29 saves
Caltha
We track 1 varieties; the ones most used by real gardeners.
The 1 most-saved Caltha varieties
Track your Caltha in Sow
Save the Caltha you grow and get care reminders timed to your zone.
Caltha questions
How many types of Caltha are there?
The Sow catalog tracks 1 distinct Caltha varieties. The most popular — ranked by 29 real gardeners — are shown first above.
What zones does Caltha grow in?
Across its varieties, Caltha covers USDA Zones 4–7. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Caltha bloom?
Most Caltha varieties bloom in early spring. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Caltha should I choose?
Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.