Polyphagous Shot Hole Borer and Avocados

...18 that could be used by growers in CA. He provided a link to a short publication his lab put out on orchard sanitation best practices as well as a link to information for avocado growers on the use of Hero. Hero is a pyrethroid-based pesticide. For my own backyard tree I’m going to: Make sure pruning tools are disinfected before use. This is one of the main reasons we use a qualified arborist. Avoid moving firewood around. I’m going to have to th...

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The Root Simple 2016 Holiday Gift Guide

...supervisor. Let’s say you need to do some dodgy electrical work, bad tree pruning or slice a muffin in half. The Leatherman Rebar is the tool you want. Here’s what it’s got: needlenose pliers, replaceable wire cutters, electrical crimper, knife, serrated knife, wood/metal file saw, small screwdriver. large screwdriver, phillips screwdriver, awl w/thread loop, ruler (8 inches), bottle opener, can opener, wire stripper, lanyard ring. I’m especially...

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Reader Favorite California Native: Ceanothus

...e managed to kill. It’s true that once you get it going, other than yearly pruning, you can retire to the nearest bar and rest on your gardening laurels. But getting it established can be tricky. The most common mistake is over-watering during the summer months and planting in overly fertile soil. We didn’t over-water, so how we manged to kill three of them is a Root Simple gardening mystery. That said, many of our neighbors have had no problems w...

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Our new front yard, part 6: it’s all potential at this point

...extra work for whomever is doing the maintenance, because they have to be pruning the plants back all the time to keep them in check. This isn’t only unnecessary labor, but it also wastes a good deal of fossil fuel what with the power tools and hauling, and if the clippings end up the landfill, the creation of methane gas. It may not be such a big deal in one yard, but it’s happening in thousands of yards, so the ill effects add up. The worst par...

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How to Garden With California Natives: Lessons from the 2016 Theodore Payne Garden Tour

...ive chaparral. Spacing can be tricky. You have to pay attention to nursery labels and not plant too far apart or too close together. Not that plants always perform predictably. You have to go back and edit: fill gaps in or take stuff out. The best gardens on the tour got the massing right like the Hessing/Bonfigli garden in Altadena shown in the photo above. Outdoor Rooms My favorite garden on the tour is the Loxton/Clark garden in Pasadena. It’s...

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