Our single tubers come with at least one viable eye. Preorder now and tubers will be shipped in the spring for planting! Plant in full sun, when the soil has warmed and all chance of frost has passed, usually late April or May in the PNW. Dahlias can be planted as close as 12" apart from one another. The more you harvest their blooms, the more you get! Shipping available (if your order does not include live plants), or local pick up or delivery.