Ag picture
Trees and Shrubs
- New growth on evergreens can be pruned.  Pine species are best pruned in June.
- Plants in bloom include hydrangeas, rugosa rose, cinquefoil, blue mist shrub, and butterfly bush
- Plants with fruit include mountain ash, elderberry,  and Oregon grapeholly
- Prune out dead or diseased branches and twigs
- Monitor for aphids, lacebugs, clearwing borers, scale (euonymus, prunicola - crawlers), and spider mites
- If necessary, treat for powdery mildew on various plants (lilac, dogwood, azalea, etc.)

Perennials and Annuals
- Fertilize container plants to maintain color and vigor
- Monitor moisture in soil especially the container grown plants - those in landscape beds can efficiently be watered using drip or soaker hoses
- Deadhead regularly to promote bloom and maintain health of plants
- Perennials in bloom include daylilies, Allium, hostas, coneflower, black-eyed susan, bee balm, and Coreopsis
- Tender bulbs in bloom are cannas, dahlias, gladiolus, and begonias
- Iris divisions can still be done

Lawns
- Maintain mower height around 3-3 1/2 inches for most cool-season grasses
- If you are irrigating turfgrass through the summer, apply 1 - 1 1/2 inches/week - this includes rainfall
- Avoid weed control in the heat of the summer
- Monitor for warm season diseases such as brown patch, Pythium, summer patch, dollar spot and Melting-out
- Insects to watch for include sod webworm, grubs and chinch bugs

Vegetables and Fruit
- Maintain adequate moisture in soil especially around tomato plants
- Vegetables to harvest include tomatoes, beans, peppers, squash, corn, beets and carrots
- Fruit to harvest include peaches, nectarines, plums, early apples, raspberries, blackberries
- Insects to look for include bean, potato, flea and cucumber beetles, aphids, thrips, leafhoppers
- Common diseases include anthracnose, wilt, Septoria leaf spot, corn earworm, and bacterial canker
If Plants Could Talk features gardening tips from local university experts, successful farmers, master gardeners, and many other plant experts. Topics include new and interesting plant varieties, safe and effective pest control, step-by-step cultural tips for landscape and garden, and visits to local farms, arboretums, and backyard gardens.

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This Month's Feature
Plant Talk
Plant Talk
Bill Hlubik's weekly article for 5/22/2008
Plants that Attract Hummingbirds and Butterflies
Plants that Attract Hummingbirds and Butterflies
Interesting flowers for your landscape.
Picking Vegetables in the Home Garden
Picking Vegetables in the Home Garden
Factsheet explaining when vegetables should be harvested.
Sound Horticulture
Sound Horticulture
Learn how to use sound horticultural techniques to reduce problems in your vegetable garden
Deep Cut Gardens
Deep Cut Gardens
Information about Deep Cut Gardens