The impatiens in my waterfall were done - got a touch of frost last week - so I pulled them out today. The size of these stalks is amazing - they really like being in the water. I filled a 50 gallon yard waste bin from 5 plants.
I grow them bare roots as well, I'm glad I don't have your problem with losing waterI've grown them in my waterfall a couple of times, and their growth is astounding (just pull them from their original pot, rinse off the soil and tuck their roots up under the rocks). But my problem every time is the roots of the impatiens growing far back into the nooks and crannies of the stacked-rock waterfall (loose flagstone with a slight tilt toward the pond) and wicking water away from the pond. I've noticed once the plants really get going by mid-summer, the water level in the pond has to be raised every day. The rare plant that I wish grew a tad slower...
So guessing you could take a few indoors for the winter and stick them in some water to save till next year?
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