Milkweed Seed Packets: 5 Varieties, Heirloom, Untreated... Tested? We found ourselves captivated by the Seed Needs Milkweed Seed Packet Collection-five heirloom, untreated varieties that promise to attract monarch butterflies. Each packet feels like a mini-expedition into botanical diversity, with options like Asclepias syriaca and A. tuberosa offering different textures and bloom times. As stewards of our garden, we appreciated the emphasis on natural, chemical-free seeds, which align with our ethos of nurturing ecosystems rather than manipulating them. The instructions were clear, and our first sprouts emerged within weeks, a testament to the viability of these seeds. While we didn't conduct formal tests, the presence of monarchs in our garden within months suggested the collection delivers on its promise. The packets are a thoughtful resource for anyone seeking to support pollinators organically, though we'd note that success depends on local climate and care. Overall, it's a reliable, eco-conscious choice for cultivating a sanctuary for these iconic butterflies.