Potato – Common

White potato, Irish potato, Spud

Solanum tuberosum – Solanaceae

Description

Height – 24 to 30 inches
Spread – 24 inches
Root Depth – Normal depth to which roots reach
Hardiness – Ability to tolerate frost. 
Exposure – Full Sun, needs 6 or more hours of sunlight per day

Planting

Depth – 4 inches
Extensive Spacing
  In Row – Spacing between plants within row in inches
  Between Rows – Spacing between rows in inches
Intensive Spacing – 2 plants per square foot

Direct Seed – Let tubers sprout for a week in indirect light before planting outside
  Spring – From 6 week before last expected frost
  Fall – Beginning and end dates of fall planting in weeks before and/or after first frost

Transplant – Not usually transplanted
  Spring Inside – n/a
  Spring Outside – n/a
  Fall Inside – n/a
  Fall Outside – n/a

Succession – One planting in spring, and one planting in fall

Requirements

Germination – 60°F to 65°F
Growth
  Soil – Min to max soil temperature for growth
  Air – 60°F to 80°F
pH – 5.0 to 6.5
Watering – Heavy, 1 1/2″ per week
Fertilizer – Light feeder, one application of fertilizer per year with no supplemental feedings

Duration

Germination – 10 to 15 days
Maturity – 12 weeks
Harvest – Length of harvest in weeks

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