Question
I have a couple of spiderplants in pots, a month or so ago I divided them up then the leaves began to brown where they met the stem and fall away. This was diagnosed as root damage from the repotting and possibly a case of root rot as well. I was advised to remove any rotting eaves and cut back on watering, which I have done now for the last three weeks or so. If the root systems of my spiders do recover sufficiently enough (I've smelled the root system as someone advised and the all smell okay)how long could I expect for new growth to show and would it be feasible that a potassium rich fertilizer would help the roots at all?.

Answer
Hi Matthew:
Assuming the root issues have been solved and the plant is getting sufficient light and moisture, usually 3-4 weeks should be good. Be sure to avoid overwatering since this can lead to bigger issues. Use a well drained soil-less mix.  If the roots are still in trouble, you should continue to see a steady decline in the foliage. Just be patient.  I would avoid any fertilizer right now- wait a bit an then consider a well balanced slow release such as an Osmocote formulation.  These plants can usually quite durable.

Steve