Six genotypes of cotton were sampled for condensed tannins by the HC1 butanol method throughout the growing season of 1988. The topmost unfolded leaf and the youngest mature leaf were sampled at 5 stages of growth from the fourth true leaf stage through first bloom plus two weeks. Cotton Improvement Lab HT strain 86III-24 averaged 1.6% condensed tannin as a percent of fresh weight. Three HT strains averaged less condensed tannins than Arkot 518 or Tamcot CD3H. Tannin content was highest at the first bloom stage and lowest at the fourth true leaf stage.