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Sprinkler time? Check soil first


Add mulch now to help trees later.
(Photo courtesy Sacramento Tree Foundation)
Despite dry weather, hold off on irrigation a little longer



Is it time to turn on the sprinklers? Check the soil before you water.

So say Sacramento irrigation experts. Despite our unusually dry February, the ground retains moisture and plants may not be as thirsty as we think.

“With the weather recently being unseasonably warm, we urge people to actually check soil moisture with a moisture meter, screwdriver or by using a hand shovel to dig down six inches to feel the soil,” says Amy Talbot, water efficiency project manager for the Regional Water Authority. “It might be warmer than usual and the soil might look drier on the surface, but the days are still shorter and the nights very cool with moisture in the air.

“It’s likely your landscape does not need to be watered, but the only way to know for sure is to check. If your landscape does need water, we recommend hand watering so that you deliver water only to the plants that really need it.”

The RWA is the umbrella organization over 24 water providers in the greater Sacramento area. We’re in the midst of a very dry streak with no measurable precipitation in nearly four weeks.

Is this the start of another drought? Too early to tell, say experts. But it’s not too early to get your home and garden water smart.

Now is a good time to prepare for dry and hotter weather to come. Summer will be here before we know it.

“Here are some tips for what customers can do right now to prepare their landscape for hotter days and make the most of every drop,” Talbot says.

1. Tune up sprinklers and drip irrigation by turning them on one zone at a time and looking for broken, clogged or missing sprinkler heads or drip lines.

2. Consider upgrading traditional sprinklers with high-efficiency rotator sprinklers, “which can help you use 30% less water every time you turn on your sprinklers and have healthier plants,” Talbot says. “Rotator sprinklers deliver heavy droplets of water at a slower rate that is more easily absorbed by the soil.”

3. To your soil, add plenty of compost and amendments to increase the nutrients available to your plants. “These act as a soil sponge, absorbing and holding water,” she adds.

4. Layer the mulch, “which is like icing on a cake, because it keeps the soil moist the way icing keeps a cake moist,” Talbot says. “Mulch slows evaporation, allowing water to sink into the soil, moderates soil temperature and breaks down into nutrients for plants. We recommend adding two to three inches of organic mulch around trees and plants.”

More information:
www.rwah2o.org .

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Garden checklist for week of May 31

Remember to water early. No more rain is in the immediate forecast.

* It’s not too late to transplant tomatoes, peppers, eggplant or other summer favorites. Make sure they stay hydrated.

* From seed, plant corn, melons, pumpkins, radishes, squash and sunflowers.

* Plant basil to go with your tomatoes.

* Transplant summer annuals such as petunias, marigolds and zinnias.

* It’s also a good time to transplant perennial flowers including astilbe, columbine, coneflowers, coreopsis, dahlias, rudbeckia, salvia and verbena.

* Let the grass grow longer. Set the mower blades high to reduce stress on your lawn during summer heat. To cut down on evaporation, water your lawn deeply during the early hours of the morning, between 2 and 8 a.m.

* Tie up vines and stake tall plants such as gladiolus and lilies. That gives their heavy flowers some support.

* Dig and divide crowded bulbs after the tops have died down.

* Feed summer flowers with a slow-release fertilizer.

* Mulch, mulch, mulch! This “blanket” keeps moisture in the soil longer and helps your plants cope during hot weather.

* Cut back fruit-bearing canes on berries.

* Feed camellias, azaleas and other acid-loving plants. Mulch to conserve moisture and reduce heat stress.

* Cut back Shasta daisies after flowering to encourage a second bloom in the fall.

* Trim off dead flowers from rose bushes to keep them blooming through the summer. Roses also benefit from deep watering and feeding now. A top dressing of aged compost will keep them happy. It feeds as well as keeps roots moist.

* Pinch back chrysanthemums for bushier plants with many more flowers in September.

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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

Starting in seed starting

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

Potatoes from the garden

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