What interests me most about Lefrosta is not a claimed flavour or fruit size, but a trait that has actually been measured in research trials: young fruit can tolerate spring frost unusually well. That could make it genuinely useful in difficult apricot-growing climates. I prefer to remain cautious about its other characteristics until we have more reliable information.
Lefrosta
Price range: 29,75 € through 64,50 €
A rare apricot cultivar of particular interest for frost-prone sites, with unusually good tolerance of young developing fruit to spring frost documented in Czech trials.
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Apricot ‘Lefrosta’ is a rare cultivar of Prunus armeniaca preserved and studied within Czech apricot germplasm collections.
Its most clearly documented characteristic is the frost tolerance of its young fruit. Long-term trials carried out at the Horticultural Faculty in Lednice found ‘Lefrosta’ among a relatively small group of apricot genotypes whose developing fruit showed significantly better survival after spring frost than the standard control cultivar.
This is an important distinction from late flowering. The same research evaluated late bloom separately, and ‘Lefrosta’ was selected for frost tolerance of the young fruit rather than specifically for delayed flowering. It may therefore be particularly interesting where damaging frosts can still occur after fruit set.
Reliable published information about its parentage, exact origin, pollination requirements, ripening season and fruit quality is surprisingly limited. We therefore prefer not to assign characteristics from other Czech apricot cultivars to ‘Lefrosta’ until we can confirm them from our own observations or stronger pomological records.
Variety characteristics
Lefrosta is preserved in Czech apricot germplasm collections and has been studied extensively at Lednice. Its exact breeder, parentage and original place of selection are not clearly established in the sources I found.
Origin and identity
de Nancy, de Wurtemberg, De Tours, Gros pêche, Pêche, Royal peach, Abricot de Nancy
Growth and adaptation
Growth habit and vigour are insufficiently documented in reliable published sources.
Pollination
Compatible pollinating varieties
For reliable fruit set, plant at least one variety with a compatible flowering period nearby. Flowering period: 3 - mid season.
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