I found what seems to be a hidden marijuana field.

[TimberWolf]

Surely if it grew wild out in the open as you say it'd be given a name descriptive of a plant that crowds out cultivated species?

[Mich the Tester]

Maybe CUK should start an online drug shop. And an adult dating service.

and a laundry service.

I think you're meant to dry clean curtains.

[DaveB]

Can you give a map reference, so I can check it on Google Earth, then I will give you an informed opinion

Here

[gruntling]

If it's by water if could be "water hemp" (google it) looks very much like weed but isn't.

[threaded]

Here

Not too bright, even the ancient Chinese knew to put up raised nets so the local warlord couldn't see their plants from his satellites.

[Money Money Money]

http://www.420elite.com

Has pics of plants.

[Money Money Money]

Hydroponics is the future.

Allegedly.

Airponics Shirely?

[Money Money Money]

Hidden in the woods next to the river near my current residence. The plants are only 30 cm high but seems like weed to me . Its leafs have small dots and seem to be developing a marijuana-like shapes.

So how long do I wait before I run and pluck it all ?

If there are experts I might take a pic and post ..

Where in the country are you?

[threaded]

My mate says only the female plants can make you high, he should know as he has a loft full of the stuff... doh!

If it is causing him problems just mention less light in the early stages, and to lay off the growth hormones additive type fertilizers, but use ethylene instead. Too much light encourages auxins and along with growth hormones have a tendency to make the plants male, yet josh sticks are a good method of providing the trace amount of ethylene in the atmosphere to encourage the plants to grow up female.

Not that I know anything about the industrial scale hydroponic farming of such things.

[xoggoth]

Are you sure it isn't just Lupins? Very similar leaves.