How to Prepare Your Landscape for the Summer Heat
Spring in the Chicagoland area can feel like it disappears overnight. One week you are watching your perennials emerge from dormancy, and the next the temperatures have climbed and the soil is beginning to dry out. For homeowners who have invested in a beautiful landscape, that shift demands attention. Summer heat in Illinois is serious business, and the plantings, turf, and hardscape elements that look stunning in May can struggle by July if they have not been properly prepared.
At Bret-Mar Landscape, Inc., our licensed landscape architects and horticulture team work with homeowners across Homer Glen, Orland Park, Naperville, Lemont, and the surrounding Chicagoland communities to keep their properties looking exceptional year-round. This guide covers the most important steps to prepare your landscape for summer so that everything you have invested in continues to thrive through the hottest months of the year.
Understanding What Summer Heat Does to Your Landscape
Before diving into specific preparation strategies, it helps to understand the stresses that summer actually imposes on a landscape. Heat and drought stress affect plants differently depending on their species, placement, root establishment, and soil conditions. But the underlying challenges are consistent: moisture evaporates faster than plants can absorb it, soil compacts and loses its ability to hold water effectively, and plants under chronic moisture stress become more susceptible to disease, pest damage, and root decline.
Hardscape elements face different but equally real challenges. Patio surfaces exposed to full sun absorb and radiate heat that can damage adjacent plantings, affect how comfortable your outdoor living spaces are to use, and in some cases accelerate wear on the materials themselves.
Preparing thoughtfully across both the soft and hard elements of your landscape before peak heat arrives is the most effective way to protect your investment and maintain the beauty you have worked to create.
Related: How to Maintain Patios, Walkways, and Driveways for Long-Term Durability
Soil and Mulch Preparation
Healthy soil is the foundation of a summer-resilient landscape and mulch is one of the most powerful tools available for managing heat and moisture stress in planting beds.
Refreshing Mulch in Planting Beds
A fresh layer of mulch applied to planting beds in late spring provides multiple benefits that become critical during summer. Mulch insulates the soil against temperature extremes, keeping root zones significantly cooler than they would be in bare exposed soil. It slows moisture evaporation dramatically, reducing how often and how much supplemental watering is required. It also suppresses weed growth that competes with your plants for the water and nutrients they need most during periods of heat stress.
The ideal mulch depth for most planting beds is two to three inches. More than that can create conditions that impede water penetration and promote fungal issues. Less than that provides insufficient insulation and moisture retention. Keeping mulch pulled a few inches away from the base of shrubs and tree trunks prevents crown rot and pest harborage.
At Bret-Mar, our fine garden maintenance team uses premium materials and best horticultural practices to ensure your mulch application is done correctly and contributes to the long-term health of your plantings rather than simply covering the ground.
Soil Health and Organic Matter
Illinois's clay-heavy soils present ongoing challenges for drainage and aeration. Clay soils compact under summer heat and foot traffic, reducing the ability of roots to access oxygen and water even when moisture is present. Incorporating organic matter into planting beds over time improves soil structure, drainage, and the ability of the soil to sustain plants through stressful periods.
Plant Care and Pruning Before Peak Heat
Late spring and early summer are the ideal windows for specific pruning and plant care tasks that prepare your landscape for the months ahead.
Timing Pruning Strategically
Spring-blooming shrubs like lilac, forsythia, and viburnum should be pruned shortly after bloom before the heat sets in, as late pruning removes the buds forming for next year's flowers. Summer-blooming shrubs and perennials require a different approach. Deadheading and light shaping is done as needed throughout the season to encourage continued blooming without creating significant open wounds during peak heat that can stress the plant.
Our horticulture team at Bret-Mar prunes and cuts back perennials, ornamental grasses, and shrubs based on plant type, timing, and long-term health, not simply aesthetics. That distinction matters significantly in how plants perform through summer and into fall.
Monitoring Plant Health Early
Summer pest and disease pressure often begins building earlier than homeowners notice. Aphid infestations on new growth, powdery mildew on susceptible plants like phlox and monarda, and Japanese beetle feeding all begin appearing as temperatures rise. Catching these issues in late spring and early summer, before they become widespread, allows for targeted intervention that protects your plantings without broad chemical applications.
Early monitoring is a core part of our seasonal maintenance visits. Our team anticipates what is coming based on seasonal patterns and addresses issues with intention rather than reactivity.
Related: How Water Features and Pools Transform Outdoor Environments
Watering Systems and Deep Watering Habits
One of the most common mistakes homeowners make heading into summer is relying on the same watering habits that worked in spring. As temperatures rise and evaporation rates increase, both the frequency and depth of watering need to adjust.
Deep Watering Over Frequent Shallow Watering
Shallow, frequent watering encourages surface root development, which makes plants more vulnerable to heat and drought because surface roots dry out fastest. Deep, less frequent watering encourages roots to follow moisture deeper into the soil, where temperatures are cooler and moisture is more consistent. For established shrubs and perennials, watering deeply every few days during dry spells is far more effective than a light daily sprinkle.
For newly installed plant material, more consistent moisture is essential. New plants have not yet established the root systems that allow them to buffer against moisture stress, making their first summer in the ground their most vulnerable.
Checking and Adjusting Irrigation
If your property has an irrigation system, late spring is the ideal time to verify that heads are functioning correctly, coverage is uniform, and zones are programmed for summer demand rather than spring patterns. A system that was calibrated for cool, moist conditions can leave plants under-watered when temperatures spike in July and August.
Hardscape Care Before Summer
Your patio, walkways, and outdoor living features deserve attention before peak summer use begins as well.
Inspecting Paver Joints and Surfaces
Winter freeze-thaw cycles in Illinois are strenuous on hardscape surfaces, and the damage they cause often becomes fully apparent as temperatures warm. Inspecting paver joints for erosion or cracking, checking for shifted or sunken sections, and addressing any issues now prevents small problems from becoming larger ones during the season when you are using your outdoor spaces most.
Our team at Bret-Mar provides expert hardscape inspection and repair, backed by our two-year base warranty on hardscape and our status as a Unilock Authorized Contractor. Catching and addressing issues early is almost always simpler and more affordable than reactive repair after a season of continued use.
Preparing Outdoor Living Spaces for Seasonal Use
Summer is when patios, pergolas, and outdoor kitchens earn their keep. Making sure furniture is cleaned and positioned, outdoor lighting is functioning, and any seasonal plantings in containers are in place before the entertaining season begins means you can enjoy your outdoor spaces from the first warm weekend rather than spending those days getting organized.
Related: Garden Maintenance Tips to Keep Your Landscape Looking Its Best
Professional Summer Landscape Care With Bret-Mar
Preparing your landscape for summer requires knowledge of your specific plants, soil conditions, and design intent. That is why working with a team that genuinely understands your property makes such a meaningful difference.
At Bret-Mar Landscape, Inc., our fine garden maintenance programs provide season-by-season care tailored to what your landscape needs at each moment. Each maintenance visit includes expert pruning, meticulous bed care, weed control, plant health monitoring, and the kind of proactive attention that keeps your property looking intentional and beautiful through the heat of summer and beyond.
We serve homeowners throughout Homer Glen, Orland Park, Naperville, Lemont, Burr Ridge, New Lenox, Frankfort, and surrounding Chicagoland communities. Consultations are free, and our licensed landscape architects are ready to help you build a summer care plan that protects everything you have invested in your outdoor environment.
Contact Bret-Mar Landscape today to schedule your consultation.
