Chinese Spinach Sow from March to end of July in open ground. Plant out 25cm apart with 5cm between rows. Harvest when the amaranth is 25 cm high, by cutting just above the ground. Let the plant regrow, as it can be harvested several times. You can cook or stir-fry the amaranth. The taste resembles spinach but a little more delicate. The young stems are also edible.