Mary Robinson’s German Bicolor Tomato Review & Photos

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🍅 Quick take: Mary Robinson’s German Bicolor is a tall, indeterminate heirloom that produces absolutely massive yellow-and-red marbled beefsteaks. Known for frequently throwing fruits in the 1 to 2 lb (450-900 g) range, it requires heavy staking and patience, as it tends to focus on pushing out thick foliage early in the season before setting fruit. While one grower found the flavor leaning a bit tart, the overwhelming consensus is that this is a top-tier, meaty, exceptionally sweet bicolor that consistently delivers heavy late-summer harvests. Full summary ↓

Growers’ Notes and Photos (USDA Zones 4-6 Experience)

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Sandr (Alexander) 🍅 Member (339 posts)

Grew this outside but planted it pretty late, so it’s hard for me to judge the overall yield potential. However, considering every cluster was holding 3 fruits weighing 10.5-17 oz (300-480 g) each, it definitely wants to be a heavy yielder. Flavor-wise, it was a bit on the tart side for a bicolor, but it definitely had that real tomato taste. Plus, it’s just gorgeous to look at.

Mary Robinson German bicolor slice
Yellow and red marbled tomato

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Ladoga (Anzhela) ⭐ Pro Grower (1,816 posts)

This variety completely won me over with its beauty, flavor, and honestly, a pretty solid yield despite the bad summer we had. Almost all the fruits were huge, and there was absolutely no catfacing (misshapen fruits). Very meaty, juicy, and incredibly delicious. They all ripened right on the vine for me. The vines get very tall; I pruned mine to two leaders. Definitely growing this again.

Perfect Mary Robinson bicolor

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Lana_s_Kavkaza (Svetlana) ⭐ Pro Grower (19,268 posts)
📍 Pyatigorsk, Russia (USDA Zone 6)

Really loved this variety. Super tasty, and there are almost no seeds inside. It started setting fruit in June—before that, it just focused on putting on a ton of vegetative growth and foliage. Right now (it’s September), the vines are still loaded with massive fruits.

Mary Robinson German heavy yield

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ilja (Ilya) ⭐ Pro Grower (758 posts)
📍 Moscow Region, Russia (USDA Zone 4)

In my greenhouse, Mary Robinson turned out to be a tall vine, hitting about 6.5 feet (2 meters). Very productive, mid-season ripening. The fruits were large, oblate, and yellow-orange with gorgeous pink marbling.

Ilya's Mary Robinson plant
Mary Robinson oblate bicolor
Sliced Mary Robinson German

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Svetikk (Svetlana) ⭐ Pro Grower (29,396 posts)
📍 Moscow Region, Russia (USDA Zone 4)

One of my absolute favorite bicolors, growing it for the second year in a row now. Huge yields, massive fruits (some hitting 2 lbs / 900 g!), ridiculously delicious, and just a stunningly beautiful tomato overall 🥰

Edited December 27, 2018 by Svetikk

2 lb Mary Robinson German beefsteak
Massive harvest of bicolors
Gorgeous pink and yellow marbled slice
Mary Robinson scale weight

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Lana_s_Kavkaza (Svetlana) ⭐ Pro Grower (19,268 posts)
📍 Pyatigorsk, Russia (USDA Zone 6)

So, so delicious!

Svetlana's Mary Robinson slice
Yellow beefsteak with pink blush

Full Summary: Plant Habit, Bicolor Beauty, and Huge Yields

  • 🌿 Plant & Foliage: Indeterminate vine. It is an aggressive, tall grower that easily reaches 6.5 feet (2 m) in a greenhouse. Growers note that early in the season, it tends to focus heavily on vegetative growth (putting out lots of thick foliage) before finally settling down to set fruit.
  • 🍅 Fruit & Shape: Massive, oblate (flat-round) beefsteaks. The skin is a glowing golden-yellow with heavy red/pink marbling that extends deeply into the core. Despite their huge size—routinely hitting 1 to 2 lbs (450-900 g)—they are surprisingly smooth and resistant to catfacing.
  • 📈 Yield & Health: Because it takes time to build its foliage, it often behaves as a mid-late to late-season variety. However, once it starts producing, it throws exceptionally heavy clusters that require serious truss support. It will keep producing late into the fall.
  • 👅 Taste: Exhibits a classic, rich, fruity bicolor flavor profile. The flesh is dense, meaty, and contains very few seeds. While one grower found it slightly tart, the vast majority rate it as incredibly sweet and top-tier for fresh slicing.

🍅 Have you grown Mary Robinson’s German Bicolor? Drop a comment below! Did your plant focus on growing a jungle of leaves before finally setting fruit, or did it produce early