They also come in bush or staking. The bush varieties are a little less maintenance - but not as much fun. Transplant after last frost in rich, well drained soil with high humus content. Use compost or well rotted manure. Keep nitrogen levels low to begin with, if possible Incorporate ground limestone or Dolomitic lime into soil in fall or early spring Mulch with black polyethelene to warm the soil On staking varieties, provide for a strong support that will allow the plants to reach at least 4' in height and carefully secure the main stem as the plant grows.
Potatoes Decide on planting time.
You can choose between early, mid and late season varieties. Plant in rows about 2-2.5' apart. Wider rows will allow hilling later in the season. This allows more tubers to form at the lower leaf axils. Also this will provide for a cover from the sun for expanding tubers.