Perennial: Fast grower with an abundance of small, Petunia-like canary yellow flowers in spring-fall. Use for ground cover, baskets, pots, beds or window boxes. Attracts hummers. Disease resistant. More heat tolerant than others. Semi-upright: 6-10". A huge grower with strong blooms. Sun/part shade in moist, well-drained soil. Avoid overwatering. USDA Z8-11. PPAF