White Flower Farm
White Flower Farm frequently offers imported lily of the valley pips for forcing (order in late autumn for December delivery) as well as some of the largest sized and newest amaryllis varieties available in North America. An exclusive source for pretrained ‘tree’ wisteria plants.
Old House Gardens
North America’s premier source for heirloom bulbs including antique ‘broken’ tulips, double hyacinths, gladiolus, heirloom dahlias, and more.
McClure & Zimmerman
Excellent commercial source for both tender and hardy Dutch imported bulbs. They publish a spring and autumn catalog. Often carry some limited varieties of rarities like Tecophilia, Lachenalia, and Velthiemia.
Brent and Becky’s Bulbs
Full selections of Dutch and American-grown bulbs, particularly narcissus but also prechilled bulbs for forcing, and for southern gardeners. They also carry indoor bulbs, Christmas Amaryllis, and a good selection of paperwhite narcissus varieties.
John Scheepers
Well-known American importer of fine Dutch bulbs, both tender and hardy.
Van Engelen Inc.
The wholesale site for John Scheepers offering discounts on larger quantities of imported Dutch bulbs.
Telos Rare Bulbs
Some of the hardest-to-find rare bulbs all grown in their northern California nursery. Extraordinary collection of many greenhouse and tender bulbs like Lachenalia, Oxalis, Tecophilea and more.
Odyssey Bulbs
Good specialty and rare-bulb catalog for very unusual hardy bulbs especially crocus, fritillaria and colchicum.
Rareplants
(formerly Paul Christian Rare Bulbs)
An ever-changing seasonal collection of rare and collector bulbs, both tender and hardy—some very rare. Ships most bulbs to US and Canada, others require CITES certificate.
Schreiner’s Iris Gardens
A large family-run 100 acre Bearded iris farm with many of their own introductions and award-winning iris not typically found in the trade.
Joe Pye Weed’s Garden
A small specialty nursery long dediated to breeding and introducing Siberian irises, Versicolor iris and Interspecific hybrids. Only ships to US and Canada.
Aitken’s Salmon Creek Garden
Comprehensive selection of bearded, border and Siberian irises.
Honker Flats
Nice selection of newer crosses of gladilous as well as other plants.
Pleasant Valley Glads and Dahlias
Big selection of farm-raised gladiolus and dahlias.
Song Sparrow Gardens
Peony’s Envy
Hollingsworth Peonies
https://www.hollingsworthpeonies.com
Cricket Hill Garden
Plant Delights
Digging Dog
Rare perennials and other plants
Far Reaches Farms
https://www.farreachesfarm.com/Default.asp
Kartuz Greenhouses
Blackmore & Langdon
British source for world-class delphiniums and tuberous begonias.
Baker Creek Heirloom Seeds
Swallowtailgardens.com
http://swallowtailgardenseeds.com
Fedco Seeds
Territorial Seed
http://www.territorialseed.com
Adaptive Seeds
Silverhill Seeds
South African seed source for a massive collection of wild-collected seeds shipped worldwide—many unusual annual flowers native to South Africa like Ceretotheca and Lachenalia seed.
Jelitto Seeds
Imported seeds for many annuals, biennials and perennials. Prechilled and pretreated seed as well especially for primroses, delphinium, and holyhocks.
Annies Annuals
Enchanting Sweet Peas
Renee's Garden
Floret Flowers
https://shop.floretflowers.com
Cut flower seeds, dahlia tubers, and bulbs
Siskiyouseeds
Owl’s Acre
Roger Parsons Sweet Peas
Excellent selection of all sweet peas including Spencer varieties, novelties, and species.
Larner Seeds
An extensive list of native Californian annuals and other wildflowers for naturalizing or for gardens. Good source for fresh seed of cool-growing Californian natives often available in bulk quantities including clarkia, gilia, layia, Limnanthes, nemophila, phacelia, and more.
Eden Brothers
Huge collection of flower seeds (more than 40 varieties of annual poppies alone).
Silver Falls Seed Company
Specializing in North American natives and western wildflowers including hard-to-find mallows, clarkias, and phacelias to name a few.
Chiltern Seeds (UK)
A comprehensive selection of interesting, rare and hybrid garden seeds including many choice annuals.
Johnny’s Selected Seeds
Excellent source for many seeds for both professional farmers and home gardeners.
Select Seeds
Fine selection of hard-to-find and common flowering annuals and vegetables.
Barnhaven Primroses
Plestin-les-Grèves, France Barnhaven name is synonymous with the ‘worlds finest primroses,’ particularly polyanthus types. Mail order currently available to much of Europe, and seed (sometimes plants but subject to government regulations) to North America.
Pops Plants
Finest award-wining auriculas, alpine auricula, show auricula and edges, selfs and fancies. Often can ship dormant and clean plants without soil to North America subject to USDA regulations.
Wrightman Alpines
https://www.wrightmanalpines.com
Specialty alpine nursery in New Brunswick, Canada
Sequim Rare Plants
Fine, small nursery in Washington State with many rare plants including primroses.
Kings Mums, US
North America’s only nursery dedicated to chrysanthemums. Fine source for a full selection of cuttings for both cut flower, Japanese and exhibition mums.
Capobianco Creations
John Capobianco is an independent chrysanthemum enthusiast and pro-grower who offers a limited selection of cuttings to US growers. Often has fancy European and hard-to-find English varieties.
Ivor Mace
www.Ivormace.com (UK only)
Independent Chrysanthemum enthusiast and mum-evangelist. The UK’s top grower of show mums, sells cuttings and very active on social media, particularly Facebook and YouTube, providing updates and growing tips.
Woolmans
Chrysanthemum cuttings (shipping only to UK and parts of the EU)
Dahlia Addict
Not a nursery, but a database where you can search for a particular variety and suppliers are suggested throughout North America.
Connell’s Dahlias
Dahlia Barn
Lobaugh’s Dahlias
https://lobaughsdahlias.com/product-category/dahlia/
Stone House Dahlias
https://stonehousedahlias.com/shop/
Online seller of rooted dahlia cuttings.
Swan Island Dahlias