June Garden Checklist
If growth appears to slow and the foliage turns yellow, they may need an extra feeding. Too much growth and a lack of flowers indicates the plants have all the nutrients they need and you can skip a feeding. It is not too late to start flowers that tolerate summer heat and rain. Globe amaranth, melampodium, pentas, portulaca, purslane, salvia, zinnia, lantana, buddleia, daylily, verbena, purple coneflower, plumbago, and sun coleus can be planted in full sun. Remove old blooms and flower spikes from annuals. This is called "dead heading" and makes the flowers bloom longer. Fertilize monthly except for marigolds and periwinkles.
Cutting bouquets of gladiolus, dahlias, tuberose, and other lilies for the home can be fun at this time of year. It’s a good way to enjoy the blooms without having to worry about removing the spent flowers later on.Bulbs to plant include agapanthus, blackberry lily, clivia, gloriosa lily, achimenes, crinum, and iris.
Bay laurel, culantro, ginger, horehound, lavender, Mexican tarragon, mint, parsley, oregano, rosemary, sesame, and thyme can be planted now.
Keep mower blade sharp (once a month is a good rule). This is a good month to apply iron to St. Augustine lawns. Iron can be applied in liquid or granular form. Please follow the directions before application.
Some pests to check for are grasshoppers and katydids. Both may be chewing holes in plant leaves. Try to handpick them from the plants, or if needed, use a synthetic insecticide as instructed on the label for chewing insects.
Pests may be noticed in many trees, but their damage is minimal and seldom are sprays needed. Look for aphids, borers, mites, etc. Fertilize trees and shrubs if you want to encourage new growth. Check mulch around ornamental plants to be sure it is 2 inches thick. Add mulch as needed to keep weeds down and conserve water. Keep mulch 1 to 2 inches away from trunk or stem.
June is not the best month to be starting a garden or planting new crops. The few possibilities are lima beans, eggplant, okra, Southern peas, and sweet potatoes. You may still plant tomatoes in containers if you want something to harvest. This would be a good month to solarize your garden to fight against nematodes. Blueberries begin ripening in mid-June.