Lawn Care in Barrow, AK
Your complete lawn care guide for Barrow — USDA Zone 1a, cool-season grass recommendations, and a soil-temperature-driven schedule.
Current Conditions
Soil Temp (4" depth)
15°F
↗ Rising
Today's High
-5°F
Today's Low
-16°F
Best Grass Types for Barrow
Barrow Lawn Care Calendar
Round 1 — Early Spring Pre-Emergent
Soil temp reaches 55°F- Pre-Emergent Herbicide — Apply a pre-emergent herbicide (Prodiamine or Dithiopyr) to prevent crabgrass and other annual weeds as soil warms past 55°F. Do NOT apply if you plan to seed within 8-12 weeks.
Round 2 — Mid Spring
Soil temp reaches 65°F- Pre-Emergent (2nd Application) — Second split-app of pre-emergent as soil approaches 65°F. Extends crabgrass prevention through early summer.
- High-Nitrogen Fertilizer — First fertilizer of the season. Apply high-nitrogen to support spring green-up now that the grass is actively growing.
- Bio-Stimulant(optional) — Bio-stimulant (humic/fulvic acid, sea kelp) for root development and nutrient uptake.
Round 3 — Late Spring
28-35 days after previous round- Low-N / High-K Stress Fertilizer — Transition to a low-nitrogen, high-potassium fertilizer to harden turf for summer heat.
- Grub Preventative — Apply a preventative grub control (e.g. GrubEx / chlorantraniliprole) before grubs hatch. Best applied late spring when soil temps reach 60-70°F.
- Post-Emergent Broadleaf Herbicide(optional) — Spot-treat or blanket-spray broadleaf weeds (dandelions, clover, plantain) while they are actively growing in spring.
- Bio-Stimulant(optional) — Bio-stimulant to support root depth and stress tolerance.
- Moisture Manager(optional) — Optional wetting agent / moisture manager to improve water penetration.
Round 4 — Summer
28-42 days after previous round- Low-N / High-K Stress Fertilizer(optional) — Continue stress-blend fertilizer through the summer heat period.
- Surface Insect Control(optional) — Apply a surface insecticide (e.g. bifenthrin) to control armyworms, chinch bugs, sod webworms, and other surface-feeding pests.
- Bio-Stimulant(optional) — Bio-stimulant to maintain soil biology through heat stress.
Round 5 — Fall Renovation (Seeding)
Soil temp drops to 70°F- Starter Fertilizer — Apply a high-phosphorus starter fertilizer to support new seed establishment.
- Seed-Safe Pre-Emergent — Apply a seed-safe pre-emergent (e.g. mesotrione/tenacity) for weed suppression that won't harm new seedlings.
- Aerate & Overseed — Core aerate the lawn, then overseed with your chosen grass seed blend.
- Bio-Stimulant(optional) — Bio-stimulant to accelerate seed germination and root establishment.
Round 5 — Fall Recovery
Soil temp drops to 70°F- High-Nitrogen Fertilizer — Apply high-nitrogen fertilizer to promote fall recovery and thickening.
- Pre-Emergent (Fall) — Fall pre-emergent to prevent poa annua and other winter annual weeds.
- Post-Emergent Broadleaf Herbicide(optional) — Fall is the most effective time for broadleaf weed control. Spray weeds while they are pulling nutrients down to roots before winter.
- Bio-Stimulant(optional) — Bio-stimulant to support root growth during fall recovery.
Round 6 — Mid Fall
28-35 days after previous round- High-Nitrogen Fertilizer — High-nitrogen feed to maximize fall growth and carbohydrate storage.
- Bio-Stimulant(optional) — Bio-stimulant to support late-season root development.
Round 7 — Winterizer
Soil temp drops to 35-40°F- Winterizer Fertilizer — Final application of high-nitrogen + potassium fertilizer before dormancy to build winter hardiness and promote early spring green-up.
Frequently Asked Questions
When should I fertilize my lawn in Barrow, AK?
In Barrow (USDA Zone 1a), apply your first fertilizer when soil temperatures reach 55°F in early spring. The most important application is a winterizer in late fall when soil temps drop to 35-40°F.
What is the best grass for Barrow, AK?
Barrow is in USDA Zone 1a, a cool-season zone. Kentucky Bluegrass, Tall Fescue, and Perennial Ryegrass all perform well. A TTTF/KBG blend offers the best disease resistance and year-round color.
What USDA zone is Barrow, AK?
Barrow is in USDA Hardiness Zone 1a. This means the average annual minimum winter temperature ranges from varies by microclimate. This zone classification helps determine which grass types and planting schedules work best for your lawn.
When should I apply pre-emergent in Barrow?
In Barrow, apply pre-emergent herbicide when soil temperatures at 4" depth reach 55°F and are rising. A split application works best: half rate at 55°F, then the second half about 2–3 weeks later when soil reaches 65°F. This extends crabgrass prevention through early summer. Check the current soil temperature at the top of this page for real-time guidance.
Other Cities in Alaska
Get Your Personalized Barrow Lawn Plan
Map your lawn, get a custom fertilizer schedule based on real-time soil temperature in Barrow, and shop the exact products you need — all for free.
Get Started Free