Although summer arrives late this month, this is still a great time to plant! Many warm season beauties are available now, such as dahlias, lilies, zinnias, and begonias. Landscape plants can also be planted now; this is a fantastic time to visit our garden centers to get ideas and inspiration. Roses should be in full bloom as well! To keep summer annuals blooming, pinch off spent flowers, water, and feed (with All-Purpose or a Bloom Booster Fertilizer).
For the Lawn & Landscape
Be sure to water well as summer heat arrives. Even though we think of Oregon as a rainy state, summers can be quite dry; new plantings and containers are especially vulnerable. We have lots of ways to help you water effectively, including high-quality hoses and sprinklers. Our landscaping division installs, repairs, and upgrades irrigation systems. Don’t forget to mulch mature beds and after planting. An inch or so of organic mulch will go a long way to suppress weeds and conserve water otherwise lost to evaporation.
Most plants will benefit from feeding this month, especially containers, flowerbeds, and vegetables. We recommend Gardner & Bloome organic fertilizers, available in granular or liquid form. Check with a staff member to find out what’s best for you.
Now that roses are in full bloom, continue to remove old flowers and keep an eye out for fungal diseases like powdery mildew or black spot. Pick off damaged leaves, fertilize regularly, and treat early for best results with Bonide Neem Oil. If insects or diseases have been a problem in previous years or disease has taken hold, treat with Bayer Systemic 3-in-1 Insect, Disease & Mite Control.
For the Edible Garden
Fertilize vegetable garden 1 month after planting or after plants emerge by side-dressing alongside rows with Gardner & Bloome Vegetable Food. There is still time to plant summer vegetables such as beets, broccoli (starts), cabbage (starts), carrots, cauliflower (starts), celery (starts), corn, cucumber (starts), kale, lettuce (starts), leeks, parsley (starts), pepper (starts), potatoes (end of month), radish, snap beans, squash (starts), and tomato (starts).
As seeds emerge or as plants grow, be sure to thin plants for proper spacing. Harvest thinnings from new plantings of lettuce, peas, onion, and chard; eat as baby or microgreens. Pick ripe strawberries regularly to avoid fruit-rotting diseases; control pests with Slug Magic or Slug & Bug Magic.
After normal fruit drop of apples, pears, and peaches in June, consider thinning the remainder to produce a larger crop of fruit.
During the first week of the month, spray for codling moth in apple and pear trees, as necessary. Continue use of pheromone traps for insect pest detection. On the last week of the month, second spray for codling moth in apple and pear trees, as necessary with Bonide Captain Jacks (hose-end sprayer).
Learn to identify beneficial insects and plant some insectary plants (e.g. Alyssum, coriander, candytuft, sunflower, yarrow, dill) to attract them to your garden; check with our experts for best selections. Bring home some ladybugs or other garden helpers to combat pests.
Keep on top of garden weeds by pulling, hoeing, or mulching. Control aphids on vegetables as needed by hosing off with water, releasing ladybugs/other beneficial bugs, or by using Bonide Neem Oil. Watch for 12-spotted beetles on beans and lettuce and cabbage worms or flea beetles in cole crops (cabbage, broccoli, Brussels sprouts). Remove the pests by hand or treat with Bonide Captain Jacks or Neem Oil, or cover with Harvest Guard row cover.
In the Garden Shed
Summer can bring pests. While we offer standard chemical controls, we also specialize in earth-friendly, people-safe, and pet-safe organic solutions. These include live beneficial insects and natural products to control slugs, aphids, mites, mildews, caterpillars, root weevils, and budworms (those worms that eat all the buds off your beautiful petunias and geraniums). Again, our staff gardeners are here to help solve any of your garden challenges. Bring a bagged sample of your garden problems to our garden centers for expert advice and solutions or email us with pictures and a description of your problem.
Most fruit trees can be pruned in summer when fruit locations are obvious (especially good for espaliered forms). Spring flowering shrubs and vines, including rhododendrons, lilacs, and spring blooming clematis can be pruned this month as flowers fade. It is also okay to prune boxwood, holly, wisteria, and broad-leafed evergreens (such as hedges).
Register for one of our online classes or workshops this month for inspiration and education! Take a walk through your neighborhood to see all the beautiful gardens that your quarantined neighbors have been working on.