77 Heirloom Seed Companies To Grow Your Own Non-GMO Garden

Organic, non-gmo, heirloom vegetables can make it to your plate more often when you take the plunge and decide to grow your own food. Even starting small with some of the easiest plants to grow can greatly reduce your food budget – without losing out on the health benefits you want. Growing your own vegetables from heirloom seeds can also change the way you see your food, and the land it comes from.

Author, professor and scientist, Robin Wall Kimmerer, promotes gardening as an act of reconnecting to the land that so many of us are separated from. She writes that, “Knowing that you love the earth changes you, activates you to defend and protect and celebrate. But when you feel that the earth loves you in return, that feeling transforms the relationship from a one-way street into a sacred bond.”

No matter where you live, or how disconnected you feel from land or the food you eat, there are many options for setting up a garden to suit your circumstances. Whether you are rural, urban, or trying to make space for an apartment friendly plot, it is important to begin small and grow what you want! If you choose your favorite plants first, you’ll be more dedicated to watching them grow.

Heirloom seeds show how plants give back for what you give them, as they produce tastier, brightly coloured vegetables with higher nutrition than genetically modified foods. Studies show that protein content, healthy oils, amino acids, as well as important mineral and calcium levels have all dropped in mainstream foods since the introduction of genetic modification – some as much as 50 percent.

If you are going to put in the effort to connect to your food and increase your say on how and what you eat, you might as well choose from the diverse array of heirloom seeds available, that are actually often less expensive as well!

Check out this video for some beginner tips to give your heirloom seeds the best possible start!

Now, here is the phone book you’ll need to order from 77 different heirloom seed companies around the world (check out the complete list here).

Heirloom Seed Companies

United States

Foundroot Alaska, USA.
Foundroot sells 100% open-pollinated seeds. They specialize in rare heirloom and expertly bred seeds for challenging climates.
Contact: 907-414-3077 and Email: [email protected]

Terroir Seeds LLC. Home of Underwood Gardens Arizona, USA.
A family owned independent heirloom seed company that offers the finest untreated, non-GMO heirloom vegetable, herbs and flowers seeds for home gardeners and small growers.
Contact: Phone/Fax 888-878-5247

Native Seeds / SEARCH shop Arizona, USA.
They are a non-profit conservation organization based in Tucson, Arizona. Since 1983, they have become a major regional seed bank and a leader in the heirloom seed movement.
Contact: 520-622-0830 and Email: [email protected]

The Natural Gardening Company California, USA.
They offer organically produced seeds and plants that promote the long-term health and preservations of our natural resources.
Contact: 707-766-9303 and Email: [email protected]

Mountain Valley Growers California, USA.
It is a USDA Certified organic company that offers organic herbs and vegetable plants.
Contact: 559-338-2775

Laurel’s Heirloom Tomato Plants California, USA.
They offer 100 luscious varieties of strictly organically grown heirloom tomato plants.
Contact: 310 534 8611

Renee’s Garden California, USA.
The owner, Renee Shepherd, offers heirloom certified organic seeds.
Contact: Phone: 1-888-880-7228 and Email: [email protected]

The Kusa Seed Society California, USA.
Their mission is to increase humanity’s knowledge and understanding about seed crops.
Contact them via Email: [email protected]

Petaluma Seed Bank California, USA.
Housed in and old bank building, this seed bank offers only pure, natural and non-GMO seeds!
Phone: (707) 773-1336 Email: [email protected]

My Heirloom Seeds California, USA.
They sell a “survival kit” with a large number of heirloom seeds. “We carry 100% non-GMO Heirloom seeds, that are not genetically modified, nonhybrid and open pollinated.” They have signed the safe seed pledge.
Contact: (310) 773-5936

Bountiful Gardens California, USA.
They sell untreated, open-pollinated, non-GMO seed of heirloom quality for vegetables, herbs, flowers, grains, green manures, compost and carbon crops.
Contact: (707) 459-6410 and Email: [email protected]

GrowOrganic.com California, USA.
They offer all organic and non-GMO seeds. They also have organic fertilizer, organic weed and pest control.
Contact: 530-272-4769 and Email: [email protected]

Kitazawa Seed Co. California, USA.
They are the oldest seed company in America specializing in Asian seeds. All of their seeds are non-GMO and many open pollinated varieties.
Contact: (510) 595-1188 and Email: [email protected]

Diaspora Seeds California, USA.
A small family-run seed business in rural Anderson Valley. Many of the seeds they offer are heirloom seeds; resilient, productive and delicious offerings from many different cultures; geographies and time.
You can contact them through their online form.

