1. At the top of the plant library, right next to the search bar, select the filter funnel.

2. Click on the zone dropdown menu next to "What's your hardiness zone?"

3. Select your hardiness zone.
   
   Alternatively,

4. Select Update location.

5. Type in the street address and zip code for your design.

6. Click Save.

7. Your location and hardiness zone have now been updated!

Or, see below: