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March

March grow month
  • Clean tools and containers with warm soapy water.
  • Prepare planting areas: remove weeds and add compost.
  • Start planting flowers for pollinators. Alyssum and Nemophila are great for early spring pollinators.
  • Plant perennial herbs such as rosemary, thyme and oregano.
Kids Can!
Show kids how to spot garden weeds for pulling.
Planting Chart
Planting Tips Coastal Western valleys High elevations Columbia/Snake River valleys
Start seeds indoors Eggplants, peppers, tomatoes Eggplants, peppers, tomatoes Cabbage, cauliflower, broccoli, Brussels sprouts Soon!
Start seeds outdoors Arugula, peas, spinach, chard Arugula, peas, spinach, chard Nothing yet! Wait until next month!
Transplant outdoors Broccoli, kale Broccoli, kale Still too cold! Keep planning and researching!
Where is your garden?
Oregon has four growing regions. Choose vegetable varieties and planting dates suitable to the growing conditions in your area:
Garden Zones Map
  1. Oregon coast: cool, long season of 190-250 days.
  2. Western valleys: 150-250 day season; warm days, cool nights; length of season varies year to year.
  3. High elevations: short growing season of 90-120 days; frost can occur during any month.
  4. Columbia and Snake River valleys: 120-200-day season; hot days, warm nights; length of season fairly well defined.