As more jurisdictions legalize its cultivation and use, stocks with eye-popping gains are appearing. But in cannabis investing, the trick is weeding out the low-quality stocks

Investing in marijuana stocks may be a growth play for the long term, if you can stand the risk of getting burned in the short term.

It's not that you can't make money right now. While Canada's S&P/TSX composite index has risen nearly 5 per cent year to date, at press time, Hemp Inc. has surged 563 per cent, Advanced Cannabis Solutions Inc. has soared 423 per cent, Medical Marijuana Inc. has jumped 92 per cent and GW Pharmaceuticals Plc has gained 35 per cent.

[continues 760 words]