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Trees – Page 8

Planting a Western Pecan Tree (Carya illinoi) in Southern California

Question from Frank: I’m interested in planting a Western Pecan tree in my yard and am looking for tips on soil preparation, watering, pruning… to help ensure it not only survizes but eventually fruits for me. I live on the south face of the San Gabriel Mtns north of Los Angeles (Sunset climate zone 21), […]

Dormant Spray For Low-Chill Apple Trees

Question from Robin: Truly hope this email is reaching you with a greatly improved shoulder! Question: I need to winter spray my Anna and Golden Dorsett apples both of which have loads of leaves and varying size of apples. Last year I simply stripped the leaves off my Anna (which had no apples) and proceeded […]

Borers in Alder Trees

Question from Jennifer: We have had a major problem with flat-head borers in our alder trees and have already had quite a few trees removed. We have three left, one which is hopeless but the other two can probably be saved if there is a solution. So my question, is there a solution for these […]

Sequoia Semper Soquel in Zone 18

Question from Melissa: I live in Zone 9, Santa Clarita, and love the Sequoia Semper Soquel–which is being sold at my local nursery. My research on the internet indicates that this tree prefers coastal mist/fog, but is also noted to grow in Zone 9. Can you advise on how successful this tree would be in […]

Can Torrey Pines Grow in Nevada

Question from Joe: I grew up in San Diego and love the the Torrey Pine. I have collected some seed to try to plant. I live in Nevada and was wanting to know if they will grow in a soil that has a heavy mixture of clay, gravel, rock and alkali? Would you recomend direct […]

Trouble with Avocados

Question from Monty: I live in Irvine, CA. I have several citrus and stone fruit trees espaliered in my back yard and doing fine. However, I have two avocado trees that continue to struggle (four and six years old). They get good sun, but not all day sun. There are large palm trees on either […]

Best Home Grown Plums, Apricots, and Nectarines in Southern California

Question from Jon: We had a gorgeous old plum tree in our back yard.  It had produced really great juicy plums for 1 season, but unfortunately the tree was very old and was not well cared for by the previous owner, so we had to remove it a few months ago.  It was infested with […]

Restore Health to Old Macadamia Tree

Question from Bruce: Just bought a property near Grafton It has a well established macadamia About 20 feet high,loads of fruit The tree is looking a bit pale and i would like to take the top out and give it afeed. Iran a citrus orchard for 5 years,could this tree be suffering from a magnesium […]

Evergreen Tree for a Planter

Question from Ivana: We have a large planter 6ftx6ft in the back of our building and would love to find a good evergreen accent tree. The planter is just next to parking spaces and the building so we need a tree that would not be messy and/or bear fruit or have invasive roots. We like […]

Morus Alba Winter Pruning

Question from Ron: This is our first year in new home with spendid landscaping near Lake Murray in La Mesa. Large morus alba has been pollarded over the years annually by previous owners. How close to “knuckles” should I cut the old growth back now that the tree is defoliated? Answer from Pat: Pollarding, as […]