Heat is here; help your garden cope with so much sun
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| Bees are important pollinators of melons, above, and squash, but they are likely to be less active in hot weather, so give your plants a hand with pollination. (Photo: Kathy Morrison) |
Hot: That’s the official Sacramento forecast for this week. What would you expect?
As the National Weather Service’s Sacramento office tweeted Saturday: “How confident are we that this weekend will be hot? It’s a sure bet it will feel like July.”
Triple-digit highs continue at least Sunday and maybe Monday before a slight cooldown to the mid 90s – normal for mid-July in Sacramento. According to the weather service, overnight lows will dip down to around 60 each night; that will help temper those sizzling afternoons.
Few if any clouds are in the forecast, so expect lots of blasting sun. Consider erecting some temporary shade for peppers, eggplant, tomatoes and other plants prone to sunburn. They’ll appreciate it.
Watch out for your own health, too. Limit outdoor activity to early morning or early evening. Wear sun protection. Don't overdo it; heat stress is dangerous.
* Water early in the morning, preferably before 8 a.m. That will cut down on evaporation.
* One good thing about hot days: Most lawns stop growing when temperatures top 95 degrees. Keep mower blades set on high. Longer grass needs less irrigation; it shades its own roots.
* Keep your vegetable garden watered, mulched and weeded.
* Don’t let tomatoes wilt or dry out completely. Give tomatoes a deep watering two to three times a week. (Note: Tomatoes and other broad-leafed vegetables sometimes wilt in the afternoon as a survival technique. They should pop back into form after sundown. Wilting in the morning in when you should worry about them -- and water them.)
* When temperatures cool down later this week, fertilize vegetables and blooming annuals, perennials and shrubs to give them a boost. Feeding flowering plants every other week will extend their bloom. Always water before applying fertilizer.
* Harvest vegetables promptly to encourage plants to produce more. Squash especially tends to grow rapidly in hot weather. Keep an eye on zucchini.
* If your melons and squash aren't setting fruit, give the bees a hand. With a small, soft paintbrush, gather some pollen from male flowers, then brush it inside the female flowers, which have a tiny swelling at the base of their petals. (That’s the embryo melon or squash.) Within days, that little swelling should start growing.
* Remove spent flowers from roses, daylilies and other bloomers as they finish flowering.
* Pinch blooms from basil so the plant will grow more leaves.
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Garden Checklist for week of Nov. 3
November still offers good weather for fall planting:
* If you haven't already, it's time to clean up the remains of summer. Pull faded annuals and vegetables. Prune dead or broken branches from trees.
* Now is the best time to plant most trees and shrubs. This gives them plenty of time for root development before spring growth. They also benefit from fall and winter rains.
* Set out cool-weather annuals such as pansies and snapdragons.
* Lettuce, cabbage and broccoli also can be planted now.
* Plant garlic and onions.
* Keep planting bulbs to spread out your spring bloom. Some possible suggestions: daffodils, crocuses, hyacinths, tulips, anemones and scillas.
* This is also a good time to seed wildflowers and plant such spring bloomers as sweet pea, sweet alyssum and bachelor buttons.
* Rake and compost leaves, but dispose of any diseased plant material. For example, if peach and nectarine trees showed signs of leaf curl this year, clean up under trees and dispose of those leaves instead of composting.
* Save dry stalks and seedpods from poppies and coneflowers for fall bouquets and holiday decorating.
* For holiday blooms indoors, plant paperwhite narcissus bulbs now. Fill a shallow bowl or dish with 2 inches of rocks or pebbles. Place bulbs in the dish with the root end nestled in the rocks. Add water until it just touches the bottom of the bulbs. Place the dish in a sunny window. Add water as needed.
* Give your azaleas, gardenias and camellias a boost with chelated iron.
* For larger blooms, pinch off some camellia buds.
* Prune non-flowering trees and shrubs while dormant.
* To help prevent leaf curl, apply a copper fungicide spray to peach and nectarine trees after they lose their leaves this month. Leaf curl, which shows up in the spring, is caused by a fungus that winters as spores on the limbs and around the tree in fallen leaves. Sprays are most effective now.
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