Red-hot start could make July challenging
A two-tone zinnia catches the early morning light. There's still time to plant zinnias and other flowers for summer color, but wait until it cools off a bit later in the week. Kathy Morrison
Stay hydrated. That advice applies both to plants and people as we’re on high heat alert through Sunday night.
According to the National Weather Service, Sacramento is in the midst of its first triple-digit heat wave of 2023. Downtown hit 104 degrees Friday and 107 is forecast Saturday. Some Sacramento area communities could see 110 degrees.
Last Sunday (June 25), Sacramento’s high was only 76 degrees. That’s a 30-degree jump.
June saved its hottest day for last. “At 1:30 p.m. today, downtown Sac hit 100ºF!! First time this year!” tweeted the NWS Sacramento office on Friday afternoon. “We just ended a 293-day streak of below 100 temps. This is the 2nd longest streak since 2000. HOT DOG!”
Fortunately, these triple-digit days won’t last. By Tuesday’s Fourth of July holiday, Sacramento’s forecast high is 94 degrees. Normal for July: 92.
Take advantage of cooler temperatures in the early morning to get things done. (Or wait until next weekend if possible.)
* Keep your vegetable garden watered, mulched and weeded. Water before 8 a.m. to reduce the chance of fungal infection and to conserve moisture.
* Don’t fertilize during a heat wave; wait a week before feeding hungry veggies.
* Don’t let tomatoes wilt or dry out completely. Give tomatoes a deep watering two to three times a week.
* Avoid blossom end rot by keeping fast-developing vegetables evenly watered.
* Harvest vegetables promptly to encourage plants to produce more. Squash especially tends to grow rapidly in hot weather. Keep an eye on zucchini.
* Expect a gap in tomato production; pollen tends to dry out when temperatures hit 95 degrees and fewer tomatoes will set.
* 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.
* Pinch back chrysanthemums for bushy plants and more flowers in September.
* Remove spent flowers from roses, daylilies and other bloomers as they finish flowering.
* Pinch off blooms from basil so the plant will grow more leaves.
* Later in the week, plant petunias, snapdragons, zinnias and marigolds for instant summer color.
* From seed, plant corn, pumpkins, radishes, winter squash and sunflowers. Keep seedlings evenly moist.
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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.