| Your spraying method is usually sufficient and not what I worry about when I hear misting.
On a mount there is always the danger that there is not enough water to reach into the center of the sphagnum. If you keep the sphag moist this is not a problem, but if it dries to where it becomes hard I would soak it.
Over about two years all the new roots will be on the outside of the sphagnum and the roots inside will die off. This is a natural progression and you do not need to be concerned. The outside roots will of course dry faster. I do not recommend adding more sphag. The roots look good outside and only require more regular watering.
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jerry  |