Little bit of cultural information needed...
On two African small trees/large shrubs.
Greyia radlkofera and Strophanthus speciosus. I believe they are both from South Africa (correct me if I'm wrong). The Strophanthus is from the Apocynaceae family. Presently, I've got them in pots but I'm going to put them out in the yard at some point in the future. I've got lots of other South African plants.
Any particulars I should be aware of?