Organic spice or herb gardens with proper educational tours (not sales-focused)?

Some smaller organic farms and herb gardens offer educational tours focused on growing methods, traditional uses, and sustainability rather than heavy sales. These are often found through eco-conscious guesthouses or specific networks. The best ones let you see the growing process, learn about harvesting and processing, and understand the cultural context. They're usually smaller scale and more authentic than the commercial spice garden stops. Ask specifically for 'educational' or 'organic farm tour' rather than general spice garden visits.