Star Ruby grapefruit
The darkest-fleshed grapefruit with the richest flavor, but horticulturally touchy (cold- and herbicide-sensitive, erratic yields); a premium fresh fruit.
Across the consideration criteria
How it grows
- Cold hardiness
- 26°F
- Ripening
- Late-season
- Vigor
- Moderate-Vigorous
- Disease tolerance
- Moderate
- Drainage need
- Well
- Soil pH
- 6–7.5
- Graft requirement
- Graft Required
- US availability
- Available
Considerations
Canopy killed at about 26°F.
Needs high heat to colour and sweeten.
Late-season fruit (Dec-Apr).
moderate-vigorous
Prefers a pH band of 6–7.5.
These are intrinsic to the citrus. On a real property, Folia scores each against your site; here they're shown on their own.
Grows alike
similar to growDuncan grapefruit
ripens in the same window · wants the same heat to ripen
Flame grapefruit
ripens in the same window · wants the same heat to ripen
Valentine pummelo hybrid
ripens in the same window · wants the same heat to ripen
Cocktail grapefruit
ripens in the same window · wants the same heat to ripen
Marsh grapefruit
ripens in the same window · wants the same heat to ripen
Thompson (Pink Marsh) grapefruit
ripens in the same window · wants the same heat to ripen
Climate-adapted alternatives
more resilient picksMarsh grapefruit
similar cold hardiness · similar heat requirement
Duncan grapefruit
similar cold hardiness · similar heat requirement
Flame grapefruit
similar cold hardiness · similar heat requirement
Thompson (Pink Marsh) grapefruit
similar cold hardiness · similar heat requirement
Valentine pummelo hybrid
similar cold hardiness · similar heat requirement
Cocktail grapefruit
similar cold hardiness · ripens in a similar season
Could Star Ruby grapefruit grow on your land?
See how Star Ruby grapefruit scores against your specific property, with local precedent, climate, and the tradeoffs for your ground.
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