Help rogersia leaves going brown

Hi
Does anyone know what is going on with this plant? It’s in a planter with two japonica plants.
I feed fortnightly with liquid seaweed.
TIA
Dom

 

We have 3 plants but all in the ground and growing very well, robust and tall with flower spikes. I don't think they like to be in planters. We never feed the plants. Lack of water and then sun scorch could be the problem with your plant.

 

Actually the Fatsias look a bit yellow.
I think you just have too much in too smaller place.
Are they in Multipurpose compost?

If you want to keep them in there just for this year I'd feed at least once a week and use something like miracle grow or a high nitrogen fertiliser.

Long term I dont think its going to work.