1.   Alas, the tree tomato is one of those beguiling novelties that the nursery trade is so fond of.

2.   Four Winds Growers in Fremont provides a large range of dwarf citrus to the nursery trade, and many local nurseries carry Four Winds citrus.

3.   I assume this is Ageratum houstonianum, which is the species that has been developed into various forms by the nursery trade.

4.   Petrie particularly likes to promote plants that are just entering the nursery trade and uses his flower-show display to demonstrate their potential.

5.   Since China opened to visitors, the focus of gardeners has been the stream of wild plants from remote areas being introduced into the nursery trade.

6.   They are all being promoted to the nursery trade, so they are widely available.