The unique ability for cucurbits, naturally outcrossers, to withstand inbreeding has allowed pedigree line breeding techniques to become the industry standard for development of new squash varieties, buttercup included (1; 7). Self-fertilization is preferred because it ensures rapid homozygosity and the fixation of desirable characteristics within the variety (1). A method of recurrent selection breeding was developed with the goal of creating a new variety of C. maxima buttercup squash that competed with or outperformed other market varieties, yet maintained maximum heterozygosity. This would be achieved by avoiding self-pollination at critical stages of the breeding project and maintaining adequate numbers of progeny over the selection process.