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
4–6 weeks before the local frost-free date
Use the frost-free date for your garden, not a statewide average.Fall rule
10–16 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: Jul 15
Northern PanhandleRegion II
Fall average: Aug 1
West Texas and the High PlainsRegion III
Fall average: Sep 1
North, East and Central TexasRegion IV
Fall average: Oct 1
South TexasRegion V
Fall average: Nov 1
Lower Rio Grande ValleyPlant 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.
- The crop can mature through cool weather rather than peak heat.
- The transplant is hardened to the conditions it will meet outdoors.
- Soil moisture can remain even during early root and head development.
Method changes timing
How to start cabbage
Transplants usually give a more predictable head-start; direct seeding needs a cool, evenly moist seed zone.
Select a maturity range
Cabbage varieties do not finish together; use the seed packet maturity time before choosing the late edge.
Choose seed or plants
A transplant reduces the time the crop must spend establishing outdoors and is the safer late-window choice.
Set at the right depth
Keep the root ball covered without burying the growing point, then water the transplant in promptly.
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.
Warm early fall
Do not force the average date
The regional date is a planning anchor; wait when heat would prevent a healthy start, but preserve enough time before the freeze.Very late start
Prefer a shorter-maturity cultivar
A shorter variety may fit where a long-season cabbage no longer has enough cool growing time.Why this answer is shaped this way
Cabbage tolerates frost but still needs time
Cold tolerance does not erase maturity. The useful decision combines the regional date, the 10–16 week fall countback and the variety’s actual days to harvest.