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Learn about oaks, more at UC Davis Arboretum

Learn all about  the UC Davis Arboretum's oaks -- such as the ones reflected here in Putah Creek -- during UC Davis Biodiversity Day on Saturday. Earlier, on Wednesday, take a free Walk with Warren, also in the Arboretum. (Photo: Kathy Morrison)
Take a winter 'Walk with Warren,' bring whole family to Learning Day

See what’s happening at the UC Davis Arboretum – and learn a lot – during two events this week.

At noon Wednesday, Feb. 12, everybody’s favorite arboretum guide, Warren Roberts, will lead a pun-filled and informative tour during his monthly “Walk with Warren.” The arboretum’s superintendent emeritus will highlight winter bloomers and early signs of spring during this free walking tour. Meet at the Arboretum Gazebo – and wear comfortable shoes.

On Saturday, Feb. 15, let the arboretum be the learning zone for your whole family during the UC Davis Biodiversity Learning Day. From 9 a.m. to 1 p.m., go behind the scenes to explore and engage with scientists and students as you learn about the diversity of life on campus. The arboretum’s exploration will take place under the trees in the Shields Oak Grove.

Join oak expert Emily Griswold on an informative tour of the grove. Play oak-centric games and win prizes. Learn about what’s inside an oak gall and much more. Admission is free.

On Learning Day, a dozen different university museums will participate in this popular event designed for all ages.

For more details and maps of both events: .


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Dig In: Garden Checklist

For week of March 26:

Sacramento can expect another inch of rain from this latest storm. Leave the sprinklers off at least another week. Temps will dip down into the low 30s early in the week, so avoid planting tender seedlings (such as tomatoes). Concentrate on these tasks before or after this week’s rain:

* Fertilize roses, annual flowers and berries as spring growth begins to appear.

* Knock off aphids with a strong blast of water or some bug soap as soon as they appear.

* 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 help corral blossom blight.

* Feed citrus trees, which are now in bloom and setting fruit.

To prevent sunburn and borer problems on young trees, paint the exposed portion of the trunk with diluted white latex (water-based) interior paint. Dilute the paint with an equal amount of cold water before application.

* 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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