Iris 'Pixie' (Reticulata) is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring blue flowers emerge. Grows well with sun - mostly sun and occasional water. Does well in well-drained soil. A good option if you're seeking something verticillium wilt resistant.
It really is tragic that these are not more common. They are better early flowers than crocus, in my opinion. Maybe one reason they remain scarce is that people simply don't believe the description! Just think, a perfect, beautiful, early-blooming iris in miniature! I have seen them bloom through the snow. They have multiplied and survived well in my garden. They can be easily forced for winter blooms.
Zones 4-10
This is an offer for top size 5+ cm around bulbs.