"les" wrote in message . ..
This year for the first time I planted some geraniums in the same planters
as ivy (to create a trailing effect). The geraniums have not flowered
properly and the display has been very disappointing. Could it be that I
made a mistake putting them with the ivy?

Both are pretty tough customers, but ivies do tend to monopolize the
surface. Did your geraniums (let's be clear: you do mean pelargoniums
not cranesbills, don't you?) put on normal growth, or stay rather
stunted?

If they didn't grow nicely, my first guess would be that they didn't
get a chance to develop a good root system, and for that I'd probably
blame competition from the already-established ivy. Why not gently get
one out to see if its roots have spread beyond the original pot size?

Assuming the containers are big enough, if they're filled with a peaty
mixture, there could be a problem with watering, because once these
mixtures have dried out they can be very resistant to absorbing more
water. The ivy wouldn't mind this so much. The soil may also be
exhausted by the demands of the ivy, so even if you can get the water
to soak in (a drop of washing-up liquid can help) you may need to
include soluble fertilizer such as Phostrogen.

I think if I were doing it I'd dig out a hole the size of a 4-6" pot
for each pelargonium and fill it with fresh growing medium; if the
digging broke off some ivy roots it wouldn't matter. If there isn't
that much space, I don't think I'd be confident.

Mike.