Growing Things: Is it safe to split geraniums?

Q: I have watered with fertilizer my geraniums that are showing new green growth. The plants are four to five years old and heavily root-bound.  I stored them after re-potting into small pots for winter. Is it advisable to use a fine knife to split the root in half, and then plant them in the flower bed directly? How do you split the roots into 2 plants? Read More