How to Find Out if Your USDA Plant Hardiness Zone Changed
Guess what? You may be in a different planting zone now and not know it.
With little fanfare and scarcely a blip in the news, the USDA recently updated their hardiness zone map. You can visit their website to check if the changes affect you.
The last time the USDA updated was in 1990.
What does it mean? Well, climate change, for starters.
You may be able to grow more plants than you realized (or have to give up on rhubarb and gooseberries for good). It also means some of your gardening books may have been rendered out-of-date. For me, it means my garden is now based in zone 8a instead of zone 7b.
Because of this, I had to make some slight corrections to my recent hardy citrus post. McKenzie Farms also changed to zone 8a, but considering they have been growing citrus for 20 years, the data still applies to growers attempting citrus in zone 7 and up.