Marianne’s Responses
How Much Osmocote Does the Cap Hold?
Posted by Susan Worthey | June 25, 2025Hello, Could you please tell me the exact volume of the top of the Osmocote Smart Release 14-14-14 ?
Why are the leaves and stems of my Joshua Tree turning brown?
Posted by Lynne Dowling | June 12, 2025Dear Marianne, In 2020, while visiting the Grand Canyon, we purchased a packet of ‘Joshua Tree’ Seeds from a little store. We were thrilled that one germinated and developed. It has been flourishing beautifully over the past five years. However, within the last two months, we have noticed a rapid decline, with the stem turning brown and the leaves becoming ...
Can I use a foliar spray to fertilize Newport blue boxwoods?
Posted by Janice fluhr | June 9, 2025I have Peter's 20-20-20 fertiliser that I would like to dilute by adding one tablespoon to one gallon of water for a foliar spray. Is this a good idea, and can I harm the leaves by doing this? How often and when should I do this? I am thinking of doing it now, in early June.
Best uses for cedar chips
Posted by diane Jones | May 25, 2025Where is the best place to buy cedar chips in bulk? I am familiar with Chip Drop, but you can’t be picky as to what you get. Looking for cedar chips for my woodland trails to keep them looking spiffy and weed-free. I live in the Renton area. Thank you.
Identify photo
Posted by Joyce Sims | May 20, 2025Please identify for me! Thank you!
Identify plant please!
Posted by Joyce Sims | May 19, 2025Can you identify this plant. I'm sure this isn't the proper spot for identify. But if you can, I appreciate!
Which fertilizer to use on different trees and bushes?
Posted by Cindy Lillibridge | May 18, 2025I need to know which fertilizer to use on each of several different trees and bushes, and how to use it: Mature pin oaks - some trimmed in March and some not - all lost large branches over the last Ohio winter Redbud trees - mature Redbud trees - started from seeds dropped on the ground (less than 6 inches ...
What kind of weed is this?
Posted by Janean Draper | May 9, 2025This may be a weed? It has a very strong smell, herbal, medicinal a little hint of citrus. It’s growing about 2’ among my raspberries. Strong roots, when I tried to pull it out it broke off. I set it on the sidewalk over night the bunnies had no interest.
A Question About a Magnolia Lily
Posted by audrey bialik | May 7, 2025I bought the Magnolia lily 2 years ago, and it did have a couple of blooms. This year, only a few leaves. I think it's due to the gale winds (I live in a coastal community) and the cold temperatures. I want to put a Vego 42" circular raised bed around it. Currently, the pot the shrub is in is ...
Powdery Mildew
Posted by wstrkmp | May 5, 2025Hi, Marianne. My Coppertina Ninebark has become covered in powdery mildew for the second consecutive year. Last year I tried neem oil, and when the mildew kept returning I changed to copper fungicide. I never had the problem entirely controlled. Now it's back again this year. I have again sprayed the tree with copper fungicide, but already it is returning. ...
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