Persian Buttercup plant profile
Ranunculus asiaticus
A perennial flower for full sun.
Last updated .
When to plant
When to plant Persian Buttercup
Plant Persian buttercup tubers, claws pointing down, several weeks before the last frost date, or start them indoors and plant out in spring before hot summer weather (NC State). They are a cool-season grower that goes dormant in summer; dig the tubers and store them dry and cool to save them for the next season.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Persian Buttercup in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Full sun
- Planting depth
- 2 in
- Lifecycle
- Perennial
- Spacing
- 6 to 8 in apart
- Hardiness
- Zones 8a to 10bFind my hardiness zone
Common problems
Watch for these
Also watch for: tuber rot.
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Ranunculus asiaticus (Persian Buttercup, Ranunculus)
NC State Extension Gardener Plant Toolbox. Supports general reference. Checked 2026-06-18.
- Toxic and Non-Toxic Plants: Buttercup (Ranunculus species) entry
ASPCA Animal Poison Control Center. Supports pet-safety verdicts for dogs and cats. Checked 2026-07-18.