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Just realized my neighborhood's rain gardens actually work after last week's storm
We had a huge downpour last Tuesday, like 3 inches in a few hours. I walked around the block the next morning and noticed the rain gardens on my street were full of water, but the ones they put in 2 years ago had already drained. The new ones from last fall were still holding water. I asked a guy from the city who was checking them and he said the older ones have deeper roots now so they absorb faster. I used to think these things were just decorative holes in the ground. Has anyone else seen a big difference with green infrastructure after a few seasons?
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derek9942d ago
I saw a segment on PBS a few months back about how rain gardens in Portland really started working better after about three years once the native plants got established. The guy they interviewed said the roots need time to break up the compacted soil from construction and create channels for the water to soak in. So it makes sense your older ones are doing their job now, the roots are probably a foot or two deeper than when they were first planted. Its like they need a season or two to settle in before they really start pulling their weight.
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