Geographical origins: Barbados, Natural Hybrid of Citrus maxima x Citrus Sinensis.
Adult size: Height up to 9 m, spread up to 6 m.
Foliage: Evergreen.
Type of soil: free draining, neutral to acid.
Climate: Hardy to -7°C. It needs both heat and sunshine in summer to produce sweeter fruits.
Site: Full sun.
Characteristics and uses:
The Grapefruit tree (not to be mistaken with the Pumelo tree which has soured fruits) is a tree with a fragrant, white blossom at the end of spring. It produces large fruits, the grapefruits, measuring from 8 to 15cm in diameter, red- fleshed, juicy, tangy and slightly sweet. The fruit's acidity attenuates when the sunshine is more intense. Grapefruits are ripe between November and March.
The Grapefruit tree has to be protected from cold in winter (pot and foliage), as it does not withstands temperatures that fall below -7°C. However, this protection is only necessary if the temperature does not go up during the day.
In the coldest areas, shelter your Grapefruit tree in a conservatory, or a non-heated room during winter.
Plant them now: the shortest way to your plate is through your garden!
Looking after advice:
Watering: As Citruses do not like dryness it is important to water them regularly, but not abundantly. In summer, water every day if necessary, in winter water once or twice a week.
Fertilizer: From March to October, give it a suitable citrus fertilizer once a month.
Pruning: Prune regularly in the spring and in summer to encourage ramification and keep it in the wished-for shape.