Always be careful introducing anything to your garden. That being said, Querkle is a fantastic strain. The Urkle pheno is extremely slow in veg, starts its purpling week 3-5 flower and is really tasty on finish..dont flip it early and don't chop early. The SQ pheno is a very fast finisher....48-58 days, tinges of purple week 7ish, and has a light fruity flavor...grape meets pineapple, a sweet wine. Someone I know makes a lot of money having the 2 phenos as two of his mothers. Most "cuts" will be the Urkle pheno, but both are great. This is a strain I have a lot of hands on experience with. Best of luck