Farm Direct Organic Seed (Hobbs Family Farm) Colorado, USA.
They grow certified organic garlic, open-pollinated seeds, fresh vegetables and much more.
Contact: 719-250-9835 and Email: [email protected]

Botanical Interests Colorado, USA.
All of their seeds are GMO-Free, and they do not buy or sell genetically engineered seeds or plants. Over 500 varieties to choose from.
Contact: 877-821-4340

BBB Seed Colorado, USA.
A small, family owned company committed to providing safe, healthy, untreated, non-genetically engineered heirloom vegetable seed to its customers and promoting safe and sustainable agriculture. See their line of open-pollinated heirloom vegetable seeds and organic heirloom vegetable seeds, as well as a wide variety of wildflower & grass mixes.
Contact: 303-530-1222

Select Seeds Connecticut, USA.
They offer a wide range of unique, high- quality flower seeds and plants.
Contact: 1-800-684-0395

New England Seed Company Connecticut, USA.
The company offers chemical-free seed products, they sell vegetable, flower, herb and organic bulk seed.
Contact: 800-825-5477 and Email: [email protected]

Mary’s Heirloom Seeds Florida, USA.
Mary’s currently offers over 400 varieties of Heirloom, open-pollinated, non-GMO and non-hybrid, non-patented, untreated and organic seeds. Mary has signed the Safe Seed pledge. Most seed orders placed Monday-Thursday are shipped within 48 hours, (except for holidays)
Contact: (760)-870-4555 and Email: [email protected]

Crispy Farms Florida, USA.
They sell homegrown meat, dairy produce, pantry items and non-GMO plants and seeds.
Contact them through the online form on their website or Email: [email protected]

Eden Organic Nursery Service Inc. Florida, USA.
They offer organic and hybrid seeds for vegetables, tobacco seeds, medical and healing plants and many more.
Contact:(954) 382-8281

Grower Jim’s Plants and Produce Florida, USA.
They are a small sustainable farm selling fresh produce, plants and seeds. Their seeds are hand-picked, open-pollinated, non-hybrid, non-GM, and heirloom types grown chemical-free in a natural environment. Their selection includes both edible and ornamental varieties of trees, shrubs and herbaceous plants.
Contact them through their website or Facebook page.

NON-GMO Hawaii Heirloom Seeds  Honolulu, Hawaii.
A newly established heirloom and non-GMO seed retailer that offers different variety of fruit and vegetable seeds.
Contact: 808-941-0093

Camp Point Seed Co. Illinois, USA.
They are selling non-GMO seed corn, non-GMO soybeans and many more.
Contact: 217-593-7333 and Email: [email protected]

American Organic Illinois, USA.
Their products meet all USDA National Organic Program requirements. This seed was not produced from genetically modified varieties and was carefully grown.
Contact: 815-745-1018 and Email: [email protected]

Great Harvest Organics Indiana, USA.
They are selling organic corn, wheat and soybean seeds.
Contact: 317-984-2364 and Email: [email protected]

Blue River Hybrids Iowa, USA.
It is an independently owned and operated by dedicated people who want to provide you the highest quality organic seed corns, organic soybeans and organic forages.
Contact: 800-370-7979

Seed Savers Exchange  Iowa, USA.
Registered and non-profit organization dedicated to saving heirloom seeds. They have an online catalog.
Contact: (563) 382-5990 and Fax: (563) 382-6511

Skyfire Garden Seeds  Kansas, USA.
They sell over 125 varieties of heirloom tomatoes; rare eggplants. heirloom peppers and more. All of these seeds are open-pollinated, non-GMO and no-treated seeds.
Order through their online form.

Sustainable Mountain Agriculture Center Inc. Kentucky, USA.
The major goal of this Center is to demonstrate to the people that farmers do have viable options to off-farm jobs. They assist in identifying, collection and sustaining family and community of heirloom seeds and plants.
Contact: (859) 986-3204

Wood Prairie Farm Maine, USA.
They are a small Certified Organic family farm in the State of Maine. They offer organic potato seeds, orgnaic fertilizer and much more.
Contact: 1-800-829-9765 and Email: [email protected]

FEDCO Maine, USA.
They offer seeds, organically grown seedlings, seed potatoes, orchard and also farm and garden supplies.
Contact: (207) 426-9900

Pinetree Garden Seeds & Accessories Maine, USA.
They offer the best prices for thier high quality seeds, books, tools and soap making.
Contact: 207-926-3400 and Email: [email protected]

Johnny’s Selected Seeds Maine, USA.
It is an employee-owned company since July 2006. They offers heirlooms, organics and hybrids seeds.
Contact: 207-861-3900

GROUNDSWELL SEED FARM Maine, USA.
This is farm-based seed supplier that sells only certified organic, hand-harvested open-pollinated and heirloom seeds that are grown on their farm.

Annie’s Heirloom Seeds Michigan, USA.
They offer a wide range of vegetable seeds like broccoli, beans, asparagus and many more. They also have gardening supplies and book for beginners. This is a one stop shop for your garden needs.
Contact: 800-313-9140

Todd’s Seeds Michigan, USA.
They specialize in organic, heirloom, non-GMO and open pollinated vegetable, flower and sprouting seeds.
Contact them through the online form on their website.

Organic Heirloom Plants Michigan, USA.
They raise their own organic plants and heirloom plants that are 100% free of chemical and pesticides.

Orchard House Heirloom Michigan, USA.
Orchard House Heirlooms is dedicated to bring to market the most sustainable vegetable and herb seeds on the planet, heirlooms. All of their seeds are heirloom or organic heirloom and do not sell hybrid or GMO seeds.
Contact: 269-782-7000

Albert Lea Seed Minnesota, USA.
They are Certified Organic Processors, meeting the National Organic Program standards for processing organically-raised grains, soybeans and other field crops.
Contact: (800) 352-5247

Grannys Heirloom Seeds Missouri, USA.
They offer non-hybrid heirloom seeds, heirloom herb seeds and garden tools.
Contact: 1-800-274-3899

Pantry Garden Herbs Missouri, USA.
They offer a lot of different organic vegetable and organic herb plants. They are USDA certified.
Contact: (877) 572-4142 and Email: [email protected]

Baker Creek Heirloom Seeds Missouri, USA.
The company has grown to offer 1450 varieties of vegetables, flowers and herbs. The largest selection of heirloom varieties in the U.S.A. All of their seeds are non-hybrid, non-GMO, non-treated and non-patented.
Contact: (417) 924-8917 and Email: [email protected]

Gourmet Seed New Mexico, USA.
They are selling a wide range of organic vegetable seeds, flower seeds, herb seeds, tools and supplies.
Contact: 575-398-6111

Fruition Seeds, New York, ISA
They cultivate over 300 varieties of certified organic vegetables, herbs, and flowers.
Contact: (585)-374-8903

Lakeview Organic Grain, LLC New York, USA.
They have organic seeds, animal feed and organic feed grain.
Contact: 315-531-1038 and Email: [email protected]

Harris Seeds New York, USA.
They support the success of organic growers by offering high quality organic and untreated seeds, organic plants, and OMRI listed supplies for organic growing.
Contact: (800) 544-7938

Hudson Valley Seed Library New York, USA.
They only offer heirloom and open-pollinated seeds. No hybrids and nothing genetically engineered.
Contact: 845-204-8769 and Email: [email protected]

Blaine’s Best Seeds North Dakota, USA.
They sell organic soybeans, pinto, oats, green peas and many more.
Contact: 701-776-6023 and Email: [email protected]

Livingston Seed Ohio, USA.
Livingston Seed is a wholesale company, selling only to the trade. Have signed the Safe Seed Pledge and are proudly GMO-free.
Phone: 800.848.2970 Email: [email protected]

Dust Bowl Seed Oklahama, USA.
They sell 100% pure and natural and 100% GMO-FREE seeds of garlic, onions, beans and many more. You can also check their products online.
Contact: 918-207-6053 and Email: [email protected]

