Which crop was NOT a major plantation crop in the southern colonies?

Wheat was not a major plantation crop in the southern colonies. The agricultural economy of the southern colonies was heavily reliant on labor-intensive cash crops that thrived in the region's climate and soil conditions. Rice and indigo were significant due to their profitability and demand in both domestic and international markets. Tobacco was also a staple crop that fueled the economy in places like Virginia and North Carolina.

Wheat, while grown in some areas, was primarily associated with the Middle Colonies, where the climate and soil were more suitable for its cultivation. The focus on labor-intensive crops in the southern colonies typically did not favor wheat production, which is less labor-intensive and more suited to smaller-scale farming rather than the large-scale plantation systems that characterized the southern agricultural landscape.