| How long can we expect healthy petunias to bloom in Prescott, AZ. the elevation is 5300' even though we are listed as Southwestern deserts. How can we encourage blooms, for as long as possible? |
| Petunias love warm weather so as long as you keep the faded flowers pinched off and the weather remains warm, they will continue to bloom. When nighttime temperatures reach about 40F, they will probably wither away. |
