Grown atop thick, “hairy,” sturdy stems, some sunflower varieties can reach 10 feet tall—or taller! While the black- or brown-centered, yellow-petaled sunflower is perhaps the most familiar ...

Upperside forewings are brown with yellow, brown-spotted centers ... but have also been observed nectaring on chamise, golden yarrow, slender sunflower, poison oak, and short-podded mustard. THREATS: ...

Leave your sunflowers in the garden until the plants begin to dry out and the flowerheads drop their petals and turn yellow ...