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.
Insects and Diseases: Harvest and Storage Onions vary in their maturity times. Green onions may be harvest as early as 50 days after seeding. Bulb onions generally require 100-120 days to mature. Leave bulb onions in th e ground until the tops fall over.nsects and Diseases: Harvest and Storage Onions vary in their maturity times. Green onions may be harvest as early as 50 days after seeding. Bulb onions generally require 100-120 days to mature. Leave bulb onions in th e ground until the tops fall over.