Family Farmers Seed Cooperative Oregon, USA.
A farmer-owned cooperative that produces high quality, organic, open-pollinated, public domain seeds for farmers.
Contact: 541-233-4249 and Email: [email protected]

Territorial Seed Company Oregon, USA.
They offer a wide range of organic seeds of vegetables, flowers, fruits, herbs and much more.
Contact: 541-942-0510 and Email: [email protected]

Victory Seeds Oregon, USA.
They are a small family owned and operated organization that works to preserve plant varieties by locating, growing, documenting and offering heirloom and rare open-pollinated seeds to home gardeners.
Contact: Fax: (503) 829-3126 and Email: [email protected]

Adaptive Seeds Oregon, USA.
Their seeds are not hyrbids, patented, or genetically modified. They have a wide range of vegetable seeds to choose from.
Contact: (541) 367-1105 and Email: [email protected]

All Good Things Organic Seeds Oregon, USA.
As you can see on their company name, all of the seeds that they are selling are organic quality vegetable and herbs.
Contact: 805-758-3184 and Email: [email protected]

Daggawalla Seeds and Herbs Oregon, USA.
All of their seeds are open-pollinated and non-GMO that are organically-grown by the owners. They offer a wide range of medicinal and culinary herbs, heirloom vegetables, staple crops, flowers and many more. Their seed collection ranges from common to the rare, from the native to the cosmopolitan, and from the fussy to the facile.
Contact: 503-686-5557 or Email: [email protected]

Umpquatopia Oregon, USA.
Located in Southern Oregon’s Umpqua (Ump-kwah) Valley that offers varieties of heirloom vegetables, herbs, companion plants and native plant seeds all grow without the use of synthetics with permaculture methods.
Email: [email protected]

Amishland Heirloom Seeds Pennsylvania, USA.
Lisa is selling heirloom heritage, exotic and foreign organically raised seeds.
Contact: [email protected]

Heirloom Seeds Pennsylvania, USA.
All their seeds are open pollinated (non-hybrid), un-treated and non-GMO.
Contact: (724) 663-5356

The Cook’s Garden Pennsylvania, USA.
It’s the best sources for organic seeds and supplies, European and American heirloom and specialty varieties.
Contact: 1-800-457-9703

The Ark Institute Pennsylvania, USA.
They offer 100% non-hybrid, non-GMO and chemical free produce seeds.
Contact: (800) 255-1912 and Email: [email protected]

Burpee Philadelphia, USA.
Seeds are never chemically treated, and are GMO free. Some heirloom varieties.
Contact: (800) 888-1447

Marianna’s Heirloom Seeds Tennessee, USA.
They only use a natural growing method so all of their seeds are un-treated, non-GMO or hybrid.
Contact: Fax: 615-807-3088

Hope Seed Company Tennessee, USA.
They specialize in open-pollinated and heirloom vegetable seed varieties that are rare and not readily commercially available.
Contact: Email: [email protected]

Center Of The Webb Texas, USA.
They specialize in rare seeds – they have flower and heirloom and organic seeds and some really unusual “weird and wonderful” vegetable and fruit seeds too.
Email: [email protected]

Diane’s Flower Seeds Utah, USA.
They sell open-pollinated and heirloom flower seeds, like rare perennials. They also sell heirloom tomato seeds and vegetable and herbs seeds.
Email: [email protected]

High Mowing Organic Seeds Vermont, USA.
Founded in 1996. They are selling 100% organic vegetable seeds, herb seeds and flower seeds
Contact: 802-472-6174

Southern Exposure Seed Exchange Virginia, USA.
They offer many unusual, Southern heirlooms, including peanuts, southern peas, naturally colored cotton and much more.
Contact: 540-894-9480 and Fax: 540-894-9481

Epic Gardens Virginia, USA.
They sell edamame seeds, classically bred, organically grown.
Contact: 804-617-6312 and Email: [email protected]

Backyard Beans & Grain Projects Washington, USA.
They produce a large variety of vegetables, berries, peas and many more. All of their seeds are open-pollinated, non-GMO and non-hybrid.
Contact: (360) 224-4757

Filaree Garlic Farm Washington, USA.
They sell organic garlic seeds and newly added organic potatoes. They are certified annually by the Washington State Department and the USDA.
Contact: (509) 422-6940

Seeds For Generations USA.
A family business selling organic heirloom vegetable seeds and related gardening products.
Contact them through their website.

