Cucumbers are best direct sown when the soil is very warm (70-95 F). For those in short season areas, you can start indoors a few weeks before transplanting, but use deep peat pots as cucumbers do not do well when their roots are disturbed. Be sure to keep the soil moist, but not wet. Once they have germinated, cooler night temperatures (60 F) are beneficial. SPECIAL CAUTION: Untreated cucumber seed is particularly susceptible to failure or 'damping off' if planted in soil that is too cool or wet.