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Produced by OSU Extension, each month provides reminders of key garden chores, such as fertilizing, pest control, planting, and maintenance.

Recommendations in this calendar are not necessarily applicable to all areas of Oregon. For more information, contact your local Extension office.

The Oregon State University Extension Service encourages sustainable gardening practices.

Preventive pest management is emphasized over reactive pest control. Identify and monitor problems before acting and opt for the least toxic approach that will remedy the problem. The conservation of biological control agents (predators, parasitoids) should be favored over chemical controls.


Maintenance and cleanup

  • Recycle disease-free plant material and kitchen vegetable and fruit scraps into compost.

  • Drain or blow out your irrigation system and insulate valve mechanisms in preparation of winter.

  • Use newspaper or cardboard covered by mulch to discourage winter and spring annual weeds or remove a lawn area for conversion to garden beds. For conversion, work in the paper and mulch as organic matter once the lawn grass has died.

  • Clean and paint greenhouses and cold frames for plant storage and winter growth.

  • Harvest sunflower heads; use seed for bird feed or roast for personal use.

  • Dig and store potatoes; keep in darkness, moderate humidity, temperature about 40°F. Discard unused potatoes if they sprout. Don't use as seed potatoes for next year.

  • Harvest and immediately dry filberts and walnuts; dry at 95°–100°F.

  • Ripen green tomatoes indoors. Check often and discard rotting fruit.

  • Harvest and store apples; keep at about 40°F, moderate humidity.

  • Place mulch over roots of roses, azaleas, rhododendrons and berries for winter protection.

  • Trim or stake bushy herbaceous perennials to prevent wind damage.

  • To suppress future pest problems, clean up annual flower beds by removing diseased plant materials, overwintering areas for insect pests; mulch with manure or garden compost to feed the soil and suppress weeds.

  • Cover asparagus and rhubarb beds with a mulch of manure or compost.

  • Clean, sharpen and oil tools and equipment before storing for winter.

  • Store garden supplies and fertilizers in a safe, dry place out of reach of children.

  • Prune out dead fruiting canes in raspberries.

  • Western Oregon: Harvest squash and pumpkins; keep in dry area at 55°–60°F.

  • Western Oregon: Spade organic material and lime into garden soil, as indicated by soil test results (if necessary and the weather permits).

  • Central/eastern Oregon: Prune evergreens.


  • Dig and divide rhubarb. (Should be done about every 4 years.)

  • Plant garlic for harvesting next summer.

  • Propagate chrysanthemums, fuchsias and geraniums by stem cuttings.

  • Save seeds from the vegetable and flower garden. Dry, date, label, and store in a cool and dry location.

  • Plant ground covers, trees and shrubs.

  • Dig and store geraniums, tuberous begonias, dahlias and gladiolas.

  • Pot and store tulips and daffodils to force into early bloom, indoors, in December and January.

Pest monitoring and management

Use chemical controls only when necessary and only after thoroughly reading the pesticide label. First consider cultural, then physical and biological controls. Choose the least-toxic options (insecticidal soaps, horticultural oils, botanical insecticides, and organic and synthetic pesticides — when used judiciously).

  • Remove and dispose of windfall apples that might be harboring apple maggot or codling moth larvae.

  • Rake and destroy diseased leaves (apple, cherry, rose, etc.), or hot compost diseased leaves.

  • Spray apple and stone fruit trees at leaf fall to prevent various fungal and bacterial diseases. For more information, see Managing Diseases and Insects in Home Orchards.

  • If moles and gophers are a problem, consider traps.

  • Western Oregon: Control fall-germinating lawn weeds while they are small. Hand weeding and weeding tools are particularly effective at this stage.

  • Monitor landscape plants for problems. Don't treat unless a problem is identified.

Houseplants and indoor gardening

  • Early October: Reduce water, place in cool area (50–55°F) and increase time in shade or darkness (12–14 hours) to force Christmas cactus to bloom in late December.

  • Place hanging pots of fuchsias where they won't freeze. Don't cut back until spring.

  • Western Oregon: Check/treat houseplants for disease and insects before bringing indoors.

Trade-name products and services are mentioned as illustrations only. This does not mean that the Oregon State University Extension Service endorses these products and services or intends to discriminate against products and services not mentioned.

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