Anchusa azurea One could drive a truck over this long-lived awesome perennial without doing more harm than breaking its branches. Tough as nails & long-lived, it’s drought tolerant, deer proof & snail proof. Want more? Okay, lots of bright truest royal blue “Forget-Me-Not” flowers display for months on sturdy multi-branching stems.
Globe Thistle One of the best flowers many gardeners have never heard of, globe thistle produces round, metallic-blue flowers though the summer. These flowers are perfect for drying and using in dried-flower projects and other crafts. Plus, it's a cinch to grow! Name: Echinops 'Blue Globe' Conditions: Full sun and well-drained soil Size: To 4 feet tall Zones: 4-9 Tips on Growing Globe Thistle