Fabian's Update

So Fabian wrote in with an update on the amazing wall he worked on in Bangalore India. Fabian first wrote in when he was trying to source moisture retention fabric in India for the Jaaga Living Building project.

The project has come a long way since those cool mock ups. Here's the update:

Hey Matt,

long time no update.
It takes quite a loooong time to find the right plants for the wall.
Plants that can take the rough Indian environment and the not
so well watersoaking coir felt.
Still testing with drip irrigation and different times of watering.

Check out some pictures:
http://www.fabsn.com/theblog/2011/01/india-vertical-garden-update/

Cheers
Fabian

Click here to see more photos of the Jaaga Living Building project.

Greenwall in a picture frame on Etsy

I don't normally post about greenwalls I run across online. There are already great sites for that like Lushe, but this greenwall in a frame on Etsy was too cute to pass up.

Sam's Update

Sam originally contacted me about damp smell that was coming from his greenwall, in his restaurant in Auckland New Zealand, with over 1,500 plants. Sam sent me a great update with some beautiful pictures.
Sam wrote:

Hi Matthew,

These are some of the better pictures, they were taken to profile the restaurant directly, not so much for the wall itself, but I how they suit.

The wall is made up of 1700 plants, over a 6m high x 4m wide wall, that returns around on one side (the left) so its double sided for 2m .

The plants are mainly peace lily's, boston and hen& chicken ferns, and spider plants, planted into 3 layers of Hydrotech felt (which we got from you), secured back to the same ply that you used, fixed to a steel frame. We used steel as the weight of our wall was so much.

The trough at the bottom is custom made stainless steel trough, clad with raw steel for the right look - the water in the pump is then reticulated through pipework at the top of the wall by a pump. We have 5 hydroponic lamps set up to go on for 8 hours a day overnight.

We PH test, add nutrients (including clearwater), clear blocked pipes, and check all plants twice weekly... and flush out the trough once per week...

so two months in, the wall is really flourishing, it takes a fair bit of work to keep it this way though! The great thing about your style of wall is that you can get it looking amazing from the first day of installation, and you can put it together yourself if you do your homework, and get some good people to help you out.

The smell has diminished substantially also with the addition of 'clearwater' to kill of the odour causing bacteria.

So... finally... cheers for your blog and you tube post!

cheers

I am also a planted fishtank keeper and Sam's bacteria problem seems strange to me. Instead of adding something that kills bacteria I'd rather see him add something that establishes a healthy colony of good bacteria. All planted fishtanks have aerobic and anaerobic bacteria living together and healthy tanks do not have an odor. The basin of a greenwall is like a simple pond/fishtank in many ways. I add aquatic snails and worms to my basin to help breakdown plant material and add a natural fertilizer source.

Sam also mentions blocked pipes. I can't stress enough how important it is to include inline filters between your pump and your irrigation tube. Without these filters you will need to check your tubes for clogs like Sam and I. I still haven't retrofitted a filter to my system so I periodically take the top irrigation tube down and clean it out. I also do some spot unclogging with a paper clip. All of which could be avoided with a good filter.

Sam's wall looks amazing and is by far one of the most ambitious walls that was ever inspired by this site. Congratulations Sam!

Phillips Great Alternative Materials Wall

Phillip wrote in to explain how he built his first wall using alternative materials available to him in the Philippines. I think this is a beautiful wall with some very smart materials choices. I'm particularly interested in the marine plywood for substructure as this is available everywhere and much more eco-friendly than PVC sheets. I love the variety of plants and the dense planting. Also the composition of the plants and the textures are beautiful. Nice job Phillip. Please stay in touch and let me know how your wall develops. I suspect you'll be doing a lot of pruning to keep up with growth.

Dear Matt,

Im Phillip from the Philippines. I went for a vacation in Thailand and saw the beautiful green walls in Siam Paragon that is why have researched it right away and came across your video in youtube. I was redirected to your bloggsite and read all about it, hence making my own green wall. The first problem i encountered was the felt as it is not available here in my country so i used a carpet fabric that is being used for speaker boxes. I also used marine plywood covered in canvass as to protect the wood from water as pvc boards are not yet available here. I tried to slit the fabric as detailed in one of the blogs in your page and had problems in planting as not to all my plants are 3" pots. but we pulled it off and finished the wall. my wall is now 2 weeks old and i want to thank you for a very informative site i just hope it my wall lasts as i have not used the materials indicated in your site and Patrick blancs book "the vertical Garden"

I attached some pictures of my first attempt.

thank you

sincerely

phillip

Bacteria and Mold

I received two emails recently regarding mold/bacteria on walls. Sam wrote:

"Hi Matthew,

My name is Sam, i'm from auckland NZ and we built a large green wall based off your video on you tube after reaching a lot of brick walls with landscape companies, so we decided to do it ourselves.

