Opal
Plum, Prunus domestica
Opal is an attractive and colourful variety. Thorough fruit-thinning is necessary for maintaining good fruit quality and size. Otherwise small fruit and biennial bearing will be an issue. Because of the freestone Opal is also well suited for baking.
Blossom
Blooming date
medium early, relatively resistant against late frost
Fertility
self-fertile, good pollinator
Fruit
Ripening time
medium early, 3.-4. plum week
Scale, shape
medium large, Ø 40 mm, 35-40 g, globose, tends to have small fruits at to high crop load
Colour
red purple over colour, yellowish green ground colour
Fruit flesh
golden, medium firm, very juicy
Taste
sweet, low acidity, to high crop load leads to deteriorating taste
Cracking sensitivity
low
Stone separability
freestone
Plum pox
sensitive
Tree
Vigour
medium strong, harmonious growth
Crop load
from an early age high yield
Origin
Breeder, Place
Horticultural Research Station Alnarp, Sweden
Parents
Oullins Reneklode x Early Favorite, 1925
Property rights
free variety