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Top 7 Gardening Must-Do’s for May 2025!

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Yay for May! Everything’s growing and blooming and we hope you are too! May is Mental Health Awareness Month, which is a good time to think about the peace of mind that gardening brings us. Gardeners know that all the research is true – gardening is good for you! Here are our Top 7 Must Do’s this May to keep you and your garden feelin’ good.

1. Join Us for Garden Talks and Events!

We’ve got a big May planned here at Gill’s, and we’re kicking it off this Saturday, May 3rd with a fun cyanotype printing event with the TAMUCC Student Art Association. Stop by and create your own cyanotype prints using leaves and flowers! Then next weekend we’re inviting kids to come pot up a flower for Mom for Mother’s Day. Sure to be lots of fun and lots to learn and discuss! Click here for more info and tickets!

2. Plant Blooming Perennials and Trees

It’s time to plant lots of different blooming perennials and blooming trees. Get them established in May so they are rooted and acclimated to withstand warmer temps this Summer. Staples like Esperanza, many varieties of Salvia, Lantana, and tons more are all blooming beautifully right now. And blooming trees like Vitex, Retama, and Wild Olive are looking great right now. Crape Myrtles will start blooming soon too. Added bonus:  blooming perennials and trees attract lots of butterflies and hummingbirds!

3. Plant and Harvest Veggies

Warm weather veggie time! Plant all kinds of peppers, zucchini, squash, melons, and okra this month for continued harvesting into the Summer months. If you planted tomatoes, cucumbers, and other early Spring veggies, you’ll be harvesting now or very soon. Be sure to harvest often! It keeps birds & insects from finding them first. If you do have insect issues in your veggie garden, our go-to organic control is Spinosad – safe for food but takes care of bugs. Remember to keep watering your veggies as the weather warms up to maintain depth moisture. 

4. Mulch for Many Reasons!

We all know that fresh mulch is like a fresh coat of paint for your garden – instant makeover! But did you know that applying a proper 3” layer of natural mulch keeps underlying soil temps more than 20 degrees cooler?! A good mulch layer keeps weeds at bay, and as it breaks down over time, it add nutrients to your soil. And perhaps most importantly right now, a good mulch layer retains moisture, which means big water savings. 

5. Transition Your Lawn to Summer

Feed with Natural Fertilizers:  Medina Growin Green or Milorganite. Yes, you can still fertilize your lawn, even though our lawn watering is limited. Using a good organic lawn food, like our go-to Medina Growin Green, promotes root growth and long-term health, which makes lawns more tolerant of less water. Ideally you’d want to water the fertilizer in, but you don’t have to. Medina Growin Green is gentle and won’t burn your lawn. You can apply it now and water it in slowly over a few weeks. If you have trees in your yard, keep in mind that fertilizer and water need to be applied at the drip line, aka where rainwater naturally drips off the outer edge of the canopy. Therefore, if you apply fertilizer to your lawn and water it in for the trees, your lawn will get the benefit too. You can also try to time your lawn fertilizing with a light rain. We typically don’t recommend waiting for rain to fertilize since a heavy rain would wash most of the fertilizer granules away. But, given the watering limitations, taking advantage of a light rain is a good solution. 

Watering:  Homeowners can collect free effluent water at the Oso Wastewater Treatment Plant to use to water lawns, which is a great option. Apply for a quick and easy residential permit from the City of Corpus Christi here.  If you do so, keep in mind that 1,000 gallons can water 1,621 sq ft of lawn at a nice 1” depth or 3,225 sq ft of lawn at ½” depth. 

When mowing, the proper height for St. Augustine lawns is around 3 inches. For Bermuda lawns, keep mowed to around 2-2.5 inches. Buzzing lawns shorter than that will cause lawn stress, and stressed lawns are more susceptible to pests, weeds, and disease.

Watch for lawn insects & treat when needed. Grub worms & chinch bugs are easy to control when caught early but there’s no need to treat unless you have them. BioAdvanced 24-Hour Grub Killer or Season-Long Bonide Insect and Grub Control will do the trick for grubs. Diatomaceous Earth, Spinosad, or Cyonara takes care of chinch bugs. Reminder, you can bring us a grass sample any time you suspect a lawn disease or pest. We’ll diagnose (using our microscope if needed) and get you what you need to knock it out.

Consider reducing your lawn space! Does all this lawn stuff sound like a lot of work? It can be! Many of us are reconsidering whether we really even want all that green lawn space. Why not start converting small portions of lawn to planting beds filled with blooming perennials that benefit the environment and use far less water? One way to start would simply be to deepen existing landscape beds to reduce some lawn. 

6. Set Your Mosquito Traps!

We are big fans of the simple bucket mosquito trap. Just fill a bucket 3/4 with water, add a good handful of lawn or plant clippings, and toss in a Mosquito Dunk or Mosquito Bits. These dissolve in the water and release bacteria that target mosquito larvae and kill them before they hatch. And they’re organic and not harmful to birds, bees, pets or humans! Set a few of these traps, sprinkle some organic Mosquito Beater granules around walkways and patios, spray organic Cedar Repel on your lawn, and use Skeeter Screen incense sticks near where you’re working or hanging out outside. Remember that using chemical mosquito foggers kills all the good bugs too, some of which also help control mosquitos and other bad bugs.

7. Gifts for Mother’s Day and Graduations

Let us help you find something pretty, useful, or both for the gardening moms and grads in your life. Pottery, birdbaths, wind chimes, quality garden tools, hats, gloves, garden decor, plantable greeting cards, gardening books – lots of options. You can purchase Gill gift cards online here and we’ll gift wrap and mail them to your loved one. Or come find the gift that gardeners love most – plants 🙂

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