Sunflowers Planting Dates in Texas

Usual sunflowers planting and harvest periods in Texas, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.

Sunflowers dates in Texas
Activity	Window	Source	Last verified
Planting	Apr 5 to Jul 15 usual (most active May 1 to Jul 4)	source	2026-11-11
Harvest	Aug 20 to Dec 3 usual (most active Sep 1 to Nov 21)	source	2026-11-11

Sunflowers calendar for Texas
Item	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Planting				Planting window in April	Planting window, most active in May	Planting window, most active in June	Planting window, most active in July
Harvest								Harvest window in August	Harvest window, most active in September	Harvest window, most active in October	Harvest window, most active in November	Harvest window in December

What these dates mean in Texas

Planting usually runs about 102 days, from Apr 5 to Jul 15.

That start date is about 39 days earlier than the middle of the 9 places in this data set that report sunflowers planting dates (May 14).

Harvest usually runs about 106 days, from Aug 20 to Dec 3.

From the start of the planting window to the start of the harvest window is about 137 days in Texas, a rough guide to how long the crop occupies the bed or field.

Frost-date caveat: these are published ranges for Texas. A northern or high-elevation site will run later than a southern or low one, and a cold wet spring can push planting past the window. Frost dates and local conditions vary; NASS state-level usual dates from 20-year progress data (Oct 2010 edition), begin ~5% and end ~95% complete. Check your last spring frost and soil temperature, and confirm with your county extension office.

Related guides

Sunflowers dates in other places

Other crops in Texas

Last reviewed: November 2026. Source: USDA NASS, Field Crops Usual Planting and Harvesting Dates (October 2010 edition, copy hosted by Cornell University Mann Library). Dates are the usual start and end of the period when about 5% to 95% of the crop is planted or harvested, from long-run state progress data. They are historic averages, not a forecast.