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Dig In: Garden checklist for week of April 21

Sacramento Digs Gardening
BY Debbie Arrington PUBLISHED APR 20, 2019

Citrus trees benefit from a low dose of fertilizer during bloom and fruit set. (Photo: Debbie Arrington)

Spring bursts into bloom; watch out for weeds

Warmer temperatures have finally put the zing in spring.

Flowers are opening everywhere as plants respond to longer days and more sunshine. Growth speeds, too, which means keep an eye on weeds. Also, watch out for aphids, slugs and other pests that may be munching on this lush green growth.

Did you get an Easter lily? These beautiful white flowers prefer cool temperatures indoors, 60 to 65 degrees away from windows, drafts or heat. After the flowers fade, the lily can be transplanted outdoors into the garden. These bulbs prefer cool growing conditions, so plant them deep – about 6 inches. Cover the bulbs with mulch or compost in a semi-shady spot (morning sun preferred).

But don’t expect them to flower in April. In the garden, Easter lilies bloom in midsummer.

* 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.

* Ripe oranges, lemons or grapefruit may still be on the tree. Citrus tends not to flower with fruit on its branches. Finish the harvest. Pick up any dropped fruit; it attracts pests. Remember: Sacramento is under quarantine for Oriental fruit fly and Asian citrus psyllid , which means citrus can’t be moved out of county. Keep your home-grown fruit at home.

* If leaves look yellow, your citrus tree may need an iron boost. Feed with a chelated iron fertilizer.

* Weed, weed, weed! Whack them while they’re young. Don’t let unwanted invaders go to seed or grow deep roots. In particular, pull out any bindweed, bedstraw or milk thistle, which seem to grow overnight.

* Mulch around plants to conserve moisture and control weeds. Don’t mound mulch around trunks or main stems; it can cause crown rot.

* Set out tomato, pepper and eggplant transplants.

* From seed, plant beans, beets, cantaloupes, carrots, corn, cucumbers, melons, pumpkins, 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. Late April is about the last chance to plant summer bulbs, such as gladiolus and tuberous begonias.

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Garden Checklist for week of May 5

Survey your garden after the May 4 rainstorm. Heavy rain and gusty winds can break the neck of large flowers such as roses. Also:

* Keep an eye on new transplants or seedlings; they could take a pounding from the rain.

* Watch out for powdery mildew. Warmth following moist conditions can cause this fungal disease to “bloom,” too. If you see a leaf that looks like it’s dusted with powdered sugar, snip it off.

* After the storm, start setting out tomato transplants, but wait on the peppers and eggplants (they want warmer nights). Pinch off any flowers on new transplants to make them concentrate on establishing roots instead of setting premature fruit.

* 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, pumpkins, 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.

* Don’t wait; plant summer bulbs, such as gladiolus and tuberous begonias.

* Harvest cabbage, lettuce, peas and green onions.

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