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Dig In: Garden checklist for week of Aug. 16

The heat is on; help your garden cope

Sacramento Digs Gardening
BY Debbie Arrington PUBLISHED AUG 15, 2020

Shade cloth hung in front of tomato plants can help cut the sun's intensity. (Photo: Kathy Morrison)

Some like it hot -- but not this hot.

This is expected to be the hottest week of the year (so far). The National Weather Service has issued an excessive heat warning, effective through 9 p.m. Wednesday.

Until then, expect daily temperatures to top 106 degrees each day, peaking at 110 on Tuesday. Thursday is forecast to reach 102 degrees before the triple-digit streak ends (maybe) on Friday, which is predicted to be "only" 98.

While people may retreat indoors to air conditioning (or at least shade), our gardens can not. They're dependent on us to make them as comfortable as possible.

* Deep water in the early morning. Pay extra attention to plants in containers; they may need extra water daily.
* Check soil moisture and make sure drip irrigation and sprinklers are getting water where needed. If you can't plunge a 6-inch screwdriver into the ground, it needs more water.
* Mosquitoes love this weather. Wear repellent while working outdoors. Empty any containers that hold water such as saucers under pots that may serve as mosquito breeding areas.
* Watch out for sunburn on tomatoes, peppers and eggplants. Create temporary shade structures to shield developing fruit from harsh afternoon rays.
* Red tomatoes won't turn completely red in these conditions. Harvest mature tomatoes and let them redden on your kitchen counter.
* Pick up any dropped fruit; it attracts pests and promotes disease. (Plus it rots quickly in this heat.)
* Don't mow the lawn; it's not growing in this heat. The longer blades shade the roots and help the lawn cope with searing sun.
* Put off any planting or transplanting until conditions cool.
* Still got the urge to garden? Start seeds of cool-weather vegetables and flowers indoors. They'll be ready to go outdoors when temperatures are much more favorable.

For more on helping your garden cope with the heat, see Kathy's post from Thursday .

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Garden Checklist for week of May 19

Temperatures will be a bit higher than normal in the afternoons this week. Take care of chores early in the day – then enjoy the afternoon. It’s time to smell the roses.

* Plant, plant, plant! It’s prime planting season in the Sacramento area. If you haven’t already, it’s 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 cabbage, lettuce, peas and green onions.

* In the flower garden, direct-seed sunflowers, cosmos, salvia, zinnias, marigolds, celosia and asters.

* Plant dahlia tubers. Other perennials to set out include verbena, coreopsis, coneflower and astilbe.

* Transplant petunias, marigolds and perennial flowers such as astilbe, columbine, coneflowers, coreopsis, dahlias, 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.

* Don’t forget to water. Seedlings need moisture. Deep watering will help build strong roots and healthy plants.

* Add mulch to the garden to help keep that precious water from evaporating. Mulch also cuts down on weeds. But don’t let it mound around the stems or trunks of trees or shrubs. Leave about a 6-inch to 1-foot circle to avoid crown rot or other problems.

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