Are Cosmos Perennials? Increase Summer Bloom Time
Prolific in bloom, cosmos can be a fantastic flowerbed stunner. Brilliant in color and magnets for pollinators, what’s not to love?! But, are cosmos perennials or annuals? We’ve started growing cosmos back in our 2020 garden. After quite a few amazing seed swaps, I ended up with sensation cosmos and seashell cosmos. At the time,…