Growing Plants in Tunnels


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I recently watched a documentary on TV on how farmers plant spices in underground tunnels in London. Has anyone ever tried that? That is meant to improve food security but I don't think that it is an easy job. I also learned about how to make small gardens on roof tops as farmers do in Egypt. Anyone who has ever tried these farming techniques?
 
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I'm new to these forums and was interested in you topic about growing in under ground tunnels. I haven't heard of it and neither have I seen a doco on it but will be most interested to hear from others who know about it
 
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No clue, got a link? Security from what, for what reason?

OK I just googled and that's pretty interesting! Having internet issues so on my mobile device and don't know how to post a link...security from weather, allows for year 'round gardening, much more environmentally friendly and saves resources. If someone smarter than me can figure out how to post a link that would be helpful. :)

(Or I suppose I could take my own advice and Google how to copy and paste on an android device!) :p

My puppy is teething and ate the modem connector thingie right off the wall. o_O
 
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In Metro Manila's main thoroughfare called EDSA, there are several underpass, about 100 meters long. In that tunnel-like area, there is a vertical garden which holds plants in plastic pots. But unlike a tunnel with zero sunlight, that area in the underpass gets small sunlight. The plants look good and thriving in those plastic pots. What a nice decoration for the busy avenue.
 
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To be honest, digging up a tunnel sounds like too much work to me. I don't think I'll ever do this. Also, plants need fresh air and sunshine to grow healthy.
As for gardens on rooftops, many people in Venice have them. They're beautiful:)
 
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I can see why they would have roof top gardens in venice as there is no ground. I didn't see any when I was there. Wasn't interested in gardening back then. But I wonder how they get on with the salt air?
 
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