What should I plant in September in Oklahoma City, OK?

In September in Oklahoma City, OK (zone 7a), you can plant Parsley, Beet, Carrot, Garlic, Kale, and more. These dates are based on local climate data for your area.

When do I plant Parsley in Oklahoma City, OK?

In Oklahoma City, OK (zone 7a), Parsley: start seeds indoors Jan 1 – Apr 15 and Jun 16 – Jul 8 and Dec 9 – Dec 31, transplant outdoors Feb 15 – Jun 23 and Aug 24 – Sep 15.

When do I plant Beet in Oklahoma City, OK?

In Oklahoma City, OK (zone 7a), Beet: direct sow Feb 8 – Jun 23 and Aug 24 – Oct 8.

When do I plant Carrot in Oklahoma City, OK?

In Oklahoma City, OK (zone 7a), Carrot: direct sow Feb 15 – Jul 16 and Aug 9 – Sep 23.

What to Plant in September

Oklahoma City, OK · Zone 7a

Last frost: Mar 28 Frost-free days: 222

Full year calendar for Oklahoma City

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

Parsley

Beet

Carrot

Garlic

Kale

Lettuce

Spinach

Swiss Chard

Turnip

Start Indoors 3

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

Swiss Chard

Jul 24 – Sep 8

4 per sq ft 50–60 days

Lettuce

Sep 1–15

4 per sq ft 45–60 days

Spinach

Sep 9–30

9 per sq ft 35–50 days

Transplant 3

Move these seedlings from indoors to your garden beds.

Parsley

Aug 24 – Sep 15

4 per sq ft 70–90 days

Kale

Aug 24 – Sep 30

1 per sq ft 50–65 days

Swiss Chard

Aug 24 – Oct 8

4 per sq ft 50–60 days

Direct Sow 4

Plant these seeds directly into the soil outdoors.

Garlic

Jan 1 – Sep 23

9 per sq ft 180–240 days

Carrot

Aug 9 – Sep 23

16 per sq ft 70–80 days

Beet

Aug 24 – Oct 8

9 per sq ft 50–70 days

Turnip

Aug 24 – Oct 31

9 per sq ft 30–60 days

September Gardening Tips

Start Lettuce, Spinach, Swiss Chard indoors now to give them a head start before transplanting outside.
Kale, Parsley, Swiss Chard can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
Direct sow Carrot, Garlic, Beet straight into the garden — no transplanting needed.
Protect tender crops from early frost with row cover — this can extend your season by several weeks.