Free images results:

Horticulture pictures, stock photos and images


Grass Royalty Free Stock Photo
Author: Dshawley
Flower Stock Image
Author: Ostenbaken
Garden Time Stock Photography
Author: Tonyd
Moss Stock Photography
Author: Chrisharvey
Hyacinth Royalty Free Stock Photos
Author: Rbouwman

Also, here are some commercial RF-licensed images that match your search criteria:  
Horticulture Stock Photos
Author: Cycv

Explore more commercial options: More Horticulture Stock Illustrations & Vectors | More Horticulture Stock Video Footage