Allotments 4 All

I want to buy some seed from jungleseeds as I'd like to have them naturalising at the north facing point at the bottom of my plot but I dont know much about growing them.

Can anyone give me any advice?

I bought some arisaema speciosum, they are just starting to unfurl some leaves. 

I'm no expert, just got them because they loook pretty, so all I did was place them on compost in pots in a propogator on the windowsill. 

They sprouted pretty quickly but have taken a while to do anything more. 

Sorry haven't really been much help!!
Will try and post a picture.