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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 April 21

This week there’s plenty to keep gardeners busy. With no rain in the immediate forecast, remember to irrigate any new transplants.

* Weed, weed, weed! Get them before they flower and 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.

* 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.

* Spring brings a flush of rapid growth, and that means your garden is really hungry. Feed shrubs and trees with a slow-release fertilizer. Or mulch with a 1-inch layer of compost.

* 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.

* From seed, plant beans, beets, cantaloupes, carrots, corn, cucumbers, melons, 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.

* Mid to late April is about the last chance to plant summer bulbs, such as gladiolus and tuberous begonias.

* Transplant lettuce seedlings. Choose varieties that mature quickly such as loose leaf.

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