June July August Vegetable gardening Harvest remaining cool-weather crops such as lettuce, radishes, scallions, and small carrots. Begin sowing heat-tolerant vegetables like beans, chard, and cucumber. Stake tomatoes, eggplants, and peppers at planting time to prevent root damage. Perennials and annuals Continue pinching mums and asters. Finish planting annuals.
Bulbs Continue deadheading after flowering.
Roses Start deadheading repeat-blooming shrub roses and climbers to encourage rebloom. Fertilize with a granular, balanced NPK formula. Water gardening Add pots of water-lilies or other aquatic plants. Apply balanced slow-release fertilizer. Replace disintegrated mulch.