Warm days, nights will prompt rapid growth of summer vegetables
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Straw is an excellent mulch for summer squash and other summer vegetables: It's light but helps prevent the soil from drying out. And that droopy leaf at left? That's a normal reaction to afternoon heat by squash, melons and tomato plants.
The time to worry (and water) is when they droop in early morning. (Photo: Kathy Morrison) |
Mid May will feel a lot like mid June as Sacramento settles into a pattern of warm, dry days with above-normal temperatures.
According to the National Weather Service, Sacramento will see three or four days in the low 90s this week with the remainder in the mid to high 80s. Overnight lows are warm, too, with some nights staying above 60. Historically in May, Sacramento averages highs of 80 degrees and lows of 51.
Those above-average nights mean soil temperature will be warming, too. Expect rapid growth from tomatoes, peppers, eggplant and squash as they soak up that early heat.
While that heat is good for summer crops, it likely will push remaining cool-season vegetables over the top. Harvest cabbage, lettuce, kale, broccoli, beets, carrots, chard, spinach and similar veggies before they go to seed. High temperatures also can turn lettuce and other leafy greens bitter. Pick them now and store in the refrigerator crisper drawer.
Those 90-degree days will crisp roses and other spring blooms. Take some time this week for clean up. Get chores done early to avoid afternoon sun.
* Deadheading – cutting off spent flowers – will extend bloom season for many shrubs, especially roses. Expect another round of roses six to eight weeks after deadheading re-blooming varieties.
* Keep an eye out for slugs, snails, earwigs and aphids that want to dine on tender new growth.
* Feed summer flowering shrubs and perennials with a balanced fertilizer.
* Are birds picking your fruit off trees before it’s ripe? Try hanging strips of aluminum foil on tree branches. The shiny, dangling strips help deter birds from making themselves at home.
* Run the sprinklers early in the day – before 8 a.m. if possible – to conserve water and minimize plant diseases.
* Mulch around trees and shrubs as well as plants in the vegetable garden. Mulch conserves moisture and cuts down on weeds.
* Transplant tomatoes, 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.
* In the flower garden, direct-seed sunflowers, cosmos, salvia, zinnias, marigolds, celosia and asters.
* Transplant petunias, marigolds and perennial flowers such as astilbe, columbine, coneflowers, coreopsis, dahlias, rudbeckia and verbena.
* Don’t forget to water. Seedlings need moisture. Deep watering will help build strong roots and healthy plants.
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Food in My Back Yard Series
May 13: Your plants can tell you more than any calendar can
May 6: Maintain soil moisture with mulch for garden success
April 29: What's (already) wrong with my tomato plants?
April 22: Should you stock up on fertilizer? (Yes!)
April 15: Grow culinary herbs in containers
April 8: When to plant summer vegetables
April 1: Don't be fooled by these garden myths
March 25: Fertilizer tips: How to 'feed' your vegetables for healthy growth
March 18: Time to give vegetable seedlings some more space
March 11: Ways to win the fight against weeds
March 4: Potatoes from the garden
Feb. 25: Plant a fruit tree now -- for later
Feb. 18: How to squeeze more food into less space
Feb. 11: When to plant? Consider staggering your transplants
Feb. 4: Starting in seed starting
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Garden Checklist for week of May 18
Get outside early in the morning while temperatures are still cool – and get to work!
* 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. Transplant seedlings for many of the same flowers.
* Plant dahlia tubers.
* 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.
* Are birds picking your fruit off trees before it’s ripe? Try hanging strips of aluminum foil on tree branches. The shiny, dangling strips help deter birds from making themselves at home.
* 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.