I'm having some trouble mith my wisteria. It's not that I'm finding it hard to grow, it grows thick and fast. I know this might sound strange but the problem is I find it difficult to grow straight. Originally I started with a stray leaf that was mixed in with some other plants. Out of curiosity I half planted it, and it rooted and grew. I've since taken a lot of cuttings and now have a healthy crop at the back of my tank. The things is, new shoots seem to grow curvy, spirally, or angled towards the substrate. It creeps along the bottom of my tank and invades other plants territory.
Is there some technique to prune this plant so it grows upwards towards the light?
Is there some technique to prune this plant so it grows upwards towards the light?