Castleton plum trees

Castleton is a modern dual-purpose early-season plum. It was developed for the New York commercial plum-growing market, and these qualities also make it a good choice for the backyard orchard.

Castleton can be eaten fresh when fully ripe or used in the kitchen if picked slightly earlier. It is a freestone plum - the stone falls away from the flesh easily.

Pollination

Historical details

Developed at the New York State Agricultural Experiment Station, part of Cornell University, under a team led by John Watson. Released in the 1990s. Castleton is a cross between Valor and Iroquois.

Castleton characteristics

Using

  • Picking season: Early
  • Uses: Eating fresh Cooking
  • Cropping: Heavy
  • Keeping (of fruit): 1 week
  • Flavour quality: Good
  • Flavour style (apples): Sweet/Sharp

Growing

  • Gardening skill: Easy
  • Self-fertility: Partially self-fertile
  • Pollination group: 3
  • Pollinating others: Average
  • Ploidy: Diploid
  • Vigour: Slightly large
  • Precocity: Precocious
  • Bearing regularity: Regular

Climate

  • Cold hardiness (USDA): (4) -30F / -34C
  • Summer average maximum temperatures: Cool ( 20C - 24C / 68F - 75F) Warm (25C - 30C / 76F - 85F)

Identification

  • Country of origin: United States
  • Period of origin: 1950 - 1999
  • Fruit colour: Blue - dark