Citrus x paradisi 'Oroblanco' forms large, flattened fruits with white flesh that are sweet without the bitterness of regular grapefruit.

Citrus x paradisi 'Oroblanco' forms large, flattened fruits with white flesh that are sweet without the bitterness of regular grapefruit.

Citrus x paridisi 'Rio Red' produces delicious orange-sized grapefruits with reddish-orange flesh and a yellow rind flushed with salmon.

Citrus x paridisi 'Star Ruby' produces large six inch wide fruit with yellow orange skin that blushes rose when ripe.

xCitroncirus forms large grapefruit-sized fruits that are yellow to light orange with thin skin and a flavour like a cross between a lemon and a grapefruit.

'Dunstan' citrumelo forms large grapefruit-sized fruits. It is easily hardy to zone 8 and most likely zone 7!

Citrus 'Cocktail' forms large grapefruit-sized fruits that are bright yellow and very juicy.

Citrus 'Cocktail' forms large grapefruit-sized fruits that are bright yellow and very juicy.

Citrus x paradisi 'Melogold' is similar to 'Oroblanco' but with a thinner, more golden skin, larger fruit, and slightly higher juice content.

Citrus x paradisi 'Melogold' is similar to 'Oroblanco' but with a thinner, more golden skin, larger fruit, and slightly higher juice content.