SeedsNow.com USA.
An online shop that sells 100% NON-GMO, non-hybrid and heirloom Herb, Fruits and Vegetable Seeds.
Contact: 1-877-344-4669 and Email: [email protected]

Indoor Harvest Gardens USA
Committed to preserving heirloom varieties and safe, organic, non-GMO seed. Practicing sustainable, earth-friendly, bio-dynamic farming methods.
See website for ordering

Knapp’s Fresh Vegies USA.
Currently listing about 450 varieties of mostly heirloom tomatoes.
Contact: [email protected]

UK/Ireland

The Real Seed Catalogue UK.
They only offer what they know that is really good. If you’re a first time gardener, you can order a book together with the seeds that you like.
Contact: 01239 821107 and Email: [email protected]/

Mr Middleton Garden Shop Dublin, Ireland.
Ireland’s oldest mail order garden retailer, they sell 2,000 varieties of flowers bulbs from around the world as well as garden tools.
Contact: 01 8731118

Fruit Hill Farm Country Cork, Ireland.
One stop shop for your garden needs. They only sell organic seeds of vegetables, potatoes, garlic, onion and even organic fertilizer.
Contact: 027 50710 and Email: [email protected]

The Organic Centre Leitrim, Ireland.
They have almost 200 items in their seed catalog. They also offer seed saving workshops for those beginners. You can visit their website for the workshop lists.
Contact: 353-71-98-54338 and Email: [email protected]

Western Seeds Pembrokeshire, UK.
They sell organic seeds with the highest possible quality seed at the most competitive price.
Contact: 01834 861904 and Email: [email protected]

M.G. Seed Co. Rathoath, Meath, Ireland.
They sell organically produced vegetables seeds.
Contact: 01 8256593 and mobile: 087 2623133

Callinafercy Organics County Kerry, Ireland.
They offer organic vegetable seeds, potatoes, onions and garlic.
Contact: 066 9762447 and Email: [email protected]

Irish Potato Marketing Ltd. Co Dublin, Ireland.
They sell conventional and organic seed potatoes.
Contact: 01 282 7600 and Email: [email protected]

Irish Seed Savers’ Association Country Clare, Ireland.
It is an Irish non-government organisation founded in 1991 by Anita Hayes. They maintain a seed bank with over 600 non-commercially available varieties of seeds.
Contact: +353 61 921866 and Email: [email protected]

Europrise Dublin, Ireland.
It is part of the Bejo Zaden vegetable seed company of Holland. They produce and sell over 140 varieties in 40 species of organic seeds.
Contact: (01) 843 8711 and Email: [email protected]

Organic Gardening Catalogue London, UK.
They have over 500 organic seed varieties, herbs, flowers and green manures, organic compost and fertilizers.
Contact: +44 1932 253666 and Email: [email protected]

Peppermint Farm & Garden West Cork, Ireland.
They sell more than 300 varieties of organic herbs – culinary herbs, medicinal herbs, fragrant herbs. They also have vegetable plants and organic herbal teas that you will love.
Contact: 00353-28-31949 and Email: [email protected]

Europe (except UK & Ireland)

Arche Noah Austria.
They offer over 600 species of rare vegetables, field crops, fruits, herbs, wild and ornamental plants.
Contact: 907 994 719

Vitalis Biologische Zanden B.V.
They offer a wide range of organic vegetable seeds in Europe.
Contact: +31 (0)575 502 648 and Email: [email protected]

Impecta Frö Handel Julita, Sweden.
They sell organically grown seeds for health and the environment.
Contact: +46 (0) 150-923 31 and Email: [email protected]

Runåbergs fröer Spekeröd, Sweden.
They offer organically (and ecologically) grown seeds and also sell their products in other Scandinavian Countries.
Contact: +46 (0)303-777140

Lindbloms Frö Kivik, Sweden.
They are well-known in Scandinavia for organic and untreated seeds from small scale commercial farming.
Phone: +46-414 708 80, Fax: +46-414 700 09 and Email: [email protected]

