How many potatoes will 5 pounds of seed potatoes produce?

A 5-pound bag of seed potatoes will typically produce 50-75 pounds of harvested potatoes under good growing conditions.

This estimate is based on the standard yield-to-seed ratio of 10:1 to 15:1 for potato cultivation. According to ICAR-CPRI standards referenced in the context, seed potatoes represent a significant input cost — typically 30-50% of total variable cultivation costs — precisely because of this multiplication factor during the growing season.

The actual yield depends on several key factors:

Seed size and spacing: Medium seed potatoes (50-70 g each, roughly 1.8-2.5 ounces) planted at optimal 20 cm x 60 cm spacing will produce higher yields per seed piece than larger or smaller seed potatoes. Your 5-pound bag likely contains 35-45 seed potatoes of this size.

Growing conditions: The context shows US commercial operations achieve exceptional yields — Washington's Columbia Basin averages 600 cwt/acre (67 t/ha) while the US national average is 450 cwt/acre (51 t/ha). Home gardeners typically achieve lower yields than commercial operations due to less intensive management, but the fundamental biology remains the same.

Variety and purpose: Processing-grade russet varieties mentioned in the Pacific Northwest context are bred for high yields, while seed potato production uses denser planting (2.5-3.5 tonnes/ha vs 2.0-2.5 tonnes/ha for ware production) which can affect individual plant productivity.

For home gardeners, expect yields on the lower end of this range (10:1 ratio) unless you have optimal soil, irrigation, and pest management similar to commercial operations.