JUNE Plant Care Checklist
Maintenance and prevention
- Check soil moisture and adjust the watering schedule on your irrigation controller accordingly. Water early in the day. Watch container plants which may need daily watering.
- Control powdery mildew, a fungus that likes dry summer conditions. Spray susceptible plants with a horticultural oil or biological fungicide.
- Use pot feet or boards to elevate containers sitting on hot pavement.
- Don’t forget to water houseplants as your attention focuses on the outdoors.
- Check for standing water to keep mosquitoes from breeding.
- Treat ponds with mosquito repellent.
- Turn compost and keep it as moist as a wrung-out sponge. Add garden waste, grass clippings, pruning material, and leaves so long as they are not diseased.
- Raise the cutting height of lawnmower 1 to 1.5 inches to help grass survive drought and heat (encourages deep roots and reduces water demand).
- Leave lawn clippings on the ground for nutrients and as a mulch layer. Learn more about lawn care.
Planting and propagating
- Cut off spent flowers for continued bloom. (Consider leaving some for the birds.)
- Stake tall plants such as dahlias, gladiolus, and lilies as needed.
- Harvest blooming lavender to dry for indoor use.
Pests and weeds
- Monitor and control snails, slugs, and aphids.
- Use beneficial nematodes to manage grubs in your lawn.
- Keep an eye out for early signs of insect infestation - blast any you see with a garden hose.
- Set yellowjacket traps at the perimeter of the yard (not near eating areas) to discourage yellowjackets from visiting.
Feed and fertilize
- Make compost tea for a mild liquid fertilizer.
- Mulch shrubs and beds to conserve moisture.
- Fertilize roses and other summer-blooming plants, if needed, using an organic fertilizer.
- Use little or no fertilizer on herbs.
- Feed azaleas, camellias, and rhododendrons with a balanced organic fertilizer formulated for acid-loving plants monthly during the spring and summer.
- Thin fruit trees.
- Thin fruit on apple trees.
- Protect summer fruit crops with netting or row cover.
- Plant beans, broccoli, chard, cucumbers, eggplant, ground cherries, melons, peppers, pumpkins, parsley, squash, tomatoes
- In cooler areas, plant cabbage, celery, lettuce, bunching onions, and peas.
- Learn more about crops to plant in June and other activities in the edible garden.