We recently purchased 5 new hibiscus plants. We already had one in our yard which was doing great. The problem with the new ones is that on 2 the leaves have turned yellow and fallen off. On 2 others the buds are not opening up. I don't see any bugs but a couple of the leaves do have holes. I am posting a few pics of what they looked like at first. I haven't planted them in case I need to return them, could that be the problem?

{{gwi:895238}}
{{gwi:895239}}
{{gwi:895240}}
{{gwi:895241}}

These buds have been like this for 2 weeks

{{gwi:895242}}

{{gwi:895243}}

Is this one dying? It still blooms though?

{{gwi:895244}}

Please help. I love my hibiscus plants.