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.
- A cool-weather run is available before sustained heat.
- The bed drains well and can be kept evenly moist while roots establish.
- For a fall crop, the maturity period fits before the local freeze pattern.
Method changes timing
How to start broccoli
Transplants shorten outdoor exposure; direct seed only when the seed zone and forecast stay cool enough for establishment.
Choose spring or fall first
Do not merge the two countbacks. Spring starts from the frost-free date; fall starts from the first freeze.
Match the establishment method
Use a healthy transplant for a shorter outdoor timeline, or direct seed only when the temperature window supports germination.
Keep the growing point unstressed
Broccoli responds poorly to early moisture and temperature stress, so postpone if the bed cannot be kept steadily moist.
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.
Spring is warming quickly
Use the earlier side of the window
Broccoli needs enough cool growth before hot weather pushes the crop out of its preferred conditions.Fall start is late
Check the last optimum regional date
A date inside the broad countback can still be too late for a slow variety or a cold northern location.Why this answer is shaped this way
The regional date is not the whole season
The fall guide supplies an average planting anchor, while the home guide supplies a wider freeze-based planning range. Keep both: the date makes the region usable and the countback tests whether the chosen variety still fits.