- American Highland Online Seed and Bulb Catalogs
 - Online seed and plant catalogue links to buy flower seeds for your garden. American Highland features selections from catalogues like Michigan Bulb Company, Spring Hill Nursery, and Breck's. - Cheap Seeds
- Online shop offering a large variety of perennial and annual flower seeds as well as a wildflower mix.
- Dowdeswell's Delphiniums
- Includes history and growing information of delphiniums. Offering fresh delphinium seeds worldwide.
- Fred's Rhody and Azalea Seeds
- deciduous azaleas, rhododendron hybrids, Yak hybrids, and rhododendron and azalea species from the Pacific Northwest.
- Germania Seed Company
- Specialising in high quality flower (perennial and annual) and vegetable seeds, plants and plugs.
- Goldsmith Seeds
- Flower seed breeder.
- Heyne Custom Seed Services
- includes wildflower cultural information, pictures, and relevant links.
- PanAmerican Seed
- Selling Wave brand petunia seeds.
- Park Seed
- Family-owned plant and seed company.
- Passion Flower Seed Company
- Suppliers of passion flower seeds from the U.K. national collection. Includes advice and growing tips for your passion flowers.
- Poppies Shop
- Specialises in the sale of dried poppy pods and seed as well as other dried flowers.
- Sweet Pea Flower Farm
- Specialising in personalised seed packets for weddings, announcements, parties, or any occasion.
- Tender Seed Company
- Seed packet favours for weddings, baby showers, business promotionals, as well as for home and garden use
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