This is a special variety of sweetcorn varieties, the plants tend to produce many more ears per plant than normal sweet corn varieties. Harvest the ears when they are best for dwarf corn which is about bite size: 5cm to 10cm long and 1cm to 2cm in diameter at the base, or butt end. To meet this criteria, harvest ears 1 to 3 days after silks become visible. Harvest baby corn every 2 to 3 days. At this early stage of ear development, the ear can grow very quickly, becoming too large in only 4 to 5 days. Don't forget that if you leave them they will grow into full size sweetcorn.