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Defensive adaptation is the reason why bushes may have thorns. The thorns serve to control the amount of grazing which can be done at any one time or to dissuade predation completely. They will function in the same way in regard to pollinators.

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9y ago
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10y ago

No, Rose of Sharon shrubs do not have thorns.

Specifically, the Rose of Sharon (Hibiscus syriacus) constitutes a beloved feature in many gardens and yards. It is particularly popular because of its beautiful mid- or late-summer to early fall bloom. Its main drawback will be the pruning schedule which may be necessary if spot-trimming is not practiced yearly.

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14y ago

It's rather simple actually, it's their defence mechanism. As you may already know,

Rose petals are very delicate as they can die if handled too roughly.

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9y ago

to protect the flowers

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12y ago

e

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Q: What is the function of thorns on a rosebush?
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