- Grow 3 ft. tall and 4 ft. across
- Extra hardy and vigorous perennials
- No pinching or deadheading needed
- Bloom in the fall
Late-season color doesn't get much easier than this. Our Mammoth Mums are truly perennial mums. Just plant in the spring and allow them to grow—and they'll come back bigger and more beautiful every year. Within three years, you'll have a mounded plant that's 3 ft. tall and 4 ft. across and will be covered in blooms in the fall. No pinching, pruning or deadheading is needed. Bred by the University of Minnesota, Mammoth Mums can withstand sub-zero winter temperatures. Grow Yellow Quill Mammoth Mum as a specimen or in a row as a low hedge. It can also be planted with other colors of Mammoth Mums. It's a deer-resistant perennial that attracts butterflies. Prefers full sun to partial shade. Zones 3-9.