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Pittosporum Plants

Q.Neighbors Have Planted 4 Now Huge (35-40’tall) Pittosporum Trees Right Next To Our Fence. Will The Root System Become Invasive An

Zone Avila Beach, CA | Anonymous added on May 16, 2021 | Answered

d damage our fence & patio slab? Would topping the trees make them fuller? All the mess falls on our side of the fence, so thinking a good trimming would help.a

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Certified GKH Gardening Expert
Answered on May 19, 2021

I don't think the roots of this tree are terribly invasive, although they will seek out nearby water.
This article has a bit of info about trimming/pruning them: https://www.gardeningknowhow.com/ornamental/shrubs/pittosporum/growing-japanese-pittosporum.htm
It's okay to do a hard pruning on these: https://www.gardeningknowhow.com/ornamental/shrubs/shgen/rejuvenation-pruning-tips.htm

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