19. No work with apple trees in blossom from this period is known. The beginning of April is early for apple trees to come into flower, although it is not impossible in the warm south (with thanks to Hans den Nijs, Experimental Plant Systematics, University of Amsterdam). Van Gogh probably did not mean a specific painting here, but rather a subject he was planning to paint (some time later he mentions paintings of an orchard with ‘poiriers et pommiers’ (pear trees and apple trees));
see letter 597), or else he was using the word ‘pommiers’ here for orchards in blossom in general.