Perennial Herb: True to its name, this plant produces a dazzling cascade of slender brilliant yellow 18" flower spikes that pop above the foliage & resemble fireworks in summer-fall. Good cut flower & border plant. Attracts butterflies & bees. Size: 2.5-4' x 2.5-4'. Exposure: sun/part shade. Water: moist/moderate. Drought tolerant. Deer resistant. USDA Z4.