Hardy hibiscus dying fast
I bought an H. moscheutos about 10 days ago. It came from Lowe's and was actually 2-3 individual plants in a 1-gal pot. I potted the whole thing up in a terracotta pot in a mixture of MG potting mix, perlite, sand and vermiculite. I have kept it well watered, never letting it dry out. All its blooms opened and all buds that were on the plant which were small had eventually matured and opened normally. The problem is that the branches of the plants died one by one. Entire branches would suddenly (like overnight) have dried withered leaves. There is only one branch left (not even a whole plant). This remaining branch put out 2 normal blooms yesterday. It is only a matter of time before it too is dead. I thought maybe it was just going dormant for the winter but it is only June. Any help? Thanks. Oh...it's in full sun.