Loblolly pine culture x density installations were used to examine the effects of two cultural intensities, four initial planting densities, and their interaction on stem, stand, crown and growth efficiency attributes from age 12 through age 17 years. Plots with initial planting density of 740 trees ha-1 remained non-thinned, and plots with initial planting density of 1480, 2220, and 2960 trees ha-1 were thinned at age 12. There were few significant culture or culture x density effects. Stand and crown attribute values were generally greater under intensive than operational culture. Density regime significantly affected many stand, crown, and growth efficiency attributes. Individual trees in thinned densities for both cultures increased DBH by the same amount from age 12 to 17. Stand and crown attribute values followed patterns of growing season rainfall; stand development following thinning was delayed by two consecutive years of below average growing season rainfall during the 13th and 14th growing season. Results indicate that stand density impacted growth attributes greater than cultural intensity, and growing season precipitation levels affected stand and crown response to thinning.