Shade Gardening: Favorite Astilbe 2, 1 by pirl

pirl wrote:
I'm not growing Key Biscayne so I'm no help to you.

One way to check the astilbe by the oak is to remove half and plant it elsewhere, then check on the performance of each half next year. Compost underneath the division and all around the plant, as mulch, will be a big help to it. You can also add compost where you remove a chunk and that area will then be most hospitable to new growth.

I finally took more photos of Pumila and have to say I'm surprised it isn't as lavender as I always thought it was. It isn't exactly pink either so I'll call it orchid.