New answers tagged growing-medium
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It sounds were Very interesting. I do not know where in Malibu or Mexico they are growing. I live in Palo Alto, CA. There is a bougainvillea growing up the walls and over the roof on a 2-story residential building. It is huge.!!
I would skip planting on the roof, The soil will dry out quickly. I would plant it in the ground and train it to grow up and over ...
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