Conoclinium coelestinum, or Blue Mistflower, is a perennial that adds a soft, ethereal touch to the late-summer garden with its fluffy blue blooms. Growing 1 to 3 feet tall, Blue Mistflower is known for its sky-blue flowers that bloom from late summer into early fall, attracting butterflies and other pollinators.

This species thrives in moist, well-drained soils and can grow in full sun to partial shade. It often naturalizes along stream banks, moist meadows, and woodland edges. Cold stratification for 30 days improves seed germination.

Ecologically, Conoclinium coelestinum is a key late-season nectar source for monarchs and other butterflies. Its spreading habit makes it a reliable option for naturalizing in gardens or along water edges, where it adds color and supports local pollinators.