[Jason Reibold]

ahhhh, you were interested the hardiness of the plants from two different types of nurseries! I’m on board now.

I’m curious what answer you got.

I believe that a plant that is grown with the least amount of unnatural intervention would make the most hardy plant. The more environmental stress the plant goes through makes it much more adaptable as it grows. That’s great that nurseries are heading in that direction… I wonder how much extra it’s gonna cost though. So yea, I would definitely go with an organic plant as long as it is from a nursery in the same zone and region as me!

[Jason Reibold]

I have been studying sustainable systems for awhile and am finishing up my degree in horticulture, but I still don’t understand your use of the word ‘organic.’ From reading your question a few times it seems that the use of organic plants is less relevant on a green roof than possibly native plants… or what I come in contact with a lot is ‘drought tolerant plants.’ The word organic gets tossed around a lot but depending on what you’re talking about it mean different things… I’ve worked on a few green roofs already and the main qualifications for plants in pretty much any zone are shallow roots, drought tolerant, succulents are great, grasses are good, and from a utilitarian point of view… herbs are nice! Hope this helps. jason.

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