I usually start my seeds in the prime of April. This gives approximately 6 months of growing time. If you don't want to spend money on bags try reusable shoppings bags.
KEEP FUNGAS GNATS. Mainly because They're harmless. But they attract some predatory pests that protect your plants;
Did a wash on my Purple Kush with Hydrogen peroxide and two buckets of cool water. I definitely recommend if you don't wanna smoke random Earth debris:weed: