This instructable is based on an activities I did for Clone Home, a workshop on plant propagation at Critter Salon in San Francisco, and the Succulent Quilt build at Machine Project in Los Angeles.
Step 1: Pick a location
A south facing wall is best. Partial sun will work but some plants may not be able to grow as well. You will have to experiment with cuttings from different plants.
Step 2: Choose your size
Step 3: Gather and cut your materials
All the materials you will need are listed below:
plastic trellis, white plastic with smaller spacing (approx 1.5" open squares) 1 piece that is your desired size of panel They will even cut it for you to size at the store!
black landscape cloth (used for weed control) 1 piece that overhangs the final size by 3" all around
dried sphagnum moss 1 bag per two 2' square panels
seed starter soil mix 1 bag
"black zip ties" approx 25 per panel
drip system supplies (installation of drip irrigation is not covered in this instrucable)
from a fabric store...
polyester felt (not wool or cotton as these will rot and fall apart) 2 pieces that overhang the final size by 3" all around
from a hydroponics store or online...
COCOTEK� GROW MAT" Organic Growing Media 1 piece same size as the plastic trellis
Step 4: Assemble your panel
First, lay down the black landscape cloth. It should be 3" larger than your final size on all sides. You will need to wrap this around your plastic trellis. Don't worry about making it to big, or exact since you can always trim off any excess.
Step 6: Third layer
Some info on coco mats:
COCOTEK� GROW MAT" manufactured by General Hydroponics http://www.generalhydroponics.com/genhydro_US/cokotek.html
Not only will roots grow under the Mats where moisture remains between flood cycles, but the Mats will also protect these roots from drying out.
Step 7: Fourth layer
Break up any large chunks.
Step 8: Fifth layer
Mix the moss and soil together.
Step 10: Seventh layer
Step 11: Wrap and zip tie
Step 12: Install your drip emitters
I use 1/2 Gallon Per Hour (GPH) pressure compensating emitters. I install a string of them along the top of each panel, with about 3 inches between emitters. Therefore each 2' square panel will require 10 emitters, 10 'T' barbs (or 9 'T' barbs and one elbow if the panel is an end piece). Use 1/4" drip tubing to connect all the emitters into a chain.
I stuck my emitters on the inside of the panel, along the top. I did this by poking a hole in the fabric, sticking my drip tubing through it, and then pushing the emitter into the end of the tubing. (Hint: the red plastic barbed end of the emitter is the part that goes into the tubing.) The idea is to have the drip end touching the felt . The felt acts a wick carrying water through out the panel to the roots.
Once the panels are installed, the 1/4" tubing can be hooked into a 1/2" black polyethylene supply line that is either plumbed into the household supply, or attached to a submersible pump. For basic help in installing a drip system, visit your local garden center. Or go the the Urban Farmer Store: http://www.urbanfarmerstore.com/ This is where I learned all I know about drip irrigation.
Step 13: Thoroughly water the panel
Step 14: Gather your plant material
I also put out a call for participants to bring their own cuttings. But unless you are doing this with a cactus and succulent society, you will probably need to supplement like I did.
Plants that are especially easy to root from cuttings are: sedums, kalanchoes, aeoniums, crassulas, basically succulents that have stems.
Plants that are easier to start by planting with root still attached or by a side offset (baby): hens and chicks, asclepids, agaves, aloes, gasterias, haworthias, sanseverias, basically the ones that don't have stems.
If in doubt, try it. If it doesn't work then you've learned something.
Step 15: Instruct quilters
Next, show them how to take cuttings and insert them into the quilt.
Each cutting will be stuck into a slot that is cut through the black fabric and top felt layer. Use scissors or a knife (assist children) to cut through these layers until you can see the brown coco mat layer. Insert each cutting by slipping it through the slot with the stem or roots pointing down. Use the location of the drip emitters to help people know which end is up.
To take a cutting, simply use sharp scissors and cut off a stem from a plant. If the plant is more of the ball shaped variety (i.e. hens and chicks), separate out a baby. If the plant is in a pot, empty the plant onto the table and pull apart all the separate balls. Shake off some of the soil from the roots and stick the roots into the slit.
It is even better if the cuttings can sit for a day so their ends can dry out. This is especially important if you want to put in any cactus cuttings. I don't do this with quilters because the spines can be a pain. (Hint: To root a piece of cactus, cut it off with a sharp blade, spray it with isopopyl alcohol, and let it sit indoors in the shade for a week. Then shove it into a slit in the fabric and wedge it in well. Use gloves! If it rots, remove it, cut off the bad end and repeat the process. Maybe let it sit a little longer.)
Step 16: Do the vertical test
Step 17: Hang your quilt
I used wood screws and large fender washers. Don't screw into the plastic trellis because it can crack after a while. It is best to screw between the holes in the trellis. The washer will clamp everything down.
Next, hook your drip system up by extending 1/4" tubing to it from the 1/2" supply line. The supply line is either connected to the household plumbing, or in this case, to a submersible pump in a reservoir. Get a digital timer and set it to come on for 5-10 minutes at a time, several times a day. I like to water twice in the early morning and once in the late afternoon.
If you want to try a recirculating system, get a fountain pump from Lowe's or the Urban Farmer Store. Use a check valve (I love the Hudson Valve www.hudsonvalve.com which can be purchased from McMaster-Carr) to top off the reservoir automatically so the pump does not run dry. Take care when using a pump that you do not try to pump the water up too high. The higher it has to pump, the lower the flow. Each pump has a head height which is the highest the pump can push water up before it stops flowing.