A hand holding a large, golden-yellow Yellow Brandywine tomato in a garden setting.
Close-up of two thick, golden-yellow slices of a Yellow Brandywine tomato showing meaty flesh and seeds.
Two ripe Yellow Brandywine tomatoes with golden-orange skin resting on a rustic wooden surface.
Two thick, golden-yellow slices of Yellow Brandywine tomato resting on a dark, marbled surface.
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Yellow Brandywine - Organic Tomato Seeds

Open-Pollinated
Certified Organic
Heirloom
$4.95
Choose size

🌱 Sow with Confidence—One-Year Seed Guarantee

Yellow Brandywine is a golden heirloom tomato with large beefsteak fruits, potato-leaf foliage, and the slow, generous feel of an old garden favorite. The fruits ripen to warm yellow-gold, with meaty flesh and a rich, sweet flavor made for thick slices.

Grow it for summer sandwiches, tomato platters, salads, and the kind of harvest that asks for a knife and a little salt. Yellow Brandywine brings old tomato romance in a softer color—big fruit, broad leaves, and golden slices that fill the plate.

Scientific name: Solanum lycopersicum
Life cycle: Annual
Days to maturity: 76-100 from transplants days from transplant
Growth habit: Indeterminate

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Unopened items may be returned within 30 days. If something arrives damaged, incomplete, or incorrect, we’ll make it right.

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We stand behind every packet. Our seeds are untreated, germination-tested, true to variety, and covered for one year from purchase.

If seeds arrive damaged, fail to germinate under reasonable growing conditions, or do not grow true to type, contact us and we’ll make it right with a replacement, store credit, or refund.

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FAMILY OWNED

Hand packed in Pennsylvania by our family.

LAB TESTED

Third-party tested for reliable germination.

NON-GMO

Open-pollinated varieties for home gardens & seed saving.

UNTREATED SEED

Never coated with chemical seed treatments.

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Tomato Growing Basics

Tomatoes trace their ancestry to western South America and were further shaped through cultivation in Mesoamerica before traveling to Europe and, eventually, kitchens and gardens across the world. Generations of seed saving and selection produced everything from tiny cherry tomatoes to richly ribbed slicers and dense paste varieties.

Determinate varieties remain more compact and produce much of their harvest over a shorter period, while indeterminate plants continue growing, flowering, and setting fruit until frost. Start seeds indoors, transplant after the soil and nights have warmed, and provide full sun, steady moisture, and support.

Start tomato seeds indoors about 6–8 weeks before the expected last spring frost. Transplant outdoors after frost danger has passed, the soil has warmed, and nighttime temperatures are consistently above about 50°F.

Tomatoes grow best in warm weather. Cold nights can slow growth and flowering, while prolonged heat above about 85°F during the day and 70°F at night may reduce fruit set.

Sow seeds about ¼ inch deep in a moist seed-starting mix. Keep the mix warm and evenly moist until seedlings emerge. A heat mat can greatly improve germination speed and uniformity by maintaining the warm soil temperatures tomato seeds prefer, especially in a cool room.

Once seedlings emerge, provide strong light to encourage sturdy, compact growth. Pot seedlings into larger containers as they grow, then harden them off gradually for 7–10 days before planting outdoors.

Space plants about 18–24 inches apart for closely trained or compact varieties and 24–36 inches apart for larger, spreading plants, with enough room for airflow and harvesting.

Choose a site with at least 6–8 hours of direct sun and fertile, well-drained soil. Tomato stems can form roots along buried portions, so leggy transplants may be planted several inches deeper than they grew in their containers.

Install cages, stakes, or trellising at planting time. Water deeply at soil level and aim for consistent moisture, especially while plants are flowering and fruit is developing. Mulch helps conserve moisture, suppress weeds, and reduce soil from splashing onto lower leaves.

Harvest tomatoes when they have developed the mature color expected for the variety and feel firm with a slight amount of give. Fully colored fruit usually offers the richest flavor, though tomatoes beginning to change color can finish ripening indoors.

Pick regularly and handle ripe fruit gently. Before frost, gather mature green tomatoes and allow them to ripen indoors in a single layer away from direct sunlight. Do not refrigerate fresh tomatoes unless necessary, since cold temperatures can reduce flavor and texture.

Full Tomato Growing Guide