Start indoors 3 weeks before last frost and transplant to indicated spacing after threat of frost has passed; or direct sow seeds spaced 4 inches apart as soon after last frost, then thin to indicated spacing once seedlings put on their first true leaves. Plant in moderately fertile soil and water regularly. Cucumbers can be trellised or allowed to grow on the ground. Harvest when cucumbers are green and white and the skin begins to smoothen, but before they become shiny and yellow.