SCARLET (Potenilla) CINQUEFOIL-All good gardeners love the Potentillas, and here's why: they cover themselves with scarlet flowers from early to late summer, while most other perennials bloom just a couple of weeks. What's more, potentillas are short (about 2 ft.) shrub-like relatives of roses, and if you look closely, you'll see that each brilliant 5-petaled flower looks just like a single wild rose. They're great additions to any perennial garden. Easy to grow from seed. Low maintenance. 100+ Seeds per order.