When Does Grass Stop Growing in Oklahoma?
In Oklahoma, warm-season grasses like Bermuda and Zoysia stop growing when soil temperatures drop below 50°F, typically in mid-to-late November. Cool-season grasses like fescue continue growing much later, slowing only when temperatures stay consistently below 40°F. Understanding when your grass stops growing helps you plan final mowing, fertilization timing, and winter preparation. Complete Lawn Care has tracked Oklahoma grass growth patterns for 25 years, and we know exactly when to adjust our treatment schedules for local conditions.
Bermuda Grass: The Most Common Oklahoma Lawn
Growth slows when daytime temperatures consistently drop below 70°F, usually in early October.
Growth stops when soil temperatures reach 50°F, typically mid-November in the Tulsa area.
Dormancy begins: Bermuda turns brown/tan after the first hard freeze. This is normal and doesn't mean the grass is dead.
Spring green-up: Bermuda remains dormant until soil temperatures reach 65°F consistently, usually mid-April to early May.
Zoysia Grass
Growth slows: Similar timing to Bermuda, early to mid-October.
Growth stops when soil temperatures hit 50°F in mid-November.
Dormancy: Zoysia turns golden-tan in winter. It typically goes dormant slightly later than Bermuda and greens up slightly earlier in spring.
Fescue Grass (Cool-Season)
Fall growth: Fescue actually thrives in fall. Its peak growing season is September through November.
Growth slows when temperatures drop below 50°F consistently, usually in December.
Growth stops when temperatures stay below 40°F. Fescue remains green but dormant through winter.
Winter activity: Fescue may grow on mild winter days when temperatures rise above 50°F.
How to Know When Your Grass Has Stopped Growing
Mowing frequency: If you're not seeing clippings between mowings, growth has essentially stopped.
Color change: Warm-season grasses turn brown/tan as they go dormant.
Soil temperature: Use a soil thermometer at 4-inch depth. Below 50°F means warm-season grasses have stopped.
Lawn Care Timing Based on Growth Patterns
Final mowing: Continue mowing until growth stops. Don't scalp for the final cut.
Last fertilizer for warm season: Apply by early October while grass can still use nutrients.
Fall fertilizer for fescue: Apply through November to feed actively growing roots.
Pre-emergent: Fall pre-emergent can be applied after growth slows to prevent winter weeds.
Irrigation winterization: Blow out lines before the first hard freeze (typically early to mid-November).
Grass growth in Oklahoma: common questions
What month does grass stop growing in Oklahoma?
When does Bermuda grass go dormant in Oklahoma?
When does mowing season end in Oklahoma?
At what temperature does grass stop growing?
When should I winterize my sprinkler system in Oklahoma?
Complete Lawn Care Knows Oklahoma Timing
For 25 years, Complete Lawn Care has tracked Oklahoma's seasonal patterns and adjusted our services accordingly. Our 7-step program times treatments for maximum effectiveness based on actual growing conditions, not arbitrary calendar dates. We monitor soil temperatures, weather patterns, and grass response to ensure every application counts. Trust our quarter-century of local experience to care for your lawn through every season.
Contact Complete Lawn. Care:
Phone: (918) 605-4646 | Email: wecare@completelawncaretulsa.com | Online: completelawncaretulsa.com/get-a-quote
