Lemon Fruit (Citrus Limon)

This famous long-lived tree opens clusters of extremely fragrant white flowers, followed by big ovoid fruits, which are green when young and later ripen to bright yellow. As well as producing a large crop of fruit, it also makes the ultimate architectural courtyard plant in warmer countries, or is perfect in a container on a patio conservatory or cold greenhouse specimen as it can tolerate temperatures down to -5C. Modern forms of this fruit are selectively bred to produce few or no seeds, hence the difficulty in obtaining viable seeds.