| It is a mediterranian plant, so it looks like you plant in spring and dig and store over winter if this is the species of Ranunculus you have: |
Here is a link that might be useful: WSU
| Tubers are hardy to 10F/-12 C. Beyond hardiness range treat as annual, planting as soon as the ground can be worked in spring |
Here is a link that might be useful: Ranunculus asiaticus - Persian Ranunculus, Turban Ranunculus. - Plant Finder- Sunset.com