A vine from the morning glory family (Convolvulaceae), sweet potato is widely cultivated for its edible root tubers.
Unrivalled king of the forest in Britain, English oak (pedunculate oak) is synonymous with strength, size and longevity.
An evergreen shrub or tree from tropical Africa to Asia, toothbrush tree has a wide range of uses, including the chewing of its twigs to promote dental hygiene.
Watermelon has long been valued for its refreshing fruits, which have also been used as an ingredient in cosmetics.
Blueberry is cultivated in North America and Europe for its edible fruits, which have been promoted as an antioxidant-containing 'superfood'.
Grown worldwide for its fleshy, edible taproot, radish is thought to have originated in the eastern Mediterranean region.
A climber with unusual, variegated leaves, splashed with pink and white, kolomikta vine has small flowers with a fragrance similar to that of lily-of-the-valley.
Pineapple is a tropical plant widely cultivated for its distinctive fruits with their sweet yellow flesh and juice.
A staple food crop in its native Ethiopia, the Ethiopian banana is also a popular ornamental giving gardens a lush tropical effect with its large decorative leaves and striking purple midrib.
The golden lotus banana is a small but stunning member of the banana family.