Seasonal Lawn Care Calendar for Spring TX: Month-by-Month Guide
A lawn in Spring, TX does not need the same care in February that it needs in July. The warm-season grasses that dominate North Houston yards cycle through active growth, peak stress, and dormancy in a pattern that dictates what work needs to happen and when. Getting the timing right is the difference between a lawn that looks good all year and one that recovers from problems all year.
Exo Services serves homeowners across Spring TX with year-round lawn care programs. This calendar covers what needs to happen each season and why the timing matters.
Spring Tasks: March through May
Spring is the highest-leverage season for lawn care in the Houston area. The decisions made in March and April determine how the lawn performs through summer.
Pre-emergent herbicide (late February to mid-March). The most important single application of the year. Pre-emergent needs to go down before soil temperatures hit 55 degrees, which is when crabgrass seeds begin to germinate. Miss this window and you are dealing with crabgrass reactively all summer.
Scalp and clean up (early March). Warm-season grasses come out of winter dormancy looking ragged. A hard scalping cut, removing the brown winter blade layer, removes thatch buildup and clears the way for green growth to emerge cleanly. This is also a good time to edge bed lines and define borders before growth accelerates.
First fertilization of the year (mid to late March). Apply a balanced fertilizer after the last freeze risk has passed and green-up has begun. A slow-release nitrogen source is preferable for spring application to avoid pushing excessive growth that the root system cannot support yet.
Aeration (April to May). Core aeration in late spring breaks up the winter-compacted clay soil and opens channels for water and nutrients heading into summer. Pair with a follow-up fertilization for best results.
Irrigation system startup and check (April). Before the heat hits, run each irrigation zone manually and check for broken heads, coverage gaps, and controller accuracy. Adjust schedules for spring conditions before switching to summer programming.
Summer Tasks: June through August
Summer in Spring TX is lawn maintenance mode. The goal is holding what you built in spring without creating additional problems through the heat.
Watering schedule and depth (June through August). Warm-season grasses need approximately one to one and a half inches of water per week during summer peak. Watering should happen early morning (5 to 7 AM) to minimize evaporation and allow foliage to dry before evening, which reduces fungal disease pressure. Deep, infrequent watering (two to three sessions per week at longer duration) develops deeper root systems than daily shallow watering.
Mowing height adjustment. During summer heat, raise the mowing deck slightly above your spring setting. Taller turf provides self-shading at the soil surface, which reduces moisture evaporation and keeps roots cooler. Never remove more than one-third of the blade height in a single mowing.
Weed control (June through August). Post-emergent spot treatments for nutsedge and any broadleaf weeds that broke through the pre-emergent. Avoid broadcast herbicide applications during peak summer heat, which stresses already-hot turf. Targeted spot treatment is the better approach in July and August.
Watch for chinch bug activity. Chinch bugs are a significant pest in St. Augustine lawns in the Houston area and peak during hot, dry summer conditions. They feed on grass at the soil surface, creating irregular brown patches that look like drought stress. If your lawn is browning in small irregular patches despite adequate watering, suspect chinch bugs before increasing irrigation.
Fall Prep: September and October
Fall is underused by most homeowners but critically important for how the lawn enters and exits dormancy.
Second pre-emergent application (mid-September to October). A fall pre-emergent targets winter annual weeds including chickweed, henbit, and annual bluegrass. These germinate in fall and spend the winter established in your lawn, ready to spread aggressively in early spring. The fall pre-emergent window is as important as the spring one.
Fall fertilization (October). A potassium-rich fertilizer in fall strengthens root systems and improves cold hardiness before dormancy. This is not a growth-push fertilization. It is a root-strengthening application that carries the lawn through winter and sets up spring green-up.
Irrigation schedule reduction (October). As temperatures drop and rainfall increases in fall, reduce irrigation run times significantly. Overwatering in fall when the lawn is reducing its water demand creates conditions for disease and root issues. Adjust your controller schedule in October and again in November.
Clean up and edge work (October). Address any areas that need attention before dormancy. Fill bare spots, address drainage problems, and define edges while the lawn is still accessible and workable.
Winter Dormancy: November through February
Warm-season grasses in the Spring TX area go dormant in winter, turning tan or brown. This is normal and not a sign of a dead lawn. Dormancy is the grass conserving resources through cooler temperatures.
Reduce or stop irrigation. Dormant grass needs minimal water. In most Houston-area winters, rainfall is sufficient. Running irrigation on dormant turf wastes water and can promote fungal issues in the thatch layer.
Avoid heavy traffic on dormant turf. Dormant grass is more fragile than actively growing grass. Heavy or repeated foot traffic on dormant turf can damage crown tissue that the grass needs to re-emerge in spring.
Scout for issues. Winter is a good time to identify problem areas: low spots that hold water, sections that did not recover well from summer stress, areas with heavy thatch that will need attention in spring.
Prepare for spring pre-emergent timing. The spring pre-emergent window arrives earlier in South Texas than most homeowners expect. Mark mid-February on your calendar as the start of the window and plan accordingly.
Why Professional Lawn Care Outperforms DIY Year-Round
The seasonal calendar above is accurate. The reason most homeowners struggle to execute it is that timing-critical tasks require attention on specific windows, not when the schedule allows. Pre-emergent missed by two weeks means a summer of crabgrass. Fall fertilization done in December instead of October means a lawn that enters winter nutritionally deficient.
A professional lawn care program runs on the calendar, not on availability. Service visits are scheduled to match the treatment windows, not slotted in when the homeowner has a free Saturday.
Exo Services builds customized year-round programs for Spring TX properties based on your grass type, soil conditions, and history. The goal is a lawn that stays healthy across all four seasons without requiring constant reactive intervention.
See our full landscaping services or contact us to discuss a program for your property. Call us at (832) 819-4442 and we will walk through what your lawn needs based on where it is right now.