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A lady beetle rests on bell bean plants, which are
an excellent cover crop. (Photo: Kathy Morrison)
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Autumn officially begins in a little less than three weeks. The rest of the country is starting to shut down the gardening season, but not California. If the weather cooperates -- and that's no sure bet these days in the Sacramento region -- gardeners here can indulge in a favorite activity: Fall planting.
Warm soil and cooler nights, with somewhat lower daytime temps, combine for perfect planting conditions, especially for perennials. The conditions also are good for cool-weather vegetable transplants, fall/winter annuals and some trees. This window should last through October at least.
Normally at this time of year, I make a beeline to the Fair Oaks Horticulture Center's September Open Garden. I like to see what the UCCE Sacramento County master gardeners are planting for fall and to talk about what went right over the summer.
But it was just announced that the Sept. 12 event is canceled. No surprise there, given the continued COVID-19 risk and limits on group gatherings.
But the master gardeners are still around, busy and answering questions, online though not by phone. And they have a wonderful website full of information to guide any gardener through fall planting.
Specific information that I refer to often includes:
-- This handy planting chart for the Sacramento region. It shows, for example, that now through mid-October is the best time for planting carrots from seed, but it's best to wait until mid-September to plant spinach seeds.
-- The most complete guide to growing vegetables you'll ever find in just 7 pages. For this time of year, it includes important advice about rotating crops to prevent disease and pest build-up:
"Finally, make it a habit to change the location of crops each year. Rotating crops in the garden not only enhances soil fertility, but it can be effective against insect and disease pests that develop on a narrow range of vegetable plants. Moving crops to different sites isolates such pests from their food sources. This practice reduces the chances that soil-borne insect and disease pests will gain a permanent foothold in your garden."
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Cover cropping guidelines
. This is such a good practice to improve soil health. If you have a spot that's not going to be planted for fall, designate it for a cover crop.
-- Unlike most of the Hort Center, the Water Efficient Landscape area is open to the public during normal Fair Oaks Park hours. Check it out online or on site for ideas on planting natives and other perennials that can beautify your garden while using little water. Again, fall's the best time for planting perennials!
In addition to the Sacramento master gardeners' website, some other good regional resources for fall planting:
-- Peaceful Valley Farm and Garden Supply, at groworganic.com , has a number of how-to videos. Here's one on choosing and planting garlic , a timely topic.
-- The UCCE master gardeners of El Dorado County at 9 a.m. this Saturday are offering a free Zoom class, "Fall and Winter Vegetables Part 2." Go to their Facebook page to register and get the link. Part 1, held Aug. 22, was recorded and can be viewed on YouTube at the UCCE Central Sierra site .
-- And Farmer Fred Hoffman has some great reminders in his post "What NOT to do in the garden in fall."
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Food in My Back Yard Series
April 22: Should you stock up on fertilizer? (Yes!)
April 15: Grow culinary herbs in containers
April 8: When to plant summer vegetables
April 1: Don't be fooled by these garden myths
March 25: Fertilizer tips: How to 'feed' your vegetables for healthy growth
March 18: Time to give vegetable seedlings some more space
March 11: Ways to win the fight against weeds
March 4: Potatoes from the garden
Feb. 25: Plant a fruit tree now -- for later
Feb. 18: How to squeeze more food into less space
Feb. 11: When to plant? Consider staggering your transplants
Feb. 4: Starting in seed starting
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Garden Checklist for week of April 27
Once the clouds clear, get to work. Spring growth is in high gear.
* Set out tomato, pepper and eggplant transplants.
* From seed, plant beans, beets, cantaloupes, carrots, corn, cucumbers, melons, pumpkins, radishes and squash. Plant onion sets.
* In the flower garden, plant seeds for asters, cosmos, celosia, marigolds, salvia, sunflowers and zinnias. Transplant petunias, zinnias, geraniums and other summer bloomers.
* Plant perennials and dahlia tubers for summer bloom. Late April is about the last chance to plant summer bulbs, such as gladiolus and tuberous begonias.
* Transplant lettuce and cabbage seedlings.
* Weed, weed, weed! Don’t let unwanted plants go to seed.
* April is the last chance to plant citrus trees such as dwarf orange, lemon and kumquat. These trees also look good in landscaping and provide fresh fruit in winter.
* Feed citrus trees with a low dose of balanced fertilizer (such as 10-10-10) during bloom to help set fruit. Keep an eye out for ants.
* Apply slow-release fertilizer to the lawn.
* Thoroughly clean debris from the bottom of outdoor ponds or fountains.
* Start thinning fruit that's formed on apple and stone fruit trees -- you'll get larger fruit at harvest (and avoid limb breakage) if some is thinned now. The UC recommendation is to thin fruit when it is about 3/4 of an inch in diameter. Peaches and nectarines should be thinned to about 6 inches apart; smaller fruit such as plums and pluots can be about 4 inches apart. Apricots can be left at 3 inches apart. Apples and pears should be thinned to one fruit per cluster of flowers, 6 to 8 inches apart.
* Azaleas and camellias looking a little yellow? If leaves are turning yellow between the veins, give them a boost with chelated iron.
* Trim dead flowers but not leaves from spring-flowering bulbs such as daffodils and tulips. Those leaves gather energy to create next year's flowers. Also, give the bulbs a fertilizer boost after bloom.
* Pinch chrysanthemums back to 12 inches for fall flowers. Cut old stems to the ground.
* Mulch around plants to conserve moisture and control weeds.