Huernias, except for zebrina (which I already have).
Known-cultivar mulberry. I already have "Dwarf Everbearing", but would like anything else as long as you know which cultivar it is.
Any known-cultivar osage orange. Thornless cultivars would be extra dreamy. I will be shocked if anyone has this, but I can always hope.
1-gallon (trade gallon)
injection-molded or
thermoformed/co-extruded/euro nursery pots. Injection molded pots are the really heavy, thick pots that you don't see all that much because they are expensive. Thermoformed/co-extruded/euro pots are the thin but long-lasting pots like Proven Winners plants come in. I really like both of these types of pots because they both hold up well in the sun and tend to last a long time with use. I really don't need more blow-mold (standard cheap pots that break down pretty quickly) right now.
5-gallon version of above.