I've planted several shade-loving perennials in an attempt to brighten up a very dark area of my yard. However, I believe I made a mistake; I planted in a way in which some of my plants are in a depression. I didn't do this intentionally, well maybe it was a subconscious effort to make a pool area for water to gather -- we've been in a little bit of a drought lately.
So my problem is that all the mulch eventually collects in the hole and the base of the plant is always moist, stressing out the plant. Although I do have some plants that I managed to plant on the level, but I still experience the same problem, granted not nearly as bad as the plants in a depression.
So I'm thinking from now on I'm going to plant the perennials on top of a slight mound. Is there a problem with this method?