When to Refresh Your Lake Mary Lawn: A Spring Guide for Central Florida

Spring in Central Florida does not arrive the way it does up north. By the time most of the country is still scraping ice off windshields, our St. Augustine is waking up, the oaks are dropping catkins, and the first warm-season weeds are pushing through every thin spot. Wait for “spring weather” the way a transplant from Ohio might, and you are already late.

I am Mark DeAngelo, owner of Deangelos Land Services and an ISA Certified Arborist. We have been family-owned since 2018, based in Lake Mary, and we work lawns and landscapes across Seminole, Orange, and Volusia counties. Every February the phone starts ringing with the same question: “When should I refresh the yard?” Here is the honest answer, in the order I would do it on my own property.

Time your first fertilization correctly

Across most of Zone 9b — which is where Lake Mary sits — the right window to apply your first round of fertilizer is when soil temperatures hold steady above 65 degrees, usually mid-March to early April. Fertilize too early and you are feeding weeds before the turf can outcompete them. Fertilize too late and you are chasing the lawn instead of leading it.

For St. Augustine and Zoysia (the two grasses we see most around Lake Mary, Heathrow, and Sanford), I like a slow-release nitrogen blend with a low phosphorus number. Our soils are already phosphorus-heavy and the county fertilizer ordinances reflect that. If you are not sure what your lawn needs, a quick soil test through your county extension office costs less than a bag of bad fertilizer.

Pre-emergent: the deadline almost everyone misses

If you are going to put down a pre-emergent for crabgrass and goosegrass, it has to be down before soil temps hit a consistent 55 to 60 degrees. In Central Florida that is mid-February in a warm year and early March in a cool one. Once you see the first crabgrass blades, pre-emergent is useless for this season — you are now in post-emergent territory. This is the single biggest spring mistake I see homeowners make. By the time the grass “looks like it needs help,” the window has already closed.

Dethatching, overseeding, and patch repair

St. Augustine does not need traditional dethatching the way northern lawns do. What it does need is honest patch repair. If you have bare areas larger than a dinner plate — especially under oaks where last summer’s heat and shade took a toll — spring is the right time to drop fresh sod. Soil is warm, rain is coming, and the new plugs will root before July heat sets in. If your lawn has lost more than about 25% of its coverage, our sod installation crew can typically replace it in a single day and have it watered in on the correct schedule.

Water like the district wants you to

Lake Mary, Heathrow, and most of Seminole County fall under St. Johns River Water Management District restrictions. During Daylight Time, even-numbered addresses water Thursdays and Sundays; odd numbers water Wednesdays and Saturdays; non-residential waters Tuesdays and Fridays — always before 10 a.m. or after 4 p.m. Spring is the right time to walk your zones and check every head. If your system is more than 10 years old, this is a good moment to consider a sprinkler system upgrade or full installation — smart controllers can pay for themselves in a single Central Florida summer.

Mulch, beds, and new plantings

By late March, our nights stop dipping into freeze territory and you can safely plant pretty much anything that is rated for Zone 9b. That makes spring the prime window for new garden bed installation, bed expansions, and refreshing your tropicals. Pair new beds with a 2-to-3-inch layer of pine bark or pine straw — not the 6-inch volcano of mulch around the trunk that I still see in too many yards. Proper mulching services applied at the right depth retain moisture, moderate soil temperature, and starve out the warm-season weeds that are about to wake up.

What NOT to do in spring

A few hard rules, learned the slow way:

• Do not heavy-prune live oaks in spring. Sap is moving, oak wilt is a real concern in Florida, and you want major oak work done in the dead of winter, not now. Light shaping is fine; structural cuts wait.
• Do not scalp St. Augustine. Drop your mower one notch if it helps even out the canopy, but never below 3.5 inches. Scalping invites chinch bugs and brown patch.
• Do not apply pre-emergent after the weeds emerge. Read the deadline above twice.
• Do not mulch up against the trunk of any tree or shrub. Pull it back to expose the root flare. Volcano mulching kills more trees than people realize.

A simple spring sequence

If you want a one-paragraph version, here it is: pre-emergent down by early March, sprinkler audit second week of March, first fertilization mid-March to early April, sod patches and bed refresh by the end of March, mulch by early April. Follow that order in Lake Mary and you will be ahead of 80 percent of your neighbors.

Ready to skip the guesswork?

If you would rather hand the spring refresh to a local crew that does this every day, give us a call. We are family-owned, licensed and insured, ISA Certified, and we offer a 10% Veteran Discount on every service we provide. You can reach Mark and the team at (386) 675-2303, or learn more about our full menu of landscaping services in Lake Mary. Spring books up fast — getting on the schedule in February usually means a March slot, and waiting until April usually means May.