What should I plant in September in Sioux Falls, SD?

In September in Sioux Falls, SD (zone 4b), you can plant Cilantro, Radish, Turnip, and more. These dates are based on local climate data for your area.

When do I plant Cilantro in Sioux Falls, SD?

In Sioux Falls, SD (zone 4b), Cilantro: direct sow Apr 1 – Jun 8 and Sep 1 – Sep 23.

When do I plant Radish in Sioux Falls, SD?

In Sioux Falls, SD (zone 4b), Radish: direct sow Mar 24 – Jun 8 and Sep 1 – Sep 30.

When do I plant Turnip in Sioux Falls, SD?

In Sioux Falls, SD (zone 4b), Turnip: direct sow Apr 1 – Sep 15.

What to Plant in September

Sioux Falls, SD · Zone 4b

Last frost: May 10 Frost-free days: 143

Full year calendar for Sioux Falls

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

Cilantro

Radish

Turnip

Direct Sow 3

Plant these seeds directly into the soil outdoors.

Turnip

Apr 1 – Sep 15

9 per sq ft 30–60 days

Cilantro

Sep 1–23

9 per sq ft 30–45 days

Radish

Sep 1–30

16 per sq ft 22–30 days

September Gardening Tips

Direct sow Radish, Turnip, Cilantro straight into the garden — no transplanting needed.
Protect tender crops from early frost with row cover — this can extend your season by several weeks.

Nearby Cities

Omaha NE · Zone 5b Minneapolis MN · Zone 4b Des Moines IA · Zone 5b Fargo ND · Zone 4a Kansas City MO · Zone 6a Madison WI · Zone 5a

Related Guides

Spacing Chart

How many plants per square foot

4×8 Raised Bed Layout

Planting plans for a standard bed

Planting Calendar

When to plant for your zone

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