Lola's Garden

A group of flower photographs from Lola's Garden, a garden situated in the mountains west of Las Vegas
http://www.drgibson.com/gibson/lolasflowers.html

The Herbarium

A collection of botanical prints, flowers in paintings, and rose engravings from a variety of sources, chosen mainly for their beauty as art.
http://www.herbarium.com

Wildflower Photography Tips & Techniques

Various photographers offer tips on capturing the best flower pictures, with suggestions for equipment, timing, and technique.
http://www.calphoto.com/phototip.htm

Floral Radiographs: The Secret Garden

Albert Richards, University of Michigan Professor Emeritus, provides a brief history of his work in creating black-and-white radiographic images of flowers, and displays dozens of them in a gallery.
http://www-personal.umich.edu/~agrxray/

Digital Flora of Texas: Vascular Plant Image Gallery

Searchable database for a vast collection of photographs, intended to show botanical details.
http://www.csdl.tamu.edu/FLORA/gallery.htm

The Visual Garden

Durham, North Carolina, gardener presents photographs of perennials, gardens, and photographic tours of special gardens.
http://www.phy.duke.edu/~fortney/vg/vg.html

Mark Charneski's Fresh Flower Scans

A collection of high resolution flower portraits created by scanning live fresh flowers directly into the computer, resulting in vibrantly colored images against a black background.
http://www.geocities.com/TheTropics/Island/6801/mark/marks.html

The Floral Network: Flower Image Library

Features floral images arranged by both common and botanical name.
http://www.thefloralnet.com/fil/

Philographikon: Botanical Prints

Collection of historical and decorative prints of flowers, plants and fruits from various sources. Individual prints with short descriptions and background information can be viewed online.
http://www.philographikon.com/botanicalprints.html

Digital Flowers

Photos of many types of flowers taken with a digital camera.
http://flowers109.tripod.com/

The Garden Helper: Free Desktop Wallpaper

Large photo galleries covering many aspects of plants, gardening, and nature, from flowers and fall foliage to butterflies and waterfalls.
http://www.thegardenhelper.com/freewallpaper.html

Magda's Gallery

Home gardener's pictures of tulips, violas, roses, lobelias, crocuses, in thumbnail gallery and slide-show form.
http://magdasgallery.omnisurfer.com

Mark's Garden Plants

Photo galleries for plants in many genuses; special emphasis on plants in the geranium family, hellebores and snowdrops.
http://www.marksgardenplants.com/

Wbgarden.com

Photos of unusual and dwarf conifers, water features and koi in a private Czech garden.
http://www.wbgarden.com/

Trevor Nicholson Christie

Specialist horticultural and garden photographer, supplying images from an extensive library. Photo galleries presented by theme.
http://www.tncphotography.co.uk/

Juergen Becker Garden Photography

German photographer presents some of his work in online galleries organized by designer, and provides references to his publications in magazine articles, books, and calendars. German and English versions.
http://www.garden-pictures.com/

Digital Photo Artistry

Amateur photographer presents extensive galleries focused on African violets, roses, lilies, hydrangeas and orchids, many taken at flower shows.
http://www.digitalphotoartistry.com/

Floral images

Pictures of wildflowers and garden flowers grown in West-England, Ireland and the Pyrenees, indexed by botanical and common names. Botanical and other information accompanies each photo.
http://www.floralimages.co.uk/

The Wilcox Collection

Offers collections of historical botanical prints, along with fauna equivalents.
http://www.wilcoxcollection.com/

Beautiful Things

South African hobby photographer presents galleries of professional quality Photographs of flowering trees, flowers, bromeliads, leaves, birds, spiders, insects, and bugs, taken mainly in his garden.
http://martin.ice.org/Beautiful_Things/

Flower Pictures

Galleries of many garden flowers, cacti, plants, and some garden insects too, for free use on the web.
http://www.flowers.vg/

Flower pictures

Bountiful picture galleries of flowers from the tropical and temperate climates, as well as a butterfly gallery.
http://www.flowerpictures.net/

Flower Images From Japanese Field

Amateur photographer presents several pages of flower photos, for non-commercial use.
http://www.fortunecity.com/greenfield/bigmama/67/

Garden Photography

A few tips on taking high-quality garden and flower photos.
http://server1.fandm.edu/people/j_grushow/photo.html

Be a Great Garden Photographer

Professional photographer offers tips on achieving better results using automatic and manual cameras. Include pages on slide film, lens and camera selection.
http://gardenphotos.com/tips/tips.html