Vallejo, California planting calendar and frost dates

Frost dates in Vallejo

NOAA U.S. Climate Normals 1991-2020 for Napa Co Airport, 7.5 miles NNW of the city center. Low-lying and rural spots often frost later in spring and earlier in fall than airports and city centers.

What to plant each month in Vallejo

1. January

   Start indoors: black-eyed susans, broccoli, cabbages, cauliflower, chives, cilantro, collard greens, kale, leeks, lettuce, marigolds, nasturtiums, oregano, parsley, petunias, ranunculus, rosemary, sage, snapdragons, spinach, swiss chard

   Plant or sow outdoors: black-eyed susans, blueberries, garlic, grapes, grass seed, hollyhocks, kale, onions, peas, poppies, raspberries, rhubarb, strawberries, turnips, wildflowers

2. February

   Start indoors: cilantro, ginger, marigolds, nasturtiums, peppers, ranunculus, zinnias

   Plant or sow outdoors: asparagus, beets, black-eyed susans, blackberries, blueberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, dahlias, dill, figs, garlic, gladioli, grapes, grass seed, green onions, hollyhocks, kale, leeks, lettuce, onions, parsley, peas, poppies, potatoes, radishes, ranunculus, raspberries, rhubarb, roses, snapdragons, spinach, strawberries, swiss chard, turnips, wildflowers

3. March

   Start indoors: basil, celery, eggplants, peppers, tomatoes

   Plant or sow outdoors: asparagus, beets, carrots, chives, cilantro, dahlias, dill, figs, garden mums, gladioli, grapes, green onions, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, oregano, parsley, petunias, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, swiss chard, thyme, zinnias

4. April

   Start indoors: basil, cantaloupes, celery, cucumbers, pumpkins, tomatoes, watermelons, winter squash, zucchini

   Plant or sow outdoors: garden mums, ginger, green onions, kentucky bluegrass, st. augustinegrass, sweet peas, tall fescue

5. May

   Start indoors: cosmos, okra

   Plant or sow outdoors: basil, cantaloupes, cucumbers, eggplants, green beans, peppers, pumpkins, st. augustinegrass, tomatoes, watermelons, winter squash, zucchini

6. June

   Plant or sow outdoors: bermudagrass, celery, centipedegrass, cosmos, okra, peanuts, sweet potatoes, zoysiagrass

7. July

   Plant or sow outdoors: bermudagrass, centipedegrass, okra, zoysiagrass

8. August

   Plant for fall: bearded irises, brussels sprouts, carrots, collard greens, lettuce, peas, potatoes, snapdragons, sweet corn, swiss chard

9. September

   Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, carrots, cauliflower, clematis, collard greens, coneflowers, daylilies, hostas, hydrangeas, kale, lettuce, peas, radishes, roses, saffron, snapdragons, spinach, swiss chard, turnips

10. October

    Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, cauliflower, clematis, coneflowers, crocuses, daffodils, daylilies, grass seed, hostas, hyacinths, hydrangeas, kale, kentucky bluegrass, lilies, ornamental alliums, peonies, perennial ryegrass, radishes, roses, saffron, spinach, tall fescue, tulips, turnips

11. November

    Start indoors: onions

    Plant for fall: crocuses, daffodils, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips

12. December

    Start indoors: broccoli, cabbages, cauliflower, collard greens, kale, leeks, onions, oregano, parsley, petunias, ranunculus, rosemary, snapdragons

    Plant for fall: crocuses, garlic, hyacinths, ornamental alliums, tulips

Frost dates and zones by ZIP code in Vallejo

All 4 of Vallejo's main ZIP codes take their frost dates from Napa Co Airport, so the dates on this page apply across the city. Every one of them is in zone 9b.

Planting dates for popular crops in Vallejo

Nearby cities

• Richmond, CA zone 10a
• Napa, CA zone 9b, last frost Feb 12
• Novato, CA zone 9b, last frost Feb 28
• San Rafael, CA zone 10a, last frost Jan 16
• Fairfield, CA zone 9b, last frost Jan 15
• Berkeley, CA zone 10a