Garden Tempo

Texas, U.S. · outdoor planting

When to plant collard greens in Texas

Start spring collards about 2–6 weeks before the local frost-free date. For fall, use an 8–12 week countback from the first freeze; regional average dates move from August 1 in Region I to December 15 in Region V.

Choose the Texas timing rule
Spring
2–6 weeks before the local frost-free date
Based on your local frost-free date
Fall
8–12 weeks before the first freeze
Based on your local first freeze
Start with
Direct seed or transplant
Seed fits a longer window; transplants make the timing easier when heat or a late start compresses establishment.

Spring and fall are different calculations

Start with your local frost date

Texas is too large for one planting day. Spring timing is measured from the local average frost-free date. Fall timing is measured backward from the local first freeze, then checked against the Texas A&M regional anchor when one is published.

Spring rule

2–6 weeks before the local frost-free date

Use the frost-free date for your garden, not a statewide average.

Fall rule

8–12 weeks before the first freeze

Count backward from the local first freeze and leave room for establishment.

Texas A&M gardening regions

Regional planning anchors

Texas A&M divides the state into five gardening regions. The dates below are planning anchors, not boundaries that follow county lines and not promises about one exact garden.

Region I

Fall average: Aug 1

Northern Panhandle

Region II

Fall average: Aug 15

West Texas and the High Plains

Region III

Fall average: Oct 10

North, East and Central Texas

Region IV

Fall average: Oct 20

South Texas

Region V

Fall average: Dec 15

Lower Rio Grande Valley

Plant only when the crop is ready

The calendar is the first filter

A date can be inside the planning range and still be a poor planting day. Check the crop-specific conditions before committing seed or plants.

  • A cool-season run is available after establishment.
  • Seedlings can be watered through warm fall afternoons.
  • The variety and harvest plan fit the remaining frost-free time.

Method changes timing

How to start collard greens

Seed fits a longer window; transplants make the timing easier when heat or a late start compresses establishment.

Decide on seed or transplants

Use transplants when the calendar is tight; use direct seed when there is time for emergence and thinning.

Anchor fall to the region

The official regional dates shift sharply southward, so the Texas label alone is not actionable.

Plan a staged harvest

Choose whether you want baby leaves or mature plants because the time required before cold differs.

When the simple answer breaks

Early and late decisions

A usable planting page needs an action when weather, region or maturity no longer fits the headline range.

Planting for young leaves

A shorter runway may work

A baby-leaf harvest needs less time than a full-size plant, but the seed still needs a suitable establishment period.

Heat remains intense

Protect the establishment phase

Delay or use temporary protection rather than treating the average date as a command.

Why this answer is shaped this way

Harvest goal changes the late edge

The 8–12 week rule is a full-crop planning range. A leaf harvest may be earlier, but that does not justify inventing a second statewide date.