This cultivar appeared on a list from the
It is a sport of H.
The green foliage has creamy white marginal variegation
with some leaves showing streaked variegation. 'Unstable
Mabel' is a small to medium size plant with leaves
that are slightly rippled, moderately corrugated,
broadly ovate and have a glaucous bloom on top.
There is also a hosta named H. 'Stable Mabel'.