[1] The hybridization of these two species was first attempted by plant breeder Dr Keith Hammett, using the sweet pea cultivar Lathyrus odoratus 'Orange Dragon', L. belinensis and embryo rescue techniques.

[3][4] The F1 hybrid offspring produced from the cross were self sterile and possessed pink flowers.

[3] Multiple non yellow cultivars of Lathyrus × hammettii have been produced descending from those plants.

[3] Lathyrus belinensis possesses genetics that exhibit mildew resistance.

[6] Hybrids produced between the two species were found to be resistant to the fungus Erysiphe pisi, which causes mildew in sweet peas.