K1 is a magenta-fleshed, sweet dragon fruit (pitaya) cultivar of Selenicereus undatus that sets fruit without a second variety. It flowers May–September and fruit ripens 30-35 days after flowering.

- Flesh colourMagenta
- Brix17-19° · sweet
- PollinationSelf-fertile
- FloweringMay–September
- Bud to flower~25 daysTypical for dragon fruit
- Harvest30-35 days after flowering
Distinguishing features
Korean variety #1, bred for temperate climate adaptation. White flesh, clean sweetness. Flowers at lower temperatures. Weakness: smaller fruits in hot climates. Important for expanding cultivation zones.
Fruit and flavor
Dragon fruit with magenta flesh. Sugar content (Brix): 17-19. Harvest when skin color changes and fruit gives slightly to pressure.