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Overnight lows near freezing put poinsettias at risk
This display by the Sacramento County master gardeners shows how to protect a young citrus tree with frost cloth and/or old-fashioned Christmas lights. In practice, the cloth would be pulled completely over the tree on all sides. Kathy Morrison
According to the National Weather Service, Sacramento and its surrounding areas can expect areas of frost in the early hours of the morning Saturday through Tuesday. We’re officially under a frost warning from 11 p.m. Friday through Saturday morning.
Overnight lows are expected to dip into the low 30s every night from Friday through Tuesday.
“Near to below freezing overnight/morning temperatures will return to the Valley tonight and continue through the middle of next week,” tweeted the NWS Sacramento office on Friday morning. “Be sure to take the necessary precautions to protect pets, plants and people, especially for the vulnerable populations!”
In Sacramento, the lowest temperature currently predicted is 33 degrees in the wee hours of Tuesday morning. That’s not quite freezing, but cold enough to burn the leaves and bracts of tender poinsettias. It also can speed the decay of decorative pumpkins. To avoid damage to either, bring them indoors.
Also provide frost protection for tender new seedlings such as newly transplanted cabbage or lettuce. Slip a plastic milk jug over the whole plant; it becomes an instant mini greenhouse.
Provide protection for succulents or any remaining pepper or tomato plants. They’ll definitely feel the chill.
Bring container plants indoors or put under cover. Use cloth sheets (not plastic) for temporary protection. Make sure to remove these sheets during the day so plants don’t overheat and smother.
Except for succulents, water frost-tender plants in the late afternoon before a chilly night is predicted. That extra moisture raises the soil temperature just enough to avoid frost burn.
For more tips on freezing and frost: https://ipm.ucanr.edu/PMG/GARDEN/ENVIRON/frostdamage.html.
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Flowers in My Back Yard Series
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April 28: Majestic Matilija poppy is worth a look
April 21: Celebrate roses, America's favorite flower
April 14: Small flowers with outsized impact
April 7: Calendulas do double duty
April 3: Make Easter lilies last for years to come
March 31: In praise of a pollinator magnet (small-leaf salvias)
March 24: Azaleas brighten shady spots
March 17: The perfect flower for beginners? Try zonal geraniums
March 10: Keep camellias happy for years to come
March 3: Fruit tree blossoms are a fleeting joy
Feb. 27: Are your roses looking rusty?
Feb. 24: Treasure spring daffodils now and for years to come
Feb. 17: How and why to grow wildflowers
Feb. 10: Let's talk Valentine's Day roses
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Garden checklist for week of May 17
With an eye on warmer weather to come, continue to work on the summer vegetable garden:
* Remember to irrigate your tender transplants. The wind can quickly dry out young plants. Seedlings need consistent moisture. Deep watering will help build strong roots and healthy plants. Water early in the morning for best results.
* Plant, plant, plant! It’s prime planting season in the Sacramento area. Time to set out those tomato transplants along with peppers and eggplants. Pinch off any flowers on new transplants to make them concentrate on establishing roots instead of setting premature fruit.
* Direct-seed melons, cucumbers, summer squash, corn, radishes, pumpkins and annual herbs such as basil.
* Harvest lettuce, peas and green onions.
* In the flower garden, direct-seed sunflowers, cosmos, salvia, zinnias, marigolds, celosia and asters. (You also can transplant seedlings for many of the same flowers.)
* Plant dahlia tubers.
* Transplant petunias, marigolds and perennial flowers such as astilbe, calibrachoa, columbine, coneflowers, coreopsis, rudbeckia and verbena.
* Keep an eye out for slugs, snails, earwigs and aphids that want to dine on tender new growth.
* Feed summer bloomers with a balanced fertilizer.
* For continued bloom, cut off spent flowers on roses as well as other flowering plants.
* Put your veggie garden on a regular diet. Set up a monthly feeding program, and keep track on your calendar. Make sure to water your garden before applying any fertilizer to prevent “burning” your plants.
* As spring-flowering shrubs finish blooming, give them a little pruning to shape them, removing old and dead wood. Lightly trim azaleas, fuchsias and marguerites for bushier plants.
* Don’t forget to weed! Those invaders are growing fast.
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Send us a gardening question, a post suggestion or information about an upcoming event. sacdigsgardening@gmail.com
Food in My Back Yard (FIMBY) Series
Lessons learned during a year of edible gardening
WINTER
Is edible gardening possible indoors?
Hints for choosing tomato seeds
Why winter is the perfect time to plant fruit trees
When to plant? Consider staggering your transplants
How to squeeze more food into less space
Plant a fruit tree now -- for later
Win the weed war by tackling them in winter
Tips for planting bare-root trees, shrubs and vegetables
Time to give vegetable seedlings some more space
Ways to win the fight against weeds
FALL
Dec. 16: Add asparagus to your edible garden
Dec. 9: Soggy soil and what to do about it
Dec. 2: Plant artichokes now; enjoy for years to come
Nov. 25: It's late November, and your peach tree needs spraying
Nov. 18: What to do with all those fallen leaves?
Nov. 11: Prepare now for colder weather in the edible garden
Nov. 4: Plant a pea patch for you and your garden
Oct. 27: As citrus season begins, advice for backyard growers
Oct. 20: Change is in the autumn air
Oct. 13: We don't talk (enough) about beets
Oct. 6: Fava beans do double duty
Sept. 30: Seeds or transplants for cool-season veggies?
Sept. 23: How to prolong the fall tomato harvest
SUMMER
Sept. 16: Time to shut it down?
Sept. 9: How to get the most out of your pumpkin patch
Sept. 2: Summer-to-fall transition time for evaluation, planning
Aug. 26: To pick or not to pick those tomatoes?
Aug. 19: Put worms to work for you
Aug. 12: Grow food while saving water
Aug. 5: Enhance your food with edible flowers
July 29: Why won't my tomatoes turn red?
July 22: A squash plant has mosaic virus, and it's not pretty
July 15: Does this plant need water?
July 8: Tear out that sad plant or baby it? Midsummer decisions
July 1: How to grow summer salad greens
June 24: Weird stuff that's perfectly normal
SPRING
June 17: Help pollinators help your garden
June 10: Battling early-season tomato pests
June 3: Make your own compost
May 27: Where are the bees when you need them?
May 20: How to help tomatoes thrive on hot days
May 13: Your plants can tell you more than any calendar can
May 6: Maintain soil moisture with mulch for garden success
April 29: What's (already) wrong with my tomato plants?
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
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