Dunstan citrumelo

Specialty citrusAvailable

A trifoliate-by-grapefruit cross that gives an edible grapefruit substitute hardier than any true grapefruit. Sold for cold-hardy gardens specifically as the grapefruit-flavor option that survives where Marsh cannot.

Across the consideration criteria

How it grows

Cold hardiness: 10°F
Ripening: Mid-season
Vigor: Variable (Papeda-Derived = Vigorous + Thorny)
Disease tolerance: Moderate
Drainage need: Well
Soil pH: 6–7.5
Graft requirement: Graft Required
US availability: Available

Considerations

Cold hardiness10°F

TenderCold-hardy

Canopy killed at about 10°F.

Heat to ripenLow

Low heatHigh heat

Needs low heat to colour and sweeten.

Maturity seasonMid

EarlyLate

Mid-season fruit (Dec-Feb).

VigorHigh

LowHigh

variable (papeda-derived = vigorous + thorny)

Soil pH preference6–7.5

4.58.5

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 grow

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