You will be given a definition of a task first, then some input of the task.
Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

I harvested my candy onions the 10th of Sept. 90% were softball size and bigger. Majority were over a pound, and many close to 2 lbs. cured them, and hung them in 5 lb. onion bags in the pump house at 42 degrees. It's now the 12th of Feb. I had a few sprout, but the rest are still solid. How to Grow Onions From Seed. Onions take a while to develop from seed. Sowing inside in January or February under growing lights then transplanting to the garden in early spring is the only way that I can grow onions from seed and have them mature in my zone 5 garden. ADAPTATION: Mini onions are smaller and earlier to bulb the further north they are grown. Suited to 40 and higher latitudes for pearl and cipollini onions for small to medium onions at lower latitudes. AVG. DIRECT SEEDING RATE: 5M/50', 1 oz./80', 13 oz./1,000', 34 lb./acre at 96 seeds/ft. in 4 wide bands, in rows 12 apart. SIZED SEEDS: All seeds are unsized. SEED SPECS: SEEDS/LB.: 113,700-134,300 (avg. 123,300). PACKET: 1,000 seeds. Plant onions sets (small bulblets) 3 to 4 months before the time you want to harvest mature bulbs; plant sets 3 to 4 weeks before you want to harvest green onions. Onion seeds are best started indoors: start seeds 4 to 6 weeks before the average last frost date in spring, and transplant them into the garden as soon as the soil can be worked. Lancastrian is a football shaped onion, that is crisp, sweet, 95 days to maturity. Copra is an early onion, with a medium size bulb, dark yellow skins, 104 days to maturity. Ailsa Craig Exhibition is a hugh, round, white, mild onion with yellow skins, 110 days to maturity. First edition is a medium size onion, yellow skins, 105 days to maturity. Short-day varieties of onions such as the Texas Supersweet that are grown in the South take 80 to 95 days to mature from seed. Long-day varieties such as Spanish onions that are grown in the North take 105 to 120 days to mature. For areas with shorter growing seasons, onion seeds can been sown indoors and transplanted at eight weeks. It is my first year trying onions, and have started both scallions and yellow onions from seed, indoors. They are in small plastic seed starting trays and growing under lights at about 75 degrees Farenheit. When starting seeds of other garden crops indoors under lights, the lights should be left on for 18-24 hours per day, but having them on that long for onion seedlings can affect the bulb set. Instead, leave them on for only about 12 hours per day. Plant onion seeds in clean nursery flats using sterile, seed-starting potting mix. The onion is a bulb-forming plant with long, tubular, deep, rich green leaves. They vary in size from the tiny green or spring onions to the large sweet Bermuda-type onion. Colors are white, yellow, and red. Bulb onions mature in response to changing amounts of daylight. The longer the plants grow before forming bulbs, the bigger and better those bulbs will be. In North America, days become shorter after the summer solstice (June 21st). Plants take around 100+ days to mature, so you'll need to better part of 4 months to get full grown onions, although the bulbs can be harvested before they are fully mature. For northern growers who are starting onion seeds inside: Query: how long for onion seeds to mature
Output:
Onion seeds take eight weeks to mature.