Cucumbers are a perennial that can be grown for many years. However, there is a point when you need to plant new seeds in order to keep growing cucumbers. For the average grower, this means you need to replant cucumber seedlings after they’ve been growing for a couple of years. This doesn’t mean that cucumber plants have to be killed.
In fact, you can harvest cucumbers from these plants after a year or two and the plants will still grow well. When you replant cucumber seeds, you want to know how many seedlings you get from each seed. If you don’t have a scale, you can use a ruler to measure your seedlings. Just remember to count the number of leaves, and not the total length of the plant.