Timaru Botanical Garden has a section devoted to species roses and the HMF list of plants grown, with one or two exceptions, appears to be confined to the roses in that section. The Anderson Rose Garden, which is also a part of Timaru Botanical Garden, features a small selection of modern roses but is listed in HMF as an independent garden.

Timaru NZ is definitely not USDA Zone 7a. I think someone pressed 7 instead of 9. Timaru is actually USDA Zone 9. It is debatable whether it is Zone 9a (cool) or Zone 9b (warm). Going by what it is possible to grow here ie: Phoenix canariensis; citrus;Sth African natives;Aussie natives plus many other rather exotic plants. As a resident of Timaru and going by last winter's (09) absolute minimum out at the airport (colder location) and also the fact that last winter was a particularly cold one, Timaru City has a Zone 9b(a) climate which means cool Zone 9b as opposed to say Nelson at Zone 9b(b). Minus 6 degrees centigrade is the coldest temperature possible at Timaru Airport but built up Timaru is unlikely to experience anything lower then -3.5C. Please note that in general, in NZ, we talk of minimum temperatures being taken at approx 6 inches above ground level.At 6 feet (2 metres) the temperatures are milder.