Solar Flare Coneflower Seeds Beautiful Summer Blooms Fresh Plants with an incredible display of a HUGE vibrant red blooms which makes a great contrast to the darkened stems upon which they stand. Hummingbirds keep on coming to this one! Zones: 4-9 Actually, the bloom is ENORMOUS which makes this red unique. The petals extend outward from the dark cone as if they're shooting out into the garden. Soil: Well-drained, non-Acid a must H: 24-36" W: 18-24" B/M: Red/7-Frost with deadheading Seed starting instructions included.