Also known as Bladder Senna · 2 saves
Colutea
Colutea, the genus most gardeners know as bladder senna. We track 1 varieties; the ones most used by real gardeners.
The 1 most-saved Colutea varieties
Species of Colutea
Each one is a parent of the varieties above.
Track your Colutea in Sow
Save the Colutea you grow and get care reminders timed to your zone.
Colutea questions
How many types of Colutea are there?
The Sow catalog tracks 1 distinct Colutea varieties. The most popular — ranked by 2 real gardeners — are shown first above.
What zones does Colutea grow in?
Across its varieties, Colutea covers USDA Zones 4–8. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Colutea bloom?
Most Colutea varieties bloom in spring. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Colutea 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.