Sweet Corn Michele shows a staggered planting of sweet corn. See in foreground the young plants, behind them on the left the corn is just reaching full size, and on the right are plants fully matured and very healthy, and bursting with multiple cobs ready for harvest. We’ll be eating fresh corn tonight and for many weeks to come. There are a heap of rock melons under the corn on the right, and they’re nearly ready. Yum.