What you're growing
Low yield. Unmatched flavor.
Brandywine (Sudduth Strain) is one of the most celebrated heirloom tomatoes in existence. The Sudduth strain is the original pink beefsteak selection maintained by Dorris Sudduth Hill and is distinct from the red Brandywine and other strains. Expect massive, irregular fruit with rich, balanced, deeply sweet flavor — and accept that Brandywine is not a high-production tomato. Grow it for the taste, not the quantity.
The Fruit
Massive, irregular, unforgettable
Skin color
Pink to rose-red, few blemishes
Typical size
1–2 lbs, irregular beefsteak shape
Flavor
Rich, sweet, balanced, complex
Texture
Dense, low moisture, meaty
Yield
Moderate — fewer but larger fruit
Set expectations: Brandywine does not produce the volume of a modern hybrid. A typical plant in a good season might carry 8 to 15 fruits to maturity. The trade is yield for flavor — and most growers who have tasted a ripe Brandywine consider it an easy trade.
The Plant
Distinctive potato-leaf foliage
Leaf type
Potato-leaf (smooth, rounded lobes)
Type
Indeterminate
Height
6–9 feet in full season
Support
Heavy staking essential
Suckers
Prune to 1–2 main stems
Potato-leaf plants look different: if you've only grown standard-leaf tomatoes, Brandywine's smooth, rounded leaves may look wrong at first. This is correct — potato-leaf is a genetic trait of this variety, not a sign of disease or nutrient deficiency.
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When and how to start
Start early. Brandywine needs the full season.
At 80 to 90 days to maturity, Brandywine is one of the later tomatoes in common cultivation. In zones 5 and shorter-season northern climates, starting seeds 8 weeks before your last frost date — rather than the standard 6 — gives plants the extra lead time they need to reach full production before the first fall frost.
Starting Indoors
Start a week or two earlier than usual
Start date
7–8 weeks before last frost
Sow depth
¼ inch
Soil temp
75–85°F — use a heat mat
Germination
5–10 days at optimal temp
Light after sprouting
16 hrs/day under lights or brightest window
Pot up aggressively: Brandywine grows into a large plant. Move seedlings into progressively larger pots (4" → 1 gal → garden) rather than letting them sit root-bound. A root-bound Brandywine in late spring never fully recovers its potential.
Transplanting Out
Warm soil, no cold nights
Transplant date
After last frost, soil 60°F+
Night temps
Consistently above 50°F
Spacing
30–36 inches — Brandywine needs room
Planting depth
Bury stem to lowest leaves
Support
Install stake or cage at planting
Cold nights stall fruit set: Brandywine will not set fruit well when night temperatures drop below 55°F. If you transplant early and get a cold snap, the plant will stall. Patience — it will resume when nights warm up.
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Through the season
Prune hard. Support early. Water consistently.
Brandywine is a vigorous, sprawling plant that rewards discipline. Keep it to one or two main stems, provide serious support before the plant gets heavy, and water deeply and consistently. The most common mistake is letting Brandywine sprawl — it still produces, but fruit size and flavor suffer.
1
Train to one or two main stems
Brandywine produces large, heavy fruit — pruning to a single stem concentrates energy into the biggest, best-flavored tomatoes. Two stems is a reasonable compromise between yield and fruit size. Remove all suckers below the first flower cluster regularly, every 5 to 7 days during active growth.
Single-stem Brandywine produces fewer but notably larger and richer-flavored fruit
2
Provide serious staking
Brandywine will reach 6 to 9 feet. A 6-foot stake driven 18 inches into the ground, or a heavy-gauge cage, is the minimum. Tie the main stem loosely every 12 inches as it grows. Unsupported Brandywine breaks at fruit-set — the weight of even a few large fruits is enough to snap an unsupported branch.
Tie stems before they reach the top of your support — not after they've already flopped
3
Water deeply and consistently
Inconsistent watering — particularly going dry then getting a heavy rain or irrigation — causes cracking in large-fruited varieties. Brandywine's thin skin is particularly susceptible. Water deeply once or twice a week, maintain mulch to buffer moisture, and avoid overhead watering once fruit is sizing up.
4
Be patient with fruit set
Brandywine is notoriously slow to set its first fruit, particularly in variable spring weather. Plants may look large and healthy but show few flowers before midsummer — this is normal. Once daytime temperatures stabilize above 65°F and nights are consistently above 55°F, fruit set accelerates. Do not over-fertilize trying to hurry it along.
The wait is worth it — Brandywine's late-season fruit is consistently the most flavorful
5
Top plants in late summer
About 4 to 5 weeks before your expected first frost, pinch the growing tip of each main stem. This tells the plant to ripen what's already on the vine rather than continuing to set new fruit that won't have time to mature. This step is especially important for Brandywine's 80 to 90 day maturity in shorter-season climates.
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What you're waiting for
Pick at fully pink, slightly soft.
Brandywine is ready when the skin transitions from a slightly matte pink to a deeper rose-pink with a slight sheen, and the blossom end gives softly to thumb pressure. The flavor improves noticeably in the 24 to 48 hours after picking, as the sugars continue to develop at room temperature.
Harvest right
- Pick when skin is fully pink-rose and the blossom end gives gently to thumb pressure
- Ripe fruit twists free from the vine easily — resistance means it needs more time
- Ripen at room temperature, stem-end down, away from direct sun — never refrigerate
- Peak flavor is 1 to 2 days after picking; serve at room temperature for best taste
- Fruit showing cracks at the shoulder is still fine to eat — harvest these immediately before they split further
Save seed
- Select seed from the most flavorful fruit on your most productive plant
- Let fruit ripen past eating-ripe — another week on the vine or counter is ideal
- Ferment seeds in water for 2–3 days; good seeds sink, non-viable ones float
- Rinse thoroughly and dry on a non-porous surface (ceramic plate) for 2 weeks minimum
- Store in a paper envelope in a cool, dry location — viable 4 to 6 years
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From our field
Notes on this lot.
Lot 2026-BW-022 was grown in the south tomato beds at our farm in Nampa, Idaho.
Grower note • Lot 2026-BW-022
This is the Sudduth strain maintained by our farm since 2022. We grow Brandywine on single stems tied to 7-foot wooden stakes and pull suckers weekly. Fruit set this season was later than usual — a cool June pushed first ripe fruit to mid-August — but the extra warmth in September produced some of the largest and most flavorful fruit we've grown. Seed was selected from three plants that consistently produced the largest, best-tasting fruit and were among the last to show any stress in the summer heat. Germination tested at 89%.