Become a Fan

Sign up for our newsletter

Twitter Feed

  • Could not connect to Twitter

Monthly spring gardening guide

Confused about what to do and when now that spring is here?  Thanks to our Solano County Master Gardener friends, here is a guide that covers what you should plant, what maintenance needs to be done, and what preventative measures you can take for the months of April, May and June.   This is an abridged version of the article that you can find in the Spring 2010 Solano County Master Gardeners Newsletter.  Click here to read the full article.



  • Edibles: loose-leaf lettuce, herbs, chard, carrots, radishes, spinach.
  • Warm-season annuals: ageratum, alyssum, salvia, sunflower, zinnia.
  • Perennials: lavender, coreopsis, rudbeckia, penstemon, verbena.


  • Bait for snails and slugs.
  • Rid new growth of aphids with a blast of water from your hose every few days.
  • Dump standing water to slow mosquito breeding.


  • Pull or hoe weeds as soon as they appear.
  • Fertilize citrus, azaleas, camellias and rhododendrons.
  • Spray olives, liquidambar and other messy trees with fruit control hormone or blast with hose to curb fruit production.

Who DOESN'T love lavender?



  • Edibles: beans, corn, cucumbers, eggplant, melons, okra, peppers, pumpkins, squash, tomatoes, watermelon.
  • Plants to attract butterflies, bees and hummingbirds: agastache, bee balm, coneflower, coral bells, fuchsia, honeysuckle.
  • Plant chrysanthemums for fall color.
  • Perennial shrubs, trees or vines.


  • Tune up drip irrigation systems.
  • Build basins around the bases of shrubs and trees; mulch those and garden plants to conserve moisture and reduce weeds, leaving a mulch-free margin around plant crowns and stems.
  • Stake tomatoes and perennials.
  • Remain vigilant against snails, slugs and aphids.


  • Fertilize citrus and established perennials and vegetables.
  • Deadhead spent flowers to encourage new bloom; pinch back petunias and fuchsia.
  • Allow spring bulb foliage to yellow and dry out before removing.
tomato stakes

Make sure to get your stakes in for your tomatoes...

green zebra tomatoes you can enjoy a bounty of tomatoes like these green zebras we had last year. Yum!



  • Edibles: melon, beans, and corn from seed; tomato, squash and cucumber seedlings.
  • Successive plantings of basil and cilantro.
  • Summer annuals: cosmos, marigolds, portulaca, sunflowers, zinnias.
  • Summer-blooming perennials: daylilies, gloriosa daisy, Russian sage, salvia, yarrow.


  • Mulch to keep roots cool and retain moisture.
  • Check underside of tomato leaves for hornworms.
  • Spray roses with Neem oil to help control aphids, black spot, whiteflies and powdery mildew.
  • Inspect garden for earwigs.
  • Remain vigilant against snails and slugs.


  • Roses: cut back faded blooms to 1/4” above first five leaflet that faces outside bush.
  • Fruit trees: thin apples, pears, peaches and nectarines, leaving about 6” between fruit.
  • Sprinklers: summer heat increases water needs by 2” per week. Adjust sprinklers for adequate coverage and irrigation.
  • Fertilize annual flowers, vegetables, lawns and roses.
  • Dig and divide crowded bulbs; allow to dry before replanting.
  • Deep-water trees to encourage strong root growth.

Get your sunflowers planted asap!


One Response to “Monthly spring gardening guide”

  1. David Gordon says:

    Thanks for the great article. It is always good to learn from experts in this field. Organic Gardening Secrets