US-1516 (cold-hardy rootstock-scion)
A USDA cold-hardy, disease-tolerant Poncirus hybrid sold both as a vigorous rootstock and a grow-your-own grafting base; resilient where citrus disease and cold both press.
Across the consideration criteria
How it grows
- Cold hardiness
- 5°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
Canopy killed at about 5°F.
Needs low heat to colour and sweeten.
Mid-season fruit (autumn).
variable (papeda-derived = vigorous + thorny)
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 growCitradia
ripens in the same window · wants the same heat to ripen
Rusk citrange
ripens in the same window · wants the same heat to ripen
Keraji mandarin (hardy)
ripens in the same window · wants the same heat to ripen
Calamondin (calamansi)
ripens in the same window · wants the same heat to ripen
Dunstan citrumelo
ripens in the same window · wants the same heat to ripen
Kabosu
ripens in the same window · wants the same heat to ripen
Climate-adapted alternatives
more resilient picksCitradia
similar cold hardiness · similar heat requirement
Rusk citrange
similar cold hardiness · similar heat requirement
Dunstan citrumelo
similar cold hardiness · similar heat requirement
Ichang papeda
similar cold hardiness · similar heat requirement
Thomasville citrangequat
similar cold hardiness · similar heat requirement
Keraji mandarin (hardy)
similar cold hardiness · similar heat requirement
Could US-1516 (cold-hardy rootstock-scion) grow on your land?
See how US-1516 (cold-hardy rootstock-scion) scores against your specific property, with local precedent, climate, and the tradeoffs for your ground.
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