Cucumbers prefer well drained fertile soil high in organic matter with neutral pH. Cucumbers are heavy feeders. Sidedressing is recommended one week after blossoming and again 3 weeks later, especially if there are signs of deficiency. Nitrogen deficiencies cause yellowing, and bronze leaves are a sign of potassium deficiency.
For slicing cukes 12-24", for pickling cukes 8-12”, for greenhouse cukes 20”.
Row spacing: for slicing and greenhouse cukes 5-6’, for pickling cukes 3-6’.
When to Sow
Cucumbers can be direct seeded or transplanted one week after all danger of frost has passed. Start transplants 3-4 weeks before planting date. Plants with one or two true leaves transplant best. Optimal soil temperature for germination is 85°F. Soil temperatures below 50°F slow growth and impair water uptake by roots. Cucumbers prefer an air temperature of at least 70°F during the day, 60°F at night. Plastic mulch and row covers are commonly used for field cucumbers to increase soil and air temperature and ward off insects. Make sure to remove row covers when plants begin to flower to ensure pollination.