A favorite vegetable of the famous King Charlemagne, cucumbers were grown in his gardens in the 8th and 9th century. Although the cucumber is originally from India, the crop maintains wide popularity across the world and is a significant vegetable in many cuisines. Though most notably known for use in pickling, Mountain Valley Seeds carries cucumber varieties for all sorts of summer snacking. Try the Sweeter Yet variety for salads, the Lemon cucumber for kids and the unique Armenian Yard-long for something different! Cucumber seeds are available by Mountain Valley Seeds in small quantities up to bulk at wholesale. Cucumber garden seeds. Cucumbers are an annual plant. They are a great for growing in gardens because they are easy to grow yourself and start from seeds. They are popular in fresh healthy dishes, but are also made into pickles.