Spring starts with rapid warm-up; what does that mean for your garden?
Freesias in bloom herald the beginning of spring, which officially starts Thursday, March 20. Kathy Morrison
How will we remember the Winter of ’25? Was it too wet? Too dry? Just right?
Thanks to “March Miracle” storm systems dumping snow on the Sierra, our Water Year picture looks like it’s found the Goldilocks zone. But Sacramento could still use some more rain this spring.
This winter, Sacramento totaled just above 9.5 inches of precipitation; that’s a little below average. So far, our Water Year (which started Oct. 1) has totaled 13.29 inches in Sacramento; average for that same period is 14.81 inches.
More showers should be expected. Historically, March averages 2.75 inches of rain in Sacramento with another 1.15 inches in April.
Thankfully, the Sierra snowpack looks healthy and local reservoirs are relatively full. Compared to recent drought years, we’re in a good place water-wise heading into the drier months ahead. That’s good new for farmers and gardeners.
In the next few days, dramatic shifts in temperatures could cause some complications, especially for tender seedlings.
According to the National Weather Service, spring will start with a jump in temperatures. Sacramento will go from 61 degrees on March 19 (today, the last official day of winter) to 81 degrees Monday, March 24. That warming trend will start on Saturday and Sunday with a weekend in the 70s before zipping right into the 80s. Make sure new transplants stay hydrated.
(And many of us experienced hail last week!)
Don’t let those warm temperatures fool you; it’s still too early to plant tomatoes. Soil temperature has to rise, too. So far this March, our soil temperature has been trending low.
According to USDA, the average soil temperature on Wednesday in Sacramento County was about 53 degrees F.; that’s more than 3 degrees lower than average for the last day of winter.
Tomato roots need temperatures comfortably in the mid 60s; our soil won’t reach those temperatures until late in April or early May.
Want to plant sooner? Soil in raised beds warms faster. So does soil in black plastic containers; the black plastic absorbs heat. Choose those options for your earliest transplants.
For more weather updates: https://www.weather.gov/sto/
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Food in My Back Yard Series
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 13
Enjoy this spring weather – and get to work! Your garden needs you!
* Start setting out tomato, pepper and eggplant transplants.
* From seed, plant beans, beets, cantaloupes, carrots, corn, cucumbers, melons, radishes, and winter and summer 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.
* Plant summer bulbs, such as gladiolus and tuberous begonias.
* Smell orange blossoms? 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.
* 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.
* Weed, weed, weed! Don’t let unwanted plants go to seed.