The vineyards of Esslingen are an integral part of the town's landscape and economy. They terraced the south-facing slopes of the Neckar valley long before the town's half-timbered houses were built, and they remain in production today, climbing up the hillside from the river's edge to the walls of the ruined castle above.
The Winzerkeller Esslingen, the town's main wine cooperative, offers tastings and sells a range of local wines. The best time to see the vineyards is during the harvest in September and early October, when the Zwiebelkuchen (onion tart) and Federweißer (young fermenting wine) season begins — a combination unique to the region and celebrated at outdoor festivals throughout the autumn. A walk up through the vineyards to the Burg, with views expanding as you climb, is one of the best free things to do in Esslingen.