1 When the tongue is black or grey, it indicates extreme Stagnation; if black and dry, that indicates extreme Heat Stagnation; black and wet is an indication of extreme Cold Stagnation. 2  Bright red indicates deficient Yin or Excess Heat. 3  Dark red indicates Excess Heat.
Jupiterimages/Photos.com/Getty Images. Onions planted from seed are used as green onions within 40 to 50 days of planting. They are fully grown in 90 to 130 days, depending on the variety. Onions planted as soon as the soil can be worked in early spring are ready for the table by July.
Onions are ready to harvest approximatly 150 days after planting seeds, and approximately 100 days after transplanting sets. Green or spring onions are pulled as needed when the stems are about 1/4 inch thick. Pull green onions anytime after the tops are 6 inches tall.lant onions 1 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows. Be sure to leave enough room between rows to weed. If the onions are planted closer together, you can harvest every other plant as a green onion so that bulb development of the remaining plants is not impeded.