Local nurseries and garden centers are your fastest option

Your local garden center or independent nursery is the best place to start. They carry heirloom varieties suited to your climate, the plants are already hardened off (adjusted to outdoor conditions), and you can inspect them before buying. Staff can also tell you which varieties do well in your specific area and when to plant them.

Call ahead or visit in person during spring planting season—usually March through May, depending on where you live. Ask specifically for heirloom tomatoes; many nurseries stock them alongside hybrid varieties. If they don't have what you want in stock, they can often order it for you from their supplier.

Key Takeaways

  • Local nurseries let you see plants before buying and get information for your climate zone.
  • Online seed companies ship seedlings or seeds in spring, with hundreds of heirloom varieties to choose from.
  • Big-box garden centers carry some heirlooms but usually a smaller selection than specialty growers.
  • Farmers markets and plant swaps connect you with local growers who know which varieties thrive in your region.
  • Growing from seed costs less and gives you the widest choice, but requires starting indoors 6 to 8 weeks before your last frost date.

Online seed and plant companies with heirloom varieties

Specialty seed companies focus on heirloom and open-pollinated varieties. Seed Savers Exchange, Johnny's Selected Seeds, Baker Creek Heirloom Seeds, and Fedco Seeds all ship seedlings or seeds across the United States. Each company publishes a catalog (online or printed) describing flavor, size, days to maturity, and disease resistance for each variety.

Buying seedlings online means the plants arrive ready to transplant into your garden—usually in late April or May. Shipping costs more than seeds, and the plants are smaller than what you'd find at a local nursery, but the selection is far larger. If you buy seeds instead, you'll spend less money and can start them indoors under lights 6 to 8 weeks before your last spring frost.

Check the company's shipping map or zone information before ordering to make sure they deliver to your area and that timing works for your climate.

Big-box garden centers and home improvement stores

Stores like Home Depot, Lowe's, and Walmart carry tomato seedlings in spring, and some stock heirloom varieties alongside hybrids. Selection is usually limited to 5 to 10 varieties, often the same ones stocked nationwide rather than suited to your region. Prices are competitive, and plants are usually healthy, but staff knowledge about heirlooms varies widely.

Visit early in the season—by late May, the selection shrinks and remaining plants may be leggy or stressed. Read the plant label carefully to confirm you're buying an heirloom variety, not a hybrid marketed with an old-fashioned name.

Farmers markets and local plant swaps

Farmers markets in spring often feature local growers selling seedlings they've started themselves. These plants are acclimated to your region and the grower can tell you exactly how they perform locally. Plant swaps—community events where gardeners trade seeds and seedlings—are another source; check your city's parks department or local gardening groups on social media for dates.

Plants from these sources are usually cheaper than nursery prices and come with firsthand growing information. The catch is availability depends on what local growers decide to start that year, so selection is smaller and timing is fixed to the event date.

Growing heirloom tomatoes from seed

Buying seeds is the cheapest way to grow heirlooms and gives you access to hundreds of varieties. Start seeds indoors under grow lights or on a sunny windowsill 6 to 8 weeks before your last spring frost date. Transplant seedlings into larger pots as they grow, and move them outdoors to harden off for 7 to 10 days before planting in the garden.

Seed packets from the companies listed above cost $3 to $5 and contain 20 to 50 seeds—far more than you'll need for a home garden. Save unused seeds in a cool, dry place for next year. Heirloom seeds are open-pollinated, meaning you can also save seeds from your own plants at the end of the season and replant them the following year.

What to look for when buying heirloom seedlings

Choose plants that are stocky and green, with true leaves (the second set of leaves that look like tomato leaves, not the smooth seed leaves). Avoid plants that are tall and spindly, yellowing, or already flowering—they've been stressed and may not establish well in the garden. Roots should be white and visible at the drainage holes, but the plant shouldn't be so root-bound that roots circle the pot.

Check the label for the variety name, days to maturity, and whether it's determinate (bush) or indeterminate (vining). Ask the seller about disease resistance if you're in an area with common tomato problems like early blight or powdery mildew.

Timing your purchase for your climate

Tomatoes are warm-season plants and won't survive frost. Plant seedlings outdoors only after your last spring frost date has passed and soil temperature is at least 60°F. In the South, this may be February or March; in the North, it may be May or June. Search "last frost date [your city]" to find your date, then count backward 6 to 8 weeks to know when to start seeds indoors or buy seedlings.

Buying too early means keeping seedlings indoors or in a greenhouse longer, which costs money and space. Buying too late means missing the peak selection and getting stressed plants. Timing your purchase to your frost date ensures you get healthy plants when you're ready to plant them.

Frequently Asked Questions

Can I buy heirloom tomato plants in winter?

Most nurseries and online sellers don't ship seedlings in winter because they won't survive cold transit and you can't plant them outdoors. You can buy seeds in winter and start them indoors, or wait until late winter when nurseries begin stocking seedlings for spring planting.

What's the difference between heirloom seeds and heirloom seedlings?

Seeds are cheaper and give you more varieties to choose from, but require indoor space and lights to start. Seedlings are ready to plant outdoors when ready, cost more, and offer fewer varieties. Both produce the same tomatoes; the choice depends on your space, time, and budget.

Are heirloom tomato plants more expensive than hybrid plants?

Seedlings cost about the same whether heirloom or hybrid. Seeds are usually cheaper than seedlings, and heirloom seeds cost the same as hybrid seeds. The real savings come from growing from seed rather than buying seedlings, regardless of variety.

Do online plant companies may provide their seedlings will arrive healthy?

Most reputable companies replace plants that arrive dead or severely damaged. Check the company's shipping policy before ordering. Plants shipped long distances are smaller and more fragile than nursery plants, so expect some leaf damage and give them time to recover after planting.

Can I save seeds from heirloom tomatoes I grow?

Yes—heirloom tomatoes are open-pollinated, so seeds saved from your plants will grow into plants identical to the parent. Hybrid tomatoes won't breed true, so seeds from hybrids won't produce the same tomato. This is one reason heirlooms are popular with gardeners who want to save seeds year to year.