Possible Clues:

• Land taken over to strangle weed almost producing flowers
• Bulbous Eurasian flowering plants
• Daffodil and jonquil, e.g.
• Scan iris, scattered in other flowers
• Plants of the daffodil genus of the amaryllis family
• Plants of a genus which includes daffodils
• Blooming well hurried up before the century is up and down (8)
• Scan iris for spring flowers
• Plants one's given after wandering in 23 ac
• Variety of iris can, with sulphur, produce flowers