herbary.org
Names that sound old suit horticulture better than names that sound new, and this one has enough age to feel rooted while staying perfectly comprehensible.
A herbary is a herb garden, and the word also carries an older sense close to herbarium, a collection of preserved plants for study. Both readings are useful.
Herbs sit at the intersection of several healthy markets: cooking, gardening, traditional medicine and botanical research, with a large engaged hobbyist audience and a commercial trade in seeds, plants, dried material and instruction.
On the .org the educational, community garden and botanical collection readings are strongest. It equally suits a herb nursery, a growing and reference resource, or a herbal information site.
Seven letters, three syllables, no hyphen.
The name is available. Enquiries welcome.