The new variety ‘TH-921’ is provided. The new and distinct variety ripens around early May in southern Georgia and late May in middle Georgia. The fruit of the new variety ‘TH-921’ are firm with good flavor and scar. The new variety ‘TH-921’ is vigorous with an estimated chilling requirement of about 500 to 550 hours at or below approximately 7° C. The asexually reproduced variety is reliably propagated vegetatively.