What Colorado Homeowners Should Be Doing for Their Lawn in June
June is when Colorado lawns officially transition into summer mode. Temperatures start climbing, irrigation systems work overtime, weeds become more aggressive, and lawns can quickly become stressed if they aren’t maintained properly.
The work you do in June helps set the tone for the rest of the summer. A few simple adjustments now can help prevent brown patches, weed problems, and heat stress later in the season.
At Mile High Grass Cuts, we help homeowners keep their lawns healthy through Colorado’s unpredictable summer conditions. Here’s your June lawn care checklist for Colorado.
June Lawn Care Checklist for Colorado Homeowners
1. Raise Your Mowing Height
One of the biggest mistakes homeowners make in early summer is cutting their grass too short.
As temperatures rise, taller grass helps:
Shade the soil
Retain moisture
Protect roots from heat stress
Reduce weed growth
Improve drought resistance
Recommended mowing height:
For most Colorado lawns, keep grass around:
3 to 4 inches tall during summer
Scalping the lawn may make it look neat temporarily, but it often leads to:
Brown patches
Weak roots
Faster drying
More weeds
Summer lawn care in Denver and throughout Colorado is all about helping grass survive heat, not forcing ultra-short growth.
2. Adjust Your Watering Schedule
Colorado’s dry climate means June is usually when lawns begin needing more consistent watering.
General June watering recommendations:
Water deeply 2–4 times per week
Aim for early morning watering
Avoid shallow daily watering
The goal is deep root growth. Lawns watered lightly every day often develop weaker roots and struggle more during extreme heat.
Best watering time:
Between 4 AM and 9 AM
Morning watering reduces evaporation and lowers the risk of lawn disease.
3. Check Your Irrigation System
June is the perfect time to inspect your sprinkler system before peak summer heat arrives.
Look for:
Broken sprinkler heads
Uneven coverage
Overspray onto sidewalks
Dry spots
Pooling water
Leaks
A poorly adjusted irrigation system can waste a huge amount of water and create stressed or patchy areas in your lawn.
Even healthy lawns can develop brown spots simply because certain areas are not receiving enough coverage.
4. Stay Ahead of Weeds
Weeds become much more aggressive once temperatures warm up consistently.
Common Colorado lawn weeds in June:
Dandelions
Crabgrass
Thistle
Clover
Bindweed
Healthy grass is one of the best forms of weed prevention. Thick, properly watered lawns naturally crowd out many weeds before they spread.
June weed control tips:
Mow consistently
Avoid cutting grass too short
Spot-treat weeds early
Maintain healthy lawn density
Catching weeds early in summer prevents much larger problems later in the season.
5. Watch for Heat Stress
Colorado lawns can experience serious stress during sudden heat waves.
Signs of heat stress:
Brown patches
Wilted appearance
Bluish-gray tint
Footprints staying visible
Dry or crunchy grass
Heat stress does not always mean your lawn is dead. Often, lawns simply need adjustments to watering, mowing, or irrigation timing.
Preventing heat stress:
Raise mowing height
Water deeply
Avoid mowing during peak afternoon heat
Keep mower blades sharp
Limit heavy foot traffic during extreme heat
6. Be Careful With Fertilizer Timing
June fertilization depends on your lawn’s condition and what treatments were already applied earlier in spring.
Over-fertilizing during hot weather can:
Burn grass
Increase stress
Encourage excessive growth
Raise water demand
If fertilizing in June:
Use slow-release products when appropriate
Avoid applying during extreme heat
Water properly afterward
Not every lawn needs heavy summer fertilization. In many Colorado lawns, healthy watering and mowing practices matter more during June.
7. Address Pet Damage Early
Pet urine spots become much more noticeable during hot summer weather.
Common signs:
Small yellow or brown circles
Dark green rings around damaged spots
Tips to reduce pet damage:
Water areas after pets use the lawn
Keep grass healthy and hydrated
Reseed damaged areas as needed
Lawns already stressed from heat and drought are often more vulnerable to pet damage.
8. Keep Lawn Equipment Sharp and Clean
Dull mower blades tear grass instead of cutting it cleanly.
This creates:
Frayed grass tips
Brown-looking lawns
Increased moisture loss
More stress during hot weather
Sharpen mower blades regularly throughout the summer season.
Final Thoughts
June lawn care in Colorado is all about preparation and consistency. Proper mowing, watering, irrigation checks, and weed prevention now can make a huge difference during the hottest parts of summer.
A healthy lawn heading into July is much more likely to stay green, thick, and resilient through Colorado’s dry summer conditions.
If you need help with mowing, lawn maintenance, or seasonal property care, Mile High Grass Cuts helps Colorado homeowners keep their lawns healthy all summer long.
Frequently Asked Questions
How often should I mow my lawn in June?
Most Colorado lawns need mowing about once per week during active summer growth.
What height should grass be cut in summer?
Generally, keeping grass around 3–4 inches tall helps reduce heat stress and retain moisture.
Should I fertilize my lawn in June?
Some lawns benefit from light summer fertilization, but over-fertilizing during hot weather can stress grass.
Why does my lawn look stressed even when I water it?
Heat stress, compacted soil, uneven irrigation coverage, dull mower blades, or shallow watering can all contribute to lawn problems.
What is the biggest lawn mistake homeowners make in summer?
Cutting grass too short and watering too frequently are two of the most common summer lawn care mistakes in Colorado.
Need help keeping your lawn healthy through Colorado’s summer heat? Contact Mile High Grass Cuts for recurring maintenance, weed control, and seasonal lawn services.