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Dig In: Garden checklist for week of Aug. 18

Below-average temperatures could prolong season for tomatoes, other summer vegetables

Sacramento Digs Gardening
BY Debbie Arrington PUBLISHED AUG 17, 2024

Continue harvesting summer vegetables to keep the plants producing, especially now that temperatures have moderated. This beauty is Listada de Gandia eggplant, an heirloom variety. Kathy Morrison

Compared to our scorching July, August feels like a breeze. This coming week looks especially appealing with Sacramento’s high temperatures expected to be as much as 10 degrees below average for mid August.

According to the National Weather Service, Sacramento can expect to enjoy several days in the 80s or low 90s. Only one day – Tuesday, Aug. 20 at 94 degrees – is forecast above average for this date. Normal for mid-August: 92.

This week could be a sweet spot for tomatoes and other summer favorites. If they have blooms, they may actually get fertilized. The tomato pollen won’t dry out too fast (a problem in triple-digit weather) and bees will be visiting the squash flowers. We could see tomatoes and squash for Halloween and Thanksgiving.

Make the most of this comfortable weather and get to work:

* Harvest tomatoes, beans, squash, pepper and eggplants to prompt plants to keep producing.

* Give your plants a deep watering twice a week, more if planted in containers. Also, give them a boost with phosphate-rich fertilizer to help fruiting. (Always water before feeding.)

*Feed citrus trees their last round of fertilizer for the year. This will give a boost to the fruit that’s now forming.

* Watch out for caterpillars and hornworms in the vegetable garden. They can strip a plant bare in one day. Pick them off plants by hand in early morning or late afternoon.

* Mulch can be your garden’s best friend – it conserves moisture while blocking out weeds. But don’t let mulch mound around stalks, stems or trunks. That can promote rot.

* Camellia leaves looking a little yellow? Feed them some chelated iron. That goes for azaleas and gardenias, too.

* Pinch off dead flowers from perennials and annuals to lengthen their summer bloom.

* Pick up after your fruit trees. Clean up debris and dropped fruit; this cuts down on insects and prevents the spread of brown rot. Then feed fruit trees with slow-release fertilizer for better production for next year.

* To prolong bloom into fall, feed begonias, fuchsias, annuals and container plants.

* Fertilize fall-blooming perennials, too. Chrysanthemums can be fed until the buds start to open.

* Cut off spent blooms from roses, annuals and perennials, then give them a boost of fertilizer.

* Indoors, start seedlings for fall vegetable planting, including bunching onion, cabbage, broccoli, cauliflower, kale, radicchio and lettuce.

* Sow seeds of perennials in pots for fall planting including yarrow, coneflower and salvia.

* In the garden, direct seed beets, carrots, leaf lettuce and turnips.

* Plant potatoes.

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Garden checklist for week of May 10

Take it easy during that high heat – then get to work! Your garden is calling.

* Remember to irrigate your tender transplants. 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 cabbage, 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. 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.

* 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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