Also known as Blue Chalksticks · 2 saves
Curio
Curio, the genus most gardeners know as blue chalksticks. We track 1 varieties; the ones most used by real gardeners.
The 1 most-saved Curio varieties
Species of Curio
Each one is a parent of the varieties above.
Track your Curio in Sow
Save the Curio you grow and get care reminders timed to your zone.
Curio questions
How many types of Curio are there?
The Sow catalog tracks 1 distinct Curio varieties. The most popular — ranked by 2 real gardeners — are shown first above.
What zones does Curio grow in?
Across its varieties, Curio covers USDA Zones 9–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Curio bloom?
Most Curio varieties bloom in late spring. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Curio 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.