While you are enjoying your yard, and I hope that you are, here are some items to put onto your gardening checklist. Begin planting summer annuals (spring has finally come to stay!) to add color and spice to the landscape, and don’t stop with just the flowerbeds. There are many new color introductions available in annuals this year that will prove to be very exciting. Try Dragon Wing Begonias, Kong Coleous, Black and Blue Salvia, or Juncus to name a few. Another great addition to the landscape, Knock Out Roses - really are Knock Outs, and are now available in 9 varieties (including singles and doubles). These beauties are very disease resistant and require low maintenance. Therefore, roses are not just for the experts anymore.

Take your houseplants outdoors once the evening temperatures will remain above 50`. Move sun-loving plants (hibiscus, gardenias, mandevillas, etc.) gradually to sunny locations, as they have not had full sun in your home and will need to be acclimated to those conditions. Plant summer bulbs now and fertilize with bone meal or bulb food. Pinch hardy garden mums back now and continue to do so until July 4 to insure proper fall blooming. Treat slugs in your garden with organic diatomaceous earth. This powder product is 100% safe, and is good for the treatment of slugs, ants, fleas and ticks outside, as well as roaches and ants indoors. This organic product is very safe to use and a good one to have on hand. “Natural Gardening” with eco-friendly products is a very “trendy” and SAFE thing to do for your own health as well as the environment. Check out the chemical-free options available to you today. Then sit back and watch your kids and pets enjoy the beautiful outdoors.
Insect problems to watch for this month are pine sawflies, aphids, scale crawlers, cucumber beetles, and grubs, to name a few. Permethrin is the chemical product on the market today that is labeled for indoor and outdoor use. Permethrin will kill a large variety of insects on plants, in the soil, and in the home. It comes in many formulations and strengths. See a professional for questions of use of this product.
Other May tips include:
· Pinch azalea and rhododendron blossoms as the flowers fade.
· Fertilize azaleas and rhododendrons with an acid base fertilizer now.
· Do not remove spring bulb foliage too early or next year’s flower production will decline. Let the foliage die back naturally.
· Plant hardy water lilies now.
· Begin fertilizing annuals now and continue at regular intervals all season long.
· Treat trees with borer problems now with Bayer Advanced Tree & Shrub product.
· Keep bluegrass lawns cut at 1.5-2.5” high, fescue lawns at 2-3.5” high and zoysia at 1.5” high.
· Apply post-emergence broadleaf weed controls to the lawn now if needed.
· Begin planting sweet corn, tomato plants, peppers and sweet potatoes as the soil warms up.
· Keep asparagus harvested for continued spear production.
· Remove rhubarb seed stalks as they appear.
· Do not spray any fruits while in bloom, you may ruin the pollination process.
· Birds eat many insects so attract them to your garden by providing good nesting habitats.
· Herbs planted in average soils need no extra fertilizer. Too much may reduce flavor and pungency at harvest.
· Watch for fireflies on warm nights. Both adults and larvae are important predators for plant damaging insects.
Until next month, enjoy connecting with nature and….see you in the garden….
Sandi Hillermann McDonald