The WP-SeedBank plugin turns any self-hosted WordPress blog into a community seedbank (or seed library). :D
The Seed Exchange posts you're creating use WordPress taxonomies, which WordPress doesn't include in search results by default. This means that if you're creating a Seed Exchange post for a given vegetable, but the only place the name of this vegetable appears is in the plugin's custom "Common Name" field (and not in the post's title or content), then WordPress can't find that posting based on a simple keyword search. If you'd like to make the WP-SeedBank's taxonomies searchable, too, we recommend the Search Everything plugin.