Oregon & Washington Landscape Care Calendar
March
- Treat for Pear trellis rust and anthracnose if not done already
- Protect trees and shrubs from aphids and other insects that product sticky honeydew all season long
- Protect birch trees from bronze birch borer with systemic tree treatment
- Feed acid loving plants like azalea and rhododendron now
- Treat lawns to prevent or reduce moss and cranefly
- Treat soil to adjust soil pH if needed
April
- Treat susceptible conifers to protect them from beetles
- Start organic pest control programs on fruit trees
- Fertilize roses and perennials
- Perform spring tree fertilization now
- Use pollinator friendly approach to aphid prevention now
May
- Add mulch to landscape beds to reduce water loss and keep roots cooler
- Control slugs and snails
- Treat maples, dogwoods and other trees for powdery mildew
- Prune spring flowering shrubs after they finish blooming
- Adjust irrigation system as temperatures start to warm
June
- Maintain organic pest control program on citrus and fruit trees
- Thin fruit trees to reduce excessive fruit production
- Make a plan to summer prune trees
- Allow lawns to grow taller between cuttings to shade roots and reduce water loss.
July
- Treat plants stressed by summer heat with ArborKelp
- Water lawns deeply and infrequently
- Review site with your SavATree arborist to make a pruning plan
August
- Feed fruit trees the last round of organic fertilizer this month
- Make sure trees are not stressed from lack of water
- Protect shrubs and trees from summer pests with organic based treatments
- Schedule a fall aeration
