Butterfly bush - sun/shade question
I just ordered 2 butterfly bushes (Harlequin and Black Knight) and when they arrive in september plan to plant them next to each other on a spot in my back yard where they should have sun from about 11 am (in the heat of the summer - earlier and later then mid June it would be from noon) to sunset with a breaf shadow around 4 pm (about 20 minutes) from a nearby tree.
So, my question is, from your experience, do you think this is good place for them, and will they flower well there?
Also the soil is mostly clay and water has hard time in absorbing into soil (when I water the plants the water stays on the ground making puddles for about 2-4 minutes before it is fully absorbed), so I guess it would be best to put the BB in raised beds, right?
Thank you for answers :))