Our wall is progressing really well, the density is great, some plant types have not done so well, but almost all have survived, and thats about 1500 plants! The one issue we are having is smell. After 2 months, the felt we used has water in it of course, and has started to smell damp and musty. On invetsigataion with our hydroponics consultant he told us is was being caused by anaerobic bacteria in the felt. He advised us to use "waterclear" that is available that goes in the water system and kills the bacteria, and he has assured me that it is not only safe for the plants but it improves the oxygen available to them. So we have tried this and while not much has happened since we applied it, it is early days.

I was wondering if you had come across this or have any advice?

cheers"

I replied to Sam via email and asked him how often he was watering. If his wall is going through distinct wet/dry cycles I'd think the bacteria wouldn't really be an issue. Also it seems odd to me that anaerobic bacteria would be an issue with plants in synthetic felt as it is a fairly open material. Was this wall made with synthetic felt for it's moisture retention layer? Sam if you are out there please let me know more. Also I'd love to post pictures of your wall so please send them in.

Jared wrote in about mold growing on his wall:

"Hey,

First off I just wanted to say I love your blog. Without it I don't know if I would have gotten my greenwall up and running nearly as well. I'm having a problem, though, that I was hoping you might know a solution for. My wall has only been up for about 4 weeks, but a little over a week ago I noticed small amounts of mold growing on the felt material I used. I've been using a vinegar/water mixture to kill it, and it works without hurting my plants, but it only kills what has already grown, and doesn't prevent further growth once the vinegar is diluted. Do you have a safe solution that might work? I was considering moving my wall so it receives direct sunlight. I heard mold has a much harder time growing with enough sun.

My wall doesn't compare to yours, but I've attached a picture in case you wanted to see. It's a self-standing wall which is why I'm able to move it when I need to. It's not completely done yet. I'm a poor grad student so I'm adding plants little by little when I can spare the money. I'll be adding another 15 today actually. In the picture I'm sending only about half is covered so far. If your interested I can send you another picture once it is complete.

I hope to hear from you soon, and thanks again for your blog. It is amazing!
-Jared Brown"

I've never had a problem with mold on my wall. I'd be curious to know about your wet/dry cycles. How often are you watering; amount and length of time. What material did you use for your felt? Let me know in the comments please.

If you have any helpful suggestions for Sam or Jared please comment. I'm no expert when it comes to mold/bacteria so any and all help would be appreciated.

Thanks,

Matt

Great alternative to PVC suggested by Eric

Eric wrote:

Hi Matt,

This is a great blog, thank you for taking the time!
I have been searching the web for actual construction details to build a living wall.

A suggestion for basin construction. Use 45mil EPDM synthetic rubber membrane.
(To me this is the easy part ;)) I design and build ponds and waterfalls for a living.

EPDM is reusable, recyclable, and has better environmental impact profile than PVC. - See below

1) Build a basic plywood box in whatever shape and dimensions you need.

2)Calculate liner size L x W needed like so:

L x W
(length + 2x Height)X(width + 2x Height)

3)Line the box with 45 mil EPDM rubber, -folding it like a gift box in reverse it to fit the shape of your box.
3) Use a staple gun to attach liner to top edge of your box, and trim the edges with a blade or sharp scissors.

EPDM is available in custom cut sizes as pond liner for water gardens at many garden centers and is available on line at any pond supply place in 5 ft. increments.

*Ethylene propylene diene (EPDM) type rubber is recommended by the Danish Environmental Protection Authority as an alternative to PVC."
"Alternatives to dioxin sources in the Mediterranean," by Beverley Thorpe, Clean Production Action for Greenpeace Mediterranean Project (September 1996)
http://archive.greenpeace.org/toxics/reports/btf.html ( As found in Google Answers Answered By: mother-ga on 14 Jun 2002 14:30 PDT)

Thanks Eric and keep the basin suggestions coming. Readymades and materials suggestions are all welcome.

Jaaga's Living Building

Fabian Sixtus Koerner (quite possibly the coolest name ever) wrote to me awhile back looking to source moisture retention material in India. I sent him this link for locally made coir fabric used for greenrooves.

Fabian wrote again recently to share his work on his amazing Living Building. It's got every eco thing you can think of; solar panels, roof gardens, vertical gardens, aquaponics, composting, and more. What an amazing project! Check it out for yourself here.