Rara Växter Stockholm, Sweden.
A small family business that was founded in 1987. They sell rare plants, cut the middleman and bought directly from growers to ensure top quality. Organic to the largest extent possible, though they have some non-organic seeds too.
Contact: 08-714 85 75 and Email: [email protected]

Fobo – Organic Garden Bredaryd, Sweden.
They sell 100% all organic, which is called “ecological” in Sweden.
Contact: 0722-098608 and Email: [email protected]

Franchi frö Sweden
Seed company since 1783 specialized in organic, heirloom seed.
Email: [email protected]

Pratensis AB Lönashult, Sweden.
Specialize in wildflower meadows, with a strong emphasis on preserving endangered species.
Contact: 0470-75 10 25 and Email:[email protected]

Dreschflegel Witzenhausen, Germany.
Consist of 3 branches: 1) Flail GbR – union controlled organic farms for seed propagation, plant breeding and marketing online. 2) Profit association name Flail with socio-politically active people with ecological interest. 3) The show garden “Schoenhagen” with countless varieties grown from the Flail range.
Contact: 05542-502744 and Email: [email protected]

Ökologische Saaten Bingen, Germany.
Selling organic seeds in Germany and the United Kingdom. Check their website for product list.
Contact: +49 (0) 6035 1899-0 Fax: +49 (0) 6035 1899-40 Email: [email protected]

Canada

Two Wings Farm British Columbia, Canada.
Located in Victoria, BC. They sell heirloom tomatoes, lettuces, peppers and many more. They also have a planting instructions for beginners.
Contact: 250-478-3794 and Email: [email protected]

Heritage Harvest Seed Manitoba, Canada.
A mail order business specializing in rare and endangered heirloom varieties of vegetables, flowers and herbs.
Contact: (204)745-6489 and Email: [email protected]

Richters Herbs Ontario, Canada.
Herb specialist since 1969. Have signed the Safe Seed Pledge for GMO-free seeds.
Contact: 1-905-640-6677

The Mushroom Man Vancouver, Canada.
Organic mushroom specialist, “sells mushroom growing kits, mushroom spawn and cultures, mushroom cultivation supplies and conducts mushroom growing workshops”.
Email: [email protected] Phone: 1.905.640.6677

Seeds of Victoria British Columbia, Canada.
They offer a wide range of organic seeds of vegetables and also flowers. They also offer lectures and workshops.
Contact: (250) 881-1555 and Email: [email protected]

Hawthorn Farm Organic Seeds Ontario, Canada.
Certified organic seed for home and market gardeners. Vegetables, herbs, flowers – top quality and germination tested seed. Almost all of the seed is grown at Hawthorn Farm.
Email: [email protected]

Cubit’s Ontario, Canada.
Cubit’s sells ethical seeds for edible gardens with a specific interest in helping home gardeners grow their own food.
Contact: 416-879-1985 and Email: [email protected]

Salt Spring Seeds British Columbia, Canada.
They promote safe and sustainable, local agriculture in Canada.
Contact: Email: [email protected]

The Cottage Gardener Ontario, Canada.
They have been providing rare and endangered heirloom varieties of vegetables, herbs, and flowers. Their online catalog has over 650 heirloom seeds.
Contact: Email: [email protected] and phone: 905-786-2388

William Dam Seeds Ontario, Canada.
They offer untreated and non-GMO seeds. They also sell vegetable plants in the spring. You can check their online catalog for the list of their seeds and plants.
Contact: 1-905-628-6641 and Email: [email protected]

Prairie Garden Seeds Saskatchewan, Canada.
They offer a wide range of organic seeds of vegetables and also flowers.
Contact: Jim Ternier, (306) 682-1475 and Email: [email protected]

Strathcona 1890 Vancouver, BC, Canada.
Non-GMO, open pollinated, non-chemically treated, heirloom seeds for sustainable food resources.
Phone: 1 (604) 253-8844 and Email: [email protected]

Solana Seeds Quebec, Canada.
A small seed company that offers a variety of vegetables, flowers and exotic plant seeds.
Order through their online form.

