Odd. When I Google mini garden, I only get 15,700,000 results, and many are restaurants. Google must think I'm more interested in eating than in gardening.
I agree that "rock garden" plants wouldn't necessarily be checkmarked suitable for mini gardens, but I was talking about alpine plants, which are small and are usually grown in containers, so unless the category included a lengthy description, we'd constantly be running into problems keeping the category useful for your purposes.
We already have some easily misunderstood categories in the database. Alpine/rock gardening is one of them. We constantly have to weed out plants that were checkmarked suitable but aren't suitable at all. People include all sorts of huge plants, including trees, and otherwise inappropriate plants, just because they will grow above a certain altitude or because they will grow in soil with lots of rocks in it.
