Cucumber, English Telegraph Cucumber, 10 Seeds! Groco ENGLISH TELEGRAPH CUCUMBER WINNER GETS 10 SEEDS! Annual vegetable 45 days grows up to 10-12" long English telegraph variety cucumbers are not bitter. Seedless variety (very few seeds). Grows dark green straight cucumbers when grown on a trellis, stake, or fence. Great flavor. Has thin skin that is not bitter. Can be eaten with skin on. Save your own seeds and grow again from this open pollinated heirloom.