
Jan 1 – Dec 31
4 per sq ft
60–90 days
Swiss Chard
Jan 1 – Dec 31
4 per sq ft
50–60 days
Brussels Sprouts
Sep 1 – Dec 31
1 per sq ft
80–110 days
Lettuce
Sep 9 – Dec 31
4 per sq ft
45–60 days
Spinach
Sep 9 – Dec 31
9 per sq ft
35–50 days
Transplant 13
Move these seedlings from indoors to your garden beds.
Plant now
Chives
Jan 1 – Dec 31
9 per sq ft
60–90 days
Mint
Jan 1 – Dec 31
4 per sq ft
60–90 days
Parsley
Jan 1 – Dec 31
4 per sq ft
70–90 days
Kale
Jan 1 – Oct 23
1 per sq ft
50–65 days
Leek
Jan 1 – Dec 31
4 per sq ft
90–150 days
Onion
Jan 1 – Dec 31
9 per sq ft
100–120 days
Strawberry
Jan 1 – Dec 31
4 per sq ft
60–90 days
Swiss Chard
Jan 1 – Dec 31
4 per sq ft
50–60 days
Artichoke
Feb 1 – Sep 8
1 per sq ft
85–100 days
Later this month
Broccoli
Sep 16 – Jan 8
1 per sq ft
60–100 days
Brussels Sprouts
Sep 16 – Dec 31
1 per sq ft
80–110 days
Cabbage
Sep 16 – Jan 8
1 per sq ft
70–100 days
Cauliflower
Sep 16 – Jan 8
1 per sq ft
55–100 days
Direct Sow 6
Plant these seeds directly into the soil outdoors.
Plant now
Beet
Jan 1 – Dec 31
9 per sq ft
50–70 days
Carrot
Jan 1 – Dec 31
16 per sq ft
70–80 days
Garlic
Jan 1 – Nov 23
9 per sq ft
180–240 days
Turnip
Jan 1 – Dec 31
9 per sq ft
30–60 days
Dill
Mar 24 – Sep 8
4 per sq ft
40–60 days
Later this month
Peas
Sep 24 – Dec 31
8 per sq ft
55–70 days
September Gardening Tips
- Start Lettuce, Kale, Spinach indoors now to give them a head start before transplanting outside.
- Broccoli, Cabbage, Kale can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
- Direct sow Carrot, Peas, Garlic straight into the garden — no transplanting needed.
- Protect tender crops from early frost with row cover — this can extend your season by several weeks.
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