"Jayne Doe" wrote in message
om...
They are in a large container. The plants themselves are twice the
size they were when I originally purchased them - so I must be getting
some part of it right. I'll try fertilizing the next time they are
due for watering and see if that helps.

Jayne, be sure to use a fertilizer with a high middle number like the
standard Miracle Gro formulation (15-30-15).

Jim