| Classification: | Species |
| Life cycle: | Perennial |
| Sun Requirements: | Full Sun to Partial Shade |
| Soil pH Preferences: | Slightly acid (6.1 – 6.5) Neutral (6.6 – 7.3) Slightly alkaline (7.4 – 7.8) |
| Minimum cold hardiness: | Zone 3 -40 °C (-40 °F) to -37.2 °C (-35) |
| Maximum recommended zone: | Zone 8b |
| Flowers: | Showy |
| Flower Color: | Other: Yellow or various shades of purple is the most common, but blue, cream, white, and blended colors are also found, there is often a darker spot on the falls |
| Flower Time: | Late winter or early spring |
| Underground structures: | Rhizome |
| Propagation: Seeds: | Self fertile Stratify seeds Suitable for wintersowing |
| Propagation: Other methods: | Division |
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