Preferred mix for angraecum sesquipedale

[peeweelovesbooks]

Hi there.

I purchased an angraecum sesquipedale about 8 months ago and it's pretty much doubled in size. I think it's time to repot, as the roots are winding themselves outside its little pot now.

I currently have it potted in 50% coir and 50% bark mix, and it's growing outside on my porch. I live in South Florida.

Can you recommend a good mix. Or, should I just repot using the same mix? Should I add something more? I tend to be a heavy waterer.

Thanks for your suggestions!!