BCT2 seedlings, derived from the cross Tangeglow (I. hawkeri Bull. × I. aurantiaca Teysm.) × 7851-1 (I. hawkeri Bull. × I. platypetala Lindl.) with 7851-1 as recurrent parent, were tested for presence of pollen fertility. Of 59 BC2 seedlings, 11 were capable of in vitro pollen germination and also of effecting fertilization and subsequent seed set as pollen parent when crossed with Tangeglow as the seed-parent tester. The Spearman's rank correlation coefficient [rs] of + 0.63 indicated a moderately good correlation of seedling ranking, based on pollen germination percent in vitro and seed set in vivo. Pollen germination of the 11 pollen-fertile BC2 seedlings varied from a mean low of 4% to a mean high of 41%. The 3 highest pollen-germinating BC2 seedlings also had the highest seed sets, but siblings showed a wide range in pollen-germinating ability. The best pollen germination for a seedling was 8% in the BC1 and 41% in the BC2. Pollen fertility in the BC2 is discussed in relation to using interspecific hybridization in an Impatiens breeding program.