Iris hollandica Professor Blaauw (Dutch Iris)
Award-winner Dutch Iris ‘Professor Blaauw’ features elegant and showy deep violet-blue flowers, about 3-4 inches wide (8-10 cm), with bright yellow central markings on their falls. The flower stalks are sturdy and surrounded by sword-like leaves.
Award-winner Dutch Iris 'Professor Blaauw' features elegant and showy deep violet-blue flowers, about 3-4 inches wide (8-10 cm), with bright yellow central markings on their falls. The flower stalks are sturdy and surrounded by sword-like leaves.
- This iris was granted the prestigious Award of Garden Merit by the Royal Horticultural Society in 1994.
- Flowering occurs in late spring to early summer for 2-3 weeks.
- Generally growing up to 22-26 inches tall (55-65 cm), it makes excellent cut flowers!
- Easily grown in average, medium moisture, well-drained soils in full sun. Tolerates some afternoon shade.
- Lovely in beds and borders. Spectacular when planted in groups (at least 20 bulbs)!
- Deer and rabbit resistant
- To plant in fall or spring
- All parts may cause discomfort if ingested. Wear gloves and other protective equipment when handling.
- Toxic to dogs, toxic to cats, toxic to horses.
Requirements
| Hardiness | 6 – 9 |
|---|---|
| Heat Zones | 1 – 9 |
| Climate Zones | 2B, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Bulbs |
| Plant Family | Iris Hollandica – Dutch Irises |
| Exposure | Full Sun |
| Season of Interest | Spring (Late)Summer (Early) |
| Height | 1' – 2' (30cm – 60cm) |
| Spread | 2" – 3" (5cm – 7cm) |
| Spacing | 3″ (7cm) |
| Depth | 5" (12cm) |
| Water Needs | Average |
| Maintenance | Low |
| Soil Type | Clay, Loam |
| Soil pH | Acid |
| Soil Drainage | Moist but Well-Drained, Well-Drained |
| Characteristics | Cut Flowers, Plant of Merit, Showy |
| Tolerance | Deer, Rabbit |
| Garden Uses | Beds and Borders, Wall-Side Borders |
| Garden Styles | City and Courtyard, Coastal Garden, Informal and Cottage, Traditional Garden |