Horticultural heaven is an example of what type of figurative language?

Metaphor

Explanation:

Figurative Language refers to a creative form of writing wherein words are given deeper meanings. Words are described in such a way that reading becomes more appealing and interesting. Examples of such figurative languages include;

metaphor hyperbole simile symbolism.

The description Horticultural Heaven is a Metaphor. A metaphor is a creative way of comparing words. Horticulture is the act of planting ornamental crops. It cannot be located in heaven. The use of heaven suggests, that the place being described is a hub of horticultural activities.