Hardy Palm and Subtropical Board
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Re: “Fertilize Palms in mid-April & again in mid-Summer”
> I stopped fertilizing my Washy because I'm afraid that if it gets too tall I won't be able to protect it . <
I wonder if you could still give the Washy the minerals they typically thirst for, but withhold the nitrogen due to its effect as a growth accelerant. So, give it potassium, calcium, magnesium. These will help with the overall health and color of the Washy, but, hopefully, with not too much of a height push.
My Filifera (potted) was growing crazy fast (about 6.5 feet tall now). But, I think it maxed out the pot it's been in and I haven't potted it up since it was much smaller. Keeping palms "potbound" is a wonderful way to manage their size without actually hurting them very much. I have heard from fish enthusiasts that several species of pet fish will grow according to the size of their tank. Keep them in a small aquarium and they will stay small. It's an interesting thing.
Of course, you cannot do those things with your in-ground palm.
Jim, Wilmington, DE, 7a
Last 30 Years Avg. Winter Low: 7.50F
Last 20 Years Avg. Winter Low: 8.35F
Last 10 Years Avg. Winter Low: 8.40F
Favorite Palms: Species: Phoenix Canariensis / Genus: Sabal