yardlongs and black mulch
I had one yardlong bean come up in the landscaping this year. This ONE plant is healthier, stronger, and has more blooms on it than ANY of my previous plantings. The dirt it's planted in isn't unusually fertile, it's mostly old topsoil with lots of wood chips and black dyed mulch (courtesy of my dad). Also, the first time I watered it was last week. Any water it got otherwise was from the little rain it managed to get (it's under the awning on the porch). Do yardlong's do best in bad soil? Every other time I've planted them I've always watered and made sure the soil was really good.