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Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises Celebrating Gardening: 2015
I was one of the first 300 contributors to the plant database! Tropicals Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge)
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eclayne
Dec 2, 2012 8:37 PM CST

Plants Admin

This is more a general comment about all your great rock garden photos. A true gardener taking advantage of all available terrain. What kind of rock are you dealing with?
Evan
Name: Lori
Calgary, Alberta, Canada
Plant Identifier
growitall
Dec 2, 2012 10:07 PM CST
Thanks, Evan! The rock in those beds is tufa, which is calcite (calcium carbonate) deposited by flowing water as it crystallizes out of solution - very porous and relatively light for its volume (though not so light as the lightest pumice by any means). I wish the rock garden beds in my yard were natural rock outcroppings but unfortunately, I had to build them! Big Grin Making them look not too unnatural is always a challenge! Tufa is great for rock gardens and provides a great environment for many alpines (not those few that really require acidic conditions, though, of course).
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Plant Database Moderator Forum moderator Aroids Irises Celebrating Gardening: 2015
I was one of the first 300 contributors to the plant database! Tropicals Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge)
Image
eclayne
Dec 2, 2012 11:18 PM CST

Plants Admin

You've done a wonderful job Lori. Thumbs up Congrats and thanks.
Evan

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