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Dig In: Garden checklist for week of Aug. 6

Our yo-yo weather continues; watch out for signs of plant stress

Harvesting summer vegetables such as peppers will keep the plant producing. If you wish, leave bell peppers on the plant until they turn color -- red, yellow, orange, purple or "chocolate," depending on the variety -- and then harvest them.

Harvesting summer vegetables such as peppers will keep the plant producing. If you wish, leave bell peppers on the plant until they turn color -- red, yellow, orange, purple or "chocolate," depending on the variety -- and then harvest them. Kathy Morrison

If you liked July, you’ll love August. This month starts out with the same spiky weather pattern: Triple-digit heat on weekends and dramatic cooldowns in between.

According to the National Weather Service, Sacramento can expect 105 degrees on Sunday. But by Tuesday, we’ll be back down in the 80s. Tuesday’s forecast high is only 89 degrees – six degrees below Sacramento’s average for the first week of August and a 16-degree drop from Sunday.

That relative cool will linger through the work week – with afternoons topping out in the high 80s or very low 90s – before creeping back up to 98 degrees next Sunday, Aug. 13.

Could the worst of our summer heat soon be behind us? Averaging highs of 91 degrees, August is typically a little cooler than July. But it’s still pretty hot. Remember to stay hydrated; that advice goes for your garden, too.

Maintaining even soil moisture – not too dry or too wet – can help plants cope with the stress of not only high heat, but yo-yo temperatures.

* 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. Most tomato plants need at least 5 gallons a week.

* Give your summer veggies a boost with phosphate-rich fertilizer to help fruiting. (Always water before feeding.)

* Cracks on your tomatoes? Blame these dramatic increases in temperature. Heat spikes likely caused those splits.

* Brown spots on the bottom of tomatoes, eggplant and peppers likely are due to blossom end rot. It’s a side effect of very dry soil. Plants need moisture so their roots can absorb nutrients and form healthy fruit.

* 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.

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

* 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 crown 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.

* 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, bush beans, carrots, leaf lettuce, radishes and turnips.

* Plant potatoes.

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Garden Checklist for week of April 14

It's still not warm enough to transplant tomatoes directly in the ground, but we’re getting there.

* 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 needs nutrients. Fertilize 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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