Baby corn or candle corn is a cereal grain taken from specialized corn plants and harvested early, while the ears are very small and immature. Baby corn ears are hand-picked as soon as the corn silks emerge from the ear tips, or a few days after. Corn generally matures very quickly, so the harvest of baby corn must be timed carefully to avoid ending up with more mature corn ears. The stalk grows to only 61 cm high, thereby making the harvest much easier. Tests involving growing baby maize under water have also been done, and although the corn matures much faster and is more moist, it is also much more difficult to harvest. Baby corn ears are typically 4.5 cm to 10 cm in length and 7 mm to 17 mm in diameter. Many varieties of specialized corn plants are used to produce baby corn, which is an important crop in Thailand and Taiwan.