How to Construct a Poor Woman's Green Roof
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Shopping list includes potting soil, gravel, plants, and concrete mixing tubs. A drill with a large bit is helpful. If you don't have a drill, you might be able to make holes with a biggass nail and a hammer, but these pans are pretty rugged for plastic. The medium tub at Home Depot is a good size for this project, but use whatever size works for your space. http://www.homedepot.com/h_d1/N-5yc1v/R-202086173/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
|Medium Concrete Mixing Tub|
Drill at least one hole into the end of the tub, about 1-2 inches up from the bottom. I made 4 in mine, but that might be overkill. This will allow excess water to drain, but also gives it a reservoir that will reduce the amount of watering you will have to do.
Pour about 1-2 inches of gravel into the bottom of the pan. I used Home Depot's 40 pound bags of pea gravel. One bag will be enough for 3 or 4 tubs.
Spread some of the potting soil over the gravel, and then arrange your plants in the tub. Pack more soil around the plants and water generously.
|These succulents are all hardy to -20 F degrees and need very infrequent watering.|
|More drought and cold tolerant succulents.|
|Mixing pan, pea gravel, |
soil, and plants.
|That spot on the leftish side |
shows the position for one
of the 4 drainage holes I
drilled with a 3/4" drill bit.
|Spread 1-2 inches of gravel. |
This allows for drainage from the soil
and creates a reservoir for water.
|Spread some soil over the gravel, arrange the plants in the container and fill with more soil around the plants. I started out with about 6 one-quart plants per container.|
|By the end of the summer all the containers were overflowing, and in the second year I could split them and transplant them into other containers.|
|One of my green-roof containers in between some other larger planters|
|Some succulents have a nice flower, but most are various |
shades of yellow, green, or red foliage.
|The one on the right has plants my cats like to nibble.|
|Cat grass from PetSmart is in the back corner,|