The timing of sowing cucumbers depends on the method of their cultivation.

It is known that cucumbers are heat-loving crops. Calculate cucumber sowing time it must be placed in the ground in such a way that night temperatures below +12 degrees are no longer observed. Otherwise, with frequent cold nights, the seedlings will not feel comfortable, the plants will turn yellow, and they will be prone to diseases. Experienced gardeners believe that it is better to shift the timing of sowing cucumbers by several days, seeds sown in warm soil will produce more vigorous shoots and strong, healthy plants.
This advice will be very useful for cucumbers that will be grown for pickling and canning. What to do with salad cucumbers, from which you want to harvest as early as possible? It is quite possible. In order to obtain the earliest possible harvest, it is necessary to take care in advance growing cucumber seedlings. In this case the timing of sowing cucumbers in cups should be moved to the end of March - beginning of April. Seedlings will naturally have to be grown in a greenhouse, if available, or on a well-lit windowsill. When growing cucumber seedlings indoors, plant lighting may be necessary.
Planting of already grown plants in the ground is carried out at fairly high average daily temperatures. Plants in open ground begin to actively grow and bloom. The first harvest from plants planted from greenhouses usually occurs in early June.
For getting autumn harvest, the sowing dates for cucumbers are shifting to the end of June and beginning of July.