Seasonal Lawn Care Calendar for Central Ohio Commercial Properties

Central Ohio's climate presents a unique set of opportunities and challenges for commercial property managers. With cold, often snowy winters, wet springs, hot humid summers, and colorful but unpredictable falls, staying ahead of the landscape calendar is essential for maintaining pristine curb appeal year-round without scrambling at the last minute.

This guide breaks down the key commercial lawn care tasks by season — calibrated specifically to the Columbus, Ohio climate and the USDA Hardiness Zone 6a/6b conditions that govern plant growth in Franklin County and surrounding areas. Whether you manage a single office building, a retail center, or a portfolio of commercial properties, this calendar will help you prioritize and plan your landscape maintenance investments throughout the year.

Late Winter / Early Spring (February — March)

The season's planning window opens in February, even as snow still blankets many Central Ohio properties. This is the ideal time to review your landscape maintenance contracts, schedule spring service walk-throughs with your landscaping provider, and plan any improvements or enhancements for the coming season. Property managers who wait until April to begin thinking about landscaping often find themselves scrambling for service availability.

Key tasks for late winter and early spring include:

Complete any remaining winter cleanup — removal of dead annuals, storm-damaged branches, and accumulated debris from bed areas
Schedule pre-emergent herbicide application to prevent crabgrass and broadleaf weed germination before soil temperatures rise
Assess irrigation system condition and schedule startup inspection for mid-April activation
Order spring annual flowers and confirm installation schedule with your landscape contractor
Plan mulch installation program — fresh mulch in April creates an immediate visual impact as spring growth begins
Review snow removal equipment and contract notes while details are fresh before spring transitions

In Central Ohio, soil temperatures typically reach the 50°F threshold for pre-emergent application between late March and mid-April. Your landscaping contractor should be monitoring this window carefully — applying too early wastes product, and applying too late allows weed seeds to germinate before the barrier is established.

Spring (April — May)

Spring is the busiest and most impactful season in the commercial landscaping calendar. The tasks completed in April and May set the visual tone for the entire year and establish the foundation that your summer maintenance program builds upon. Professional landscaping companies schedule their spring work meticulously — properties with established maintenance contracts receive priority scheduling, while properties seeking service for the first time in spring often face delays as crews reach capacity.

April priorities for Central Ohio commercial properties:

Fresh mulch installation in all planting beds — aim for 2 to 3 inches of fresh double-ground hardwood mulch to suppress weeds, retain moisture, and create a clean, polished appearance
Spring annual flower installation as soon as frost risk passes (typically after May 15 in Central Ohio)
First mowing of the season — begin when grass reaches 3.5 to 4 inches; avoid scalping dormant turf
Irrigation system startup, head adjustments, and controller programming
Bed edging to establish clean definition lines between turf and planting areas
Fertilization application — slow-release nitrogen in late April promotes dense, uniform green growth without excessive surge growth
Tree and shrub inspection for winter damage; schedule pruning for damaged specimens

May brings peak visual impact as spring-blooming shrubs and ornamental trees flower, and cool-season annuals like pansies, snapdragons, and alyssum deliver bright color at entry points and common areas. This is also the window for overseeding thin turf areas before summer heat stress sets in.

Summer (June — August)

Central Ohio summers are characterized by heat, humidity, and periodic drought stress — conditions that challenge even well-established commercial turf. Mowing frequency typically peaks in June before slowing during July heat, then increases again in August as conditions moderate. Proper mowing height is critical during summer: never remove more than one-third of the blade in a single cutting, and raise mowing height to 3.5 to 4 inches during periods of heat stress to reduce moisture loss and protect root systems.

Summer maintenance priorities include:

Consistent mowing on a scheduled rotation — typically every 5 to 7 days during peak growth periods
Continuous bed maintenance — weekly weed control to prevent summer weeds from establishing and going to seed
Irrigation monitoring — adjust scheduling based on rainfall; avoid shallow, frequent watering that promotes shallow root development
Summer annual rotation (if applicable) — replace cool-season spring annuals with heat-tolerant summer varieties like vinca, marigolds, zinnias, and pentas in late May or early June
Hard surface maintenance — blow or sweep parking lots, walkways, and entries on each service visit to maintain clean appearance
Monitor trees for early signs of drought stress, insect activity, or disease — summer is when iron chlorosis, anthracnose, and borers are most active on Ohio ornamentals

August is also the planning window for fall maintenance. Scheduling aeration and overseeding early ensures your contractor can complete the work in the optimal mid-September to mid-October window when cool-season grass establishment is most successful.

Fall (September — November)

Fall is arguably the most important season for long-term turf health at Central Ohio commercial properties. The tasks completed in September and October directly determine the quality and density of your lawn the following spring. Cool, moist conditions in fall create ideal germination conditions for Kentucky bluegrass, perennial ryegrass, and tall fescue — the primary turf species used in Central Ohio commercial applications.

Fall lawn care priorities:

Core aeration in mid-September through mid-October — relieves soil compaction common in high-traffic commercial areas, improves drainage, and opens channels for overseeding
Overseeding thin or bare areas immediately following aeration — timing is critical for establishment before cold weather
Fall fertilization — a winterizer application in late October or early November delivers slow-release nutrients that strengthen root systems before dormancy
Fall flower installation — cool-season annuals like kale, mums, asters, and ornamental peppers extend seasonal color through October and November
Leaf management — regular leaf removal prevents smothering of turf and maintains clean appearance; remove leaves before they form matted layers over the lawn
Final mowing — lower mowing height slightly for the last cut of the season to reduce risk of snow mold under matted grass
Irrigation system winterization before first hard freeze (typically late October in Columbus)
Snow contract finalization — review, sign, and return snow management contracts before November 1 to ensure coverage for early-season storms

Winter (December — February)

Central Ohio winters demand active management, not dormancy, for commercial properties. Snow and ice events can occur from November through March, and unprepared properties face genuine liability exposure from slip-and-fall incidents. A professional snow management contract provides 24/7 monitoring, defined response times, pre-treatment protocols, and full service documentation.

Winter priorities for commercial properties include:

Snow and ice management on all paved surfaces, walkways, building entrances, and fire lanes
Pre-treatment applications before forecasted events to prevent ice bonding
Salt management that balances effective ice control with minimizing damage to adjacent turf and plantings
Storm documentation for liability protection
Holiday decorating and lighting installation (seasonal services)
Begin planning and budgeting for spring landscape enhancements during the quiet winter months

Partner with DLL Landscaping for Year-Round Excellence

Executing this calendar consistently requires a reliable commercial landscape contractor with the equipment, staffing, and systems to deliver on schedule regardless of weather conditions. Since 2009, DLL Landscaping & Tree Service has provided Central Ohio property managers with comprehensive year-round maintenance programs designed to maximize curb appeal and protect landscape investments through every season Ohio delivers.

Our commercial maintenance programs are custom-built for each property — we walk your site, understand your budget parameters, and design a service schedule that keeps your property looking its best throughout the year. From the first pre-emergent application in early spring to the last snow event response in late winter, DLL Landscaping provides the consistent, professional service your property deserves.

Contact us today to schedule a free site evaluation and receive a custom seasonal maintenance proposal for your Central Ohio commercial property.