What should I plant in September in Jacksonville, FL?

In September in Jacksonville, FL (zone 9a), you can plant Chives, Dill, Lavender, Mint, Oregano, and more. These dates are based on local climate data for your area.

When do I plant Chives in Jacksonville, FL?

In Jacksonville, FL (zone 9a), Chives: start seeds indoors Jan 1 – Dec 31, transplant outdoors Jan 1 – Dec 31.

When do I plant Dill in Jacksonville, FL?

In Jacksonville, FL (zone 9a), Dill: direct sow Feb 8 – Oct 23.

When do I plant Lavender in Jacksonville, FL?

In Jacksonville, FL (zone 9a), Lavender: start seeds indoors Jan 1 – Dec 31, transplant outdoors Jan 1 – Dec 31.

What to Plant in September

Jacksonville, FL · Zone 9a

Last frost: Feb 15 Frost-free days: 293

Full year calendar for Jacksonville

The fall growing season is in full swing. Transplant brassicas and direct sow greens, root vegetables, and herbs that thrive in cooler temperatures.

September at a Glance

Indoor Transplant Direct Sow

1 5 10 15 20 25

Chives

Dill

Lavender

Mint

Oregano

Parsley

Rosemary

Sage

Thyme

Artichoke

Beet

Broccoli

Brussels Sprouts

Cabbage

Carrot

Cauliflower

Celery

Garlic

Kale

Leek

Lettuce

Onion

Potato

Strawberry

Sunflower

Swiss Chard

Turnip

Start Indoors 21

Start these seeds indoors under grow lights or on a sunny windowsill.

Plant now

Chives

Jan 1 – Dec 31

9 per sq ft 60–90 days

Lavender

Jan 1 – Dec 31

1 per sq ft 90–120 days

Mint

Jan 1 – Dec 31

4 per sq ft 60–90 days

Oregano

Jan 1 – Dec 31

1 per sq ft 60–90 days

Rosemary

Jan 1 – Dec 31

1 per sq ft 80–120 days

Sage

Jan 1 – Dec 31

1 per sq ft 75–90 days

Thyme

Jan 1 – Dec 31

4 per sq ft 70–90 days

Artichoke

Jan 1 – Dec 31

1 per sq ft 85–100 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

Sunflower

Jan 1 – Dec 31

1 per sq ft 70–100 days

Brussels Sprouts

May 24 – Dec 31

1 per sq ft 80–110 days

Parsley

Jun 16 – Dec 31

4 per sq ft 70–90 days

Celery

Jul 9 – Dec 31

4 per sq ft 80–120 days

Kale

Jul 9 – Dec 31

1 per sq ft 50–65 days

Swiss Chard

Jul 24 – Dec 31

4 per sq ft 50–60 days

Broccoli

Aug 9 – Dec 31

1 per sq ft 60–100 days

Cabbage

Aug 9 – Dec 31

1 per sq ft 70–100 days

Cauliflower

Aug 9 – Dec 31

1 per sq ft 55–100 days

Later this month

Lettuce

Sep 24 – Dec 31

4 per sq ft 45–60 days

Transplant 15

Move these seedlings from indoors to your garden beds.

Chives

Jan 1 – Dec 31

9 per sq ft 60–90 days

Lavender

Jan 1 – Dec 31

1 per sq ft 90–120 days

Mint

Jan 1 – Dec 31

4 per sq ft 60–90 days

Oregano

Jan 1 – Dec 31

1 per sq ft 60–90 days

Rosemary

Jan 1 – Dec 31

1 per sq ft 80–120 days

Sage

Jan 1 – Dec 31

1 per sq ft 75–90 days

Thyme

Jan 1 – Dec 31

4 per sq ft 70–90 days

Artichoke

Jan 1 – Dec 31

1 per sq ft 85–100 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

Sunflower

Jan 1 – Dec 31

1 per sq ft 70–100 days

Parsley

Aug 24 – Dec 31

4 per sq ft 70–90 days

Kale

Aug 24 – Dec 31

1 per sq ft 50–65 days

Swiss Chard

Aug 24 – Dec 31

4 per sq ft 50–60 days

Direct Sow 6

Plant these seeds directly into the soil outdoors.

Carrot

Jan 1 – Dec 31

16 per sq ft 70–80 days

Garlic

Jan 1 – Dec 31

9 per sq ft 180–240 days

Potato

Jan 1 – Dec 31

1 per sq ft 70–150 days

Dill

Feb 8 – Oct 23

4 per sq ft 40–60 days

Beet

Aug 24 – Dec 31

9 per sq ft 50–70 days

Turnip

Aug 24 – Dec 31

9 per sq ft 30–60 days

September Gardening Tips

Start Lettuce, Broccoli, Cabbage indoors now to give them a head start before transplanting outside.
Kale, Strawberry, Sunflower can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
Direct sow Carrot, Potato, 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.