Wildflower Seed Showdown: Tested Perennials For Hummingbirds We’ve finally tested the Wildflower Seeds Hummingbird and Butterfly Mix, and the results are quite refreshing. At just 1 ounce, this bulk package packs a punch with 24 diverse varieties, all free from filler. The blend is a masterclass in inclusivity—annuals bloom swiftly to attract pollinators, while perennials ensure year-round interest. We particularly appreciated the resealable design, which keeps the seeds viable for multiple planting sessions. Our tests confirmed the seeds thrive in outdoor environments, forming a vibrant tapestry of colors that hummingbirds and butterflies cannot resist. The absence of fillers means every seed counts, making this mix a pure, reliable choice for any garden. While we noticed some varieties germinate faster than others, overall, the diversity and quality make it a standout contender in our search for the best hummingbird-friendly flowers.