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‘Weeds: The Good, the Bad and the Ugly’


Green weed with white flowers
It’s pretty but it’s a thug: Bindweed. (Photo: Kathy Morrison)
Nevada County master gardeners offer free virtual workshop

Can you tell a good plant from an invasive weed? How do you stop garden thugs from taking over your landscape?

Learn about the world of weeds and how they affect our gardens – and lives – during a free virtual workshop, presented by the UC Cooperative Extension Master Gardeners of Nevada County.

Set for 9 am. Saturday, July 10, “Weeds: The Good, The Bad, The Ugly” will explore the world of invasive plants with an eye for the weeds most likely to pop up in Northern California gardens.

“Weeds follow human habitation,” explain the master gardeners. “Sometimes unsightly, sometimes daunting, weeds crowd out desirable plants and cause considerable frustration for gardeners and farmers.”

What can a gardener do?

“While they can be difficult to eradicate, there are safe ways to control your weeds,” say the master gardeners. “Despite the bad and the ugly, weeds may also fit into our landscapes as beneficial additions to gardeners, wildlife and soil health.”

Yes, there are good weeds!

The two-hour workshop is free and no advance registration is necessary. Find the link at:
http://ncmg.ucanr.org/ . Zoom meeting ID is 870 4333 4646.

The weeds workshop is the first of three July virtual presentations offered by the Nevada County master gardeners, all on Saturdays. Also included in the series are: “Garden Makeover: Lawn to Landscape,” 9 a.m. July 24; and “Softwood Propagation,” 9 a.m. July 31.

Details: http://ncmg.ucanr.org/ .

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Dig In: Garden checklist for week of Jan. 29

Bundle up and get work done!

* Prune, prune, prune. Now is the time to cut back most deciduous trees and shrubs. The exceptions are spring-flowering shrubs such as lilacs.

* Now is the time to prune fruit trees, except apricot and cherry trees. Clean up leaves and debris around the trees to prevent the spread of disease.

* Prune roses, even if they’re still trying to bloom or sprouting new growth. Strip off any remaining leaves, so the bush will be able to put out new growth in early spring.

* Prune Christmas camellias (Camellia sasanqua), the early-flowering varieties, after their bloom. They don’t need much, but selective pruning can promote bushiness, upright growth and more bloom next winter. Feed with an acid-type fertilizer. But don’t feed your Japonica camellias until after they finish blooming next month. Feeding while camellias are in bloom may cause them to drop unopened buds.

* Clean up leaves and debris around your newly pruned roses and shrubs. Put down fresh mulch or bark to keep roots cozy.

* Apply horticultural oil to fruit trees to control scale, mites and aphids. Oils need 24 hours of dry weather after application to be effective.

* This is also the time to spray a copper-based oil to peach and nectarine trees to fight leaf curl. Avoid spraying on windy days.

* Divide daylilies, Shasta daisies and other perennials.

* Cut back and divide chrysanthemums.

* Plant bare-root roses, trees and shrubs.

* Transplant pansies, violas, calendulas, English daisies, snapdragons and fairy primroses.

* In the vegetable garden, plant fava beans, head lettuce, mustard, onion sets, radicchio and radishes.

* Plant bare-root asparagus and root divisions of rhubarb.

* In the bulb department, plant callas, anemones, ranunculus and gladiolus for bloom from late spring into summer.

* Plant blooming azaleas, camellias and rhododendrons. If you’re shopping for these beautiful landscape plants, you can now find them in full flower at local nurseries.

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