Zones 3 to 9 refers to hardiness zones used in the USA and Canada. The zones listed for this rose means that it can live in climates where the yearly average MINIMUM temperature ranges from -30 to -40 degrees Fahrenheit up to 20 to 30 degrees Fahrenheit. Our summers get into the 90's (Fahrenheit!) with lots of humidity, which doesn't bother the rose.

This is a very tough and easy to grow rose. It gets to be a nice thick rounded shape and hardly needs pruning. You can plant it as for any rose - enriched soil in a deep hole will make it happy. (I started with a two foot wide by two foot deep hole with compost and peat moss added to it.) It sounds up shoots from underground, so you can either let it spread, or dig the shoots up to give to friends. The buds are pink, and the flowers open a very cool smooth pale lavender, with a sweet spicy smell. It didn't lose a twig during an extrremely cold winter this year.

Hope this helps.