Swapseeds Swap seeds and house plants, also provides flower and shrub photographs. Uses a credit system,......
http://Swapseeds.com
Seeds from Bulgaria and other countries (Seed Swap / Seed Exchange). Seeds of unusual and usual edibles, ornamentals, flowers... (seed swap / seed exchange / seed......
http://www.geocities.com/bg_seeds/
Plant-traders : Swap, exchange or sell seeds & plants online: News Online community of people sharing, swapping and selling plants, seeds, bulbs, and cuttings....
http://www.plant-traders.co.uk/news.php