Do cucumbers grow on trees?

Cucumbers do not grow on trees. They are members of the gourd family and grow on creeping vines with broad green leaves and curling tendrils.

Cucumbers originated in India and have been cultivated for over 3000 years. They have been grown in Europe since the 9th century. Cucumbers are grown from seeds or seedlings, but they are highly susceptible to frost damage and should not be planted outside until all frost danger has passed. The plants require frequent deep watering and ample sunshine. Like tomatoes and squash, cucumbers develop from flowers and contain seeds, so they are technically a fruit rather than a vegetable.