Posted: 07/10/2016 at 15:24
Clay is what I have ddoris. They're more than happy in it. It's why they grow well up here in Scotland - nice moist clay soil
I always improve the soil before planting anything though - plenty of compost and manure to help keep it open and friable. We don't have to worry about lack of moisture, even in summer when it's most important, but if you're in a drier part of the country, the manure will help with moisture retention too. A mulch will also help after planting.
If it's a bit pot bound, make sure the roots are teased out a bit before planting, and soak it thoroughly. Nicely prepared site for it, and then keep it well watered till established.