Will a red tipped photinia grow well in clay soil?

Question

We have a thin layer of good soil, but it turns into dense clay.

Answer 1

Few plants can tolerate compacted clay soil; therefore, your best bet is to amend it. Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/how-to-improve-clay-soil.htm
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm