Hello! I am going to be building a greenwall of basil in my restaurant and have been scouring over your instructions. I have a few questions for you. 1.) For watering the wall, should you have just one tube at the top of the wall or a few tubes running horizontally at different levels? My wall is going to be about 10 ft. tall. 2.) I clicked on the link to "Jungle Walls" and they suggested using a "non-woven polypropylene geotextile fabric", which looks as if it replaces the moisture retention mat. Do you know anything about this material and if it would in fact work? It's much cheaper than the moisture retention mat, so I was just wondering! Thank you so much for your help! I'm really looking forward to putting my greenwall up!
For watering on a 10ft wall one tube across the top should be sufficient. Gravity will do the work. Almost any non-woven synthetic will work. Some fabrics will retain water better than others. You'll need to adjust your watering accordingly to suit your plants. You may want to start with a 2x2 test square before you make your wall. See what works best for basil. That way you aren't losing many plants as you work it out. Good Luck, Matt