Warren Roberts is superintendent emeritus of the UC Davis Arboretum
and quite a raconteur. (Courtesy UC Davis Arboretum)
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Dig In: Garden Checklist
For week of March 19:
Spring will start a bit soggy, but there’s still plenty to do between showers:
* Fertilize roses, annual flowers and berries as spring growth begins to appear.
* Watch out for aphids. Wash off plants with strong blast from the hose.
* Pull weeds now! Don’t let them get started. Take a hoe and whack them as soon as they sprout.
* Prepare summer vegetable beds. Spade in compost and other amendments.
* Prune and fertilize spring-flowering shrubs after bloom.
* Feed camellias at the end of their bloom cycle. Pick up browned and fallen flowers to fight blossom blight.
* Feed citrus trees as they start to blossom.
* Cut back and fertilize perennial herbs to encourage new growth.
* Seed and renovate the lawn (if you still have one). Feed cool-season grasses such as bent, blue, rye and fescue with a slow-release fertilizer. Check the irrigation system and perform maintenance. Make sure sprinkler heads are turned toward the lawn, not the sidewalk.
* In the vegetable garden, transplant lettuce and kale.
* Seed chard and beets directly into the ground.
* Plant summer bulbs, including gladiolus, tuberous begonias and callas. Also plant dahlia tubers.
* Shop for perennials. Many varieties are available in local nurseries and at plant events. They can be transplanted now while the weather remains relatively cool.
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