Vardaman sweet potato has a compact growth habit and has excellent flavor. The plants have beautiful purple foliage and need only one foot of row space between them. Plant these vining plants 12" to 15" apart and enjoy the beautiful flowers they produce before harvest time. These sweet potatoes are ready to harvest in about 90 days. Will ship separate from onion plants. Sweet potato plants are shipped from late April to early June depending on your location. Prices are for a single variety and include the cost to ship them to you. Please note that we cannot ship sweet potato plants to California residents. We apologize for the inconvenience.