The beloved 'Sadaphuli' or 'Sadafuli', as its name suggests, is one of the easiest to bloom flowering plants. Its clear crisp flowers and glossy green leaves are so perfect you may be tempted to rub them to see if they are real. Vinca, occasionally called periwinkle, is prized for its nonstop flower show from early summer till winter. This plant is drought tolerant and requires almost no maintenance to keep it looking terrific. Use it en masse in beds and borders or tuck it into mixed containers with other annual flowers.