Below-average temperatures could prolong season for tomatoes, other summer vegetables
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 Jan. 12
Once the winds die down, it’s good winter gardening weather with plenty to do:
* Prune, prune, prune. Now is the time to cut back most deciduous trees and shrubs. The exceptions are spring-flowering shrubs such as lilacs.
* Now is the time to prune fruit trees. (The exceptions are apricot and cherry trees, which are susceptible to a fungus that causes dieback. Save them until summer.) Clean up leaves and debris around the trees to prevent the spread of disease.
* Prune roses, even if they’re still trying to bloom. Strip off any remaining leaves, so the bush will be able to put out new growth in early spring.
* Clean up leaves and debris around your newly pruned roses and shrubs. Put down fresh mulch or bark to keep roots cozy.
* After the wind stops, apply horticultural oil to fruit trees to control scale, mites and aphids. Oils need 24 hours of dry weather after application to be effective.
* This is also the time to spray a copper-based fungicide to peach and nectarine trees to fight leaf curl. (The safest effective fungicides available for backyard trees are copper soap -- aka copper octanoate -- or copper ammonium, a fixed copper fungicide. Apply either of these copper products with 1% horticultural oil to increase effectiveness.)
* When forced bulbs sprout, move them to a cool, bright window. Give them a quarter turn each day so the stems will grow straight.
* Browse through seed catalogs and start making plans for spring and summer.
* Divide daylilies, Shasta daisies and other perennials.
* Cut back and divide chrysanthemums.
* Plant bare-root roses, trees and shrubs.
* Transplant pansies, violas, calendulas, English daisies, snapdragons and fairy primroses.
* In the vegetable garden, plant fava beans, head lettuce, mustard, onion sets, radicchio and radishes.
* Plant bare-root asparagus and root divisions of rhubarb.
* In the bulb department, plant callas, anemones, ranunculus and gladioli for bloom from late spring into summer.
* Plant blooming azaleas, camellias and rhododendrons. If you’re shopping for these beautiful landscape plants, you can now find them in full flower at local nurseries.