Mapple Farm Online NB, Canada.
A small seed company that offers non-GMO seeds and plants. Great online PDF catalog.
Email: [email protected]

Sugar Shacks Seeds British Columbia, Canada.
A lot of their seeds are heirloom, open-pollinated. You can rest assured that you will never receive any GMO or treated seeds.
Email: [email protected]

Eagleridge Seeds British Columbia, Canada.
They specialize in rare organic heirloom seeds since 1995 and completely non-GMO.
Contact: 250-537-5677 or through their online form.

Vesey Seeds Ltd. Prince Edward Island, Canada.
They sell certified organic vegetable and herb seeds as well as organic garlic and potato seed, heirloom varieties as well as hybrids. They sell seeds to all states and provinces in North America.
Contact: 1-800-363-7333 (toll-free) and Email: [email protected]

Rob’s Rare and Giant Seeds Canada.
Not every single thing they sell is heirloom/organic, but they are growing seeds for some very rare plants. They carry Zucca melon seeds, which nearly went extinct. They have some weird and wonderful stuff.

Australia and New Zealand

The Organic Seed Co.
Old traditional open pollinated seeds, no hybrids and no GMOs, no chemical treatment, certified organic.

Fair Dinkum Seeds
A huge and constantly changing selection of seeds, plants and even the odd herbs. Selling worldwide via the eBay store! Old style Heirlooms, Rare and interesting forms, Bushtucker species, and lots of stuff that’s just plain old cool! No GMO, or Dodgy hybrids that don’t breed true to form, or chemical toxins.

Green Harvest Organic Gardening Supplies Pty Ltd Maleny, QLD, Australia.
Organically certified seed supplier. Has heirloom and rare varieties and has signed the safe seed pledge.
Phone: 07 54352699

The Diggers Club Australia.
“Australia’s largest range of heirloom vegetables, cottage flowers and fruit plants that can be delivered directly to you. We have specialized in growing hard to find, non-mainstream seeds and plants for over 30 years. All our plants are trialed for hardiness, drought tolerance and flavor before we list them for sale.”
Phone: 03 5984 7900

Seeds2Freedom Australia.
Seeds2freedom sells Organic, Heirloom and Open Pollinated seeds. Great selection and online ordering.

The Italian Gardener Australia.
Distributor of Italian vegetable and herb seed from Franchi Sementi SpA of Bergamo, in Northern Italy. They have an organic seed section (linked).
Phone: 0407 833 930 and Email: [email protected]

Jankala Organic Seed Middleton, SA, Australia.
Online provider of quality organic seed. Providing organic and heirloom seed varieties of fruit, vegetables, herbs and flowers.

The Seed Collection Australia.
An online-only business. Seeds are all non-hybrid varieties with no chemical treatment and no genetic engineering.
Phone: (03) 8719 0440 and Email: [email protected]

Eden Seeds Lower Beechmont, Australia.
Old traditional open-pollinated varieties of vegetable seed, preferably old Australian varieties and organically or bio-dynamically grown where possible. No chemical treatment, and no genetic engineering.
Phone: (07) 5533 1107

Select Organic Middleton, Australia.
They sell organic seed, non-hybrid seed, open pollinated seed and heirloom seed.
Phone: (07) 5533 1177

Seed Savers network Byron Bay, Australia.
Join a network of local seed savers!

Heirloom Harvest South Australia.
Your source for traditional, heirloom, open-pollinated and organic vegetable seeds for your home garden.
Contact them through their online form.

Koanga Institute New Zealand.
The Koanga Institute is a nationally recognized seed saving, permaculture research and sustainable education organization dedicated to the protection, conservation, and development of NZ’s heritage food plants.
They have an online shop and seed catalog.

References
http://hortsci.ashspublications.org/content/44/1/15.full
http://www.healthy-holistic-living.com/amazing-list-131-heirloom-seed-companies-region.html
https://www.health.harvard.edu/blog/backyard-gardening-grow-your-own-food-improve-your-health-201206294984
http://youngurbanfarmers.com/edible-gardens/residential-gardens/condo-and-apartment-gardens/
https://milkweed.org/book/braiding-sweetgrass
https://www.motherearthnews.com/organic-gardening/vegetables/heirloom-vegetable-advantages
https://www.motherearthnews.com/nature-and-environment/nutritional-content-zmaz09jjzraw