What's your question? Ask

Q.Remedy For Yellowing Needles On Japanese Umbrella Pines In Pots

Zone Santa Barbara, CA | Anonymous added on December 29, 2022 | Answered

Hello Gardening Know How: I have two Japanese Umbrella Pines that were transplanted from Portland, OR to Santa Barbara, CA (about 1 yr ago) and noticed the needles starting to yellow in late Oct. The trees are about 5ft tall (from soil top to tip) and the pots they’re in are 19″ in diameter with a soil height about 21″. I like to first know if the pot size is adequate for this size of tree? Second, since they are potted, do I need to be amending the soil more often, and if so, what type of product(s) would you recommend for this species, specifically? Any insights/advice appreciated as I really like these trees and would like to get them back to a healthier state. Happy Holidays!

A.Answers to this queston: Add Answer
GKH_Susan
Certified GKH Gardening Expert
Answered on December 30, 2022

You can add a layer of compost to the top each spring. (Remove some existing soil first.) To see if they are rootbound, pull them out of the pot a ways and check for circling roots. If they are, go up in pot size only one or two sizes. Add compost to the soil if you need to repot.

https://www.gardeningknowhow.com/ornamental/trees/umbrella-pine/umbrella-pine-planting.htm

Was this answer useful?
00

Log in or sign up to help answer this question.

Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

OK