Astilbes "magically" revived?
Back in early May I planted two Astilbe plants right outside my living room window where there is mostly shade. The area almost becomes a pond during downpours because of the neighbor's rain gutter (I live in a townhouse/apartment complex) and the ground is uneven. My Astilbes were growing rapidly and looked great, one flowering before the other.
Not long after the second one flowered both plants started turning brown. At first I thought just the smaller one was dying, possibly because of a spider web covering part of it, but then the larger one started turning brown. They had been getting water from frequent rains and they are in shade most of the day. During the very hot weather earlier this summer I watered them a few times so they wouldn't dry out, but I stopped when they started to turn brown. I was extremely disappointed when they shriveled up and seemed to have died but held out hope they would grow back next spring.
A few weeks after my Astilbes appeared to be dead I noticed green growing among the brown leaves and stems. I just figured it was weeds taking over that area, but after they got bigger I realized the leaves look exactly like the leaves of my Astilbes. Apparently both are growing back already and are looking great, the smaller one now being the larger one. I was going to dig a trench to divert excess rain water away from that area, but now that the Astilbes have come back (and the Begonias are enjoying that area as is) I am hesitant to change anything in that corner. Has anyone had Astilbes do this to them? I am glad they seem to be growing back, but also a bit confused about the whole ordeal. I have never had a plant look so dead and yet come back from entirely new growth within the same season.