Greenhouse Long Burpless Cucumber

Start seeds indoors 3-4 weeks before your last spring frost in warm soil (70-85°F). Sow seeds 1 inch deep in seed-starting mix and maintain consistent moisture and warmth. Transplant seedlings outdoors only after all frost danger has passed and soil has warmed to at least 60°F.

Harden off seedlings gradually over 7-10 days by exposing them to increasing periods of outdoor conditions. Transplant into the garden when soil temperature reaches at least 60°F and nighttime temperatures stay consistently above 50°F. Space plants 18 inches apart in rows 48 inches apart, planting at the same depth they grew in their containers.

Direct sow seeds outdoors 1 inch deep after soil temperature reaches 60°F and all frost danger has passed. Sow seeds in groups and thin to the strongest seedling once growth is underway, maintaining 18-inch spacing between plants.

Pick cucumbers when they reach 8-12 inches long and have a firm, smooth feel. Harvest every 2-3 days during peak production to encourage continued flowering and fruit set. Fruits that turn yellowish or soft have passed their prime and should be removed to redirect energy to developing cucumbers. Cut fruits from the vine with a knife rather than twisting them off to avoid damaging the plant.

As a vining variety, Greenhouse Long Burpless benefits from support trellising or pruning guidance, though the plant naturally produces a manageable medium vine. If growing vertically on a trellis, remove lower leaves once the plant is established to improve air circulation and reduce disease pressure. Prune only to direct growth or manage crowding; excessive pruning reduces fruit production.