What is a group of Lavender called?

A group of lavender is commonly called a Hedge. Other collective nouns you may see include Tuft.

Collective nouns are words used to describe a group or collection of the same type of object, usually animals or things that share a common characteristic. Although collective nouns are typically used to refer to living beings, they can also be used to describe collections of inanimate objects or plants. When it comes to collecting nouns for lavender, there is not a specific or widely known collective noun specifically dedicated to this flower. However, we can try to come up with an imaginative and creative collective noun for lavender. When envisioning a large field of vibrant and aromatic lavender plants swaying in the breeze, perhaps we could refer to this beautiful sight as "a bouquet of lavender" to capture the image of multiple lavender plants gathered together. This description brings to mind a colorful array of purples and tranquil fragrances that characterize lavender. Alternatively, in a more poetic sense, one might refer to a group of lavender plants as "a whisper of lavender," as it conveys a sense of delicacy, softness, and tranquility inspired by lavender's calming properties and its whispered scent. While these descriptions are not officially acknowledged collective nouns for lavender, they depict the essence and beauty of a collection of lavender plants, encapsulating the captivating effect that these plants have on our senses.