Pelargonium

[Coppit]

I was given a good-quality potted plant (9" dia ) last year. In no position to take cuttings I cut it down and now there are a lot of new shoots. How many should be allowed to grow?

[Tuvok]

Let it grow - you can always prune it if it gets too big.

[choux]

RHS advice:
Many pelargoniums are naturally bushy. But pinch back the tips of shoots, including those of young trailing ivy-leaved cultivars, in spring or early summer to encourage further branching. Train tall, strong-growing cultivars on canes to form a pillar.

Deadhead plants regularly to promote flowering.

https://www.rhs.org.uk/plants/pelargonium/growing-guide