How To Grow Cucumbers From Seeds Indoors. Germinating cucumber seeds indoors for outdoor transplanting typically takes seven to 10 days if people do it correctly. Plant seeds about a ½ inch into the fertile soil and measure six inches between each seed you plant.
Water your cucumber seedlings daily. Cucumbers grow more efficiently when the seeds have room to sprout. All about the benefits of germinating and growing your own vegetables vegetables for food.
They need a temperature of at least 20ºc to germinate.
Plant seeds about a ½ inch into the fertile soil and measure six inches between each seed you plant. Make sure your seedlings get 13 to 18 hours of artificial light per day. You can sow your cucumber seeds indoors in late april or wait and sow them directly outside in late may to early june. The preferred soil is loose, sufficiently drained, and adequately supplied with organic matter and plant nutrients.