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How close can you plant a new rhododendron?

Posted by juder 6b (My Page) on
Tue, May 11, 10 at 21:03

I have an old rhododendron that was in my yard when I bought this house 17 yrs ago. It has never done well but the past couple of years it has been losing ground rapidly. We had a hard winter this year and it is not recovering well this spring, which is also true of many of my other plants. I would like to get a new, small rhododendron to plant next to this one and hopefully grow into some of the empty space this one has left. As I understand it, rhododendrons have very shallow roots that are spread out beneath the bush and I'm afraid digging the hole for the new plant would destroy the plant I'm trying to nurse along. How close to the older plant can I put the new one?

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RE: How close can you plant a new rhododendron?

  • Posted by morz8 Z8 Wa coast (My Page) on
    Wed, May 12, 10 at 11:48

The roots of rhododendron will extend out as least as far as the widest branches, digging anywhere within the drip line of the plant is not recommended. Then you have to consider the mature size of the plant you are trying to install - if the tag reads 4' wide, add minimum additional 2' outside the drip line when preparing the planting hole.

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