What is an heirloom seed?
An heirloom is generally a variety that has been grown and saved for many years, often passed down in a family or community. Most are open-pollinated, which means seed saved from them will usually grow plants like the parent when properly isolated from other varieties.
There is no single legal definition of the word. Different seed companies and growers use different age cutoffs, so ask how a seller defines it, and treat marketing claims with care.
Some families keep a single bean or tomato going for generations. If you have inherited such seed, label it with the name of the person who grew it and when, so the story stays attached to the seed.
Why do people grow them?
People grow heirlooms for flavor, color, history and independence. Some varieties were developed for local climates, soils and uses, and a few have stories that connect to a particular family or region. Others are simply fun.
Heirlooms are not always easy. Some yield less, ripen unevenly or lack the disease resistance of newer varieties. Try a few alongside reliable ones and see what suits your site.
- Flavor and variety
- Connection to family or regional history
- Ability to save seed from open-pollinated types
- Some adaptation to local conditions
How do you choose varieties for your place?
Your climate, soil, growing season and pests matter more than a catalog description. Ask neighbors, gardeners at seed swaps and your county extension office which varieties thrive locally.
Look for varieties that have been grown near you for years. Those adapted to your conditions often outperform exotic ones. Land-grant universities and extension programs publish variety trials for many regions.
Keep a simple garden notebook with planting dates, weather, yields and problems. After a few seasons, patterns appear that no catalog can tell you.
How do you save seed?
Seed saving works best with plants that self-pollinate, such as many beans, peas and tomatoes. Cross-pollinated crops, such as squash and corn, need distance or barriers to stay true. Always choose healthy plants, let seed mature fully, dry it well and store it cool, dark and dry.
Label every packet with variety, year and any notes. The National Center for Home Food Preservation addresses preserving food, not seed, so consult your extension office or a seed-saving group for step-by-step instructions.
- Pick healthy, typical plants
- Keep varieties apart to avoid crossing
- Dry seed thoroughly
- Store cool, dry and labeled
What about disease and legal issues?
Seeds can carry diseases. Do not save seed from plants that showed serious disease, and rotate crops. If you receive seed from others, ask about its history and keep a small trial first.
Some varieties are protected by plant patents or contracts, and rules differ by variety and seller. Read the packet and the seller's terms, and ask your extension office or state department of agriculture if you have a question. This article is not legal advice.
Rotating crops and keeping tools clean also reduce disease risk, and extension offices publish plant disease guidance for your region.
Where can you find seed and knowledge?
Seed swaps, community seed libraries, extension master gardener programs and local garden clubs are good sources of both seed and advice. Ask what varieties are grown locally and how they do in different seasons.
Be cautious of unsolicited seed packages arriving in the mail. If you receive seed you did not order, do not plant it, and contact your state department of agriculture for instructions.
Check the rules before you mail seed to someone in another state, since some states restrict plant material. Your state department of agriculture can tell you what applies.
What are heritage crops beyond the garden?
Heritage crops include old grain, bean, corn and orchard varieties as well as regional specialties. Preserving them depends on people growing them every year.
If you want to try, start with a small plot and keep notes. SARE and extension programs publish general information on sustainable and diversified crops, and local growers often share advice freely.
If you grow something rare, share seed widely. A variety kept by many hands is far safer than one kept by only a few.
Key takeaways
- Heirloom means old and open-pollinated, but definitions vary, so ask sellers.
- Choose varieties that suit your local climate and soil, and try a few alongside reliable ones.
- Save seed from healthy plants, keep varieties separate and store it dry and labeled.
- Do not plant unsolicited seed, and ask your agriculture department what to do with it.
Sources and further reading
Last reviewed: November 12, 2026. Written by the Rural Farm Life Editorial Team. See our editorial policy.