under the large rhododendron - Knowledgebase Question

Laurel, Ma
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Question by leswilson1
August 12, 2010
Does the rhododendron poison the plants underneath/near it?

Answer from NGA
August 12, 2010
Rhododendrons don't actually poison plants beneath them but it can be difficult to get anything to grow beneath a large rhododendron - the soil will be dry and full of fibrous roots which will compete with other plants for moisture and nutrients. Usually the larger plant will win the battle. If you try to amend the soil or water more frequently to help the other plants, the health of your rhodie can be compromised. So, the best approach is to leave the soil beneath your rhododendron bare. Hope this clarifies things for you.

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