I bought one plant of Heuchera x villosa 'Brownies' in 2008. It grew so well for me that I began to divide it and spread it around. It never frost-heaved, had pests or seemed to need any additional moisture. Eventually I created a couple of large sweeps of 'Brownies' in spots where I needed a no-maintenance ground cover that didn't really call attention to itself.
I went online the other day to confirm its identify and discovered my experience with 'Brownies' is not the same as that observed at the Mt. Cuba Trial Garden.
"Unfortunately, the floral display was unimpressive due to the floppiness of the tall, white inflorescences," was their opinion on their website. They felt its strength was all in its foliage. i love the very tall wands of white flowers 'Brownies' produces right now when many Heucheras are winding down flower production. They are among the longest flower stems of any Heuchera I grow; easily two feet long.
Recently it rained for six hours; mostly nice and gentle with only a couple of strong downpours. The last couple of days it's been very windy and gusty. All of which is to say the long flower wands on my 'Brownies' are still upright, despite our weather and the experience of Mt. Cuba. Plants clearly don't pay attention to experts or the written word.