How to grow dutch iris
Iris x hollandica
When to plant dutch iris
Plant Dutch iris bulbs in autumn to early winter for a spring bloom in April to May (NC State). Unlike most summer bulbs in this group, Dutch iris is fall-planted; in cooler regions of its range it is grown as an annual with bulbs planted fresh each fall.
Dutch Iris is timed by season rather than your frost dates, so the planting calendar does not generate ZIP-specific dates for it. Check the cited sources below to fine-tune for your area.
Growing conditions
- Lifecycle
- Perennial
- Spacing
- 4 to 6 in apart
- Planting depth
- 3 in
- Sun
- Full sun
Common problems
- bulb rot
- failure to bloom
Sources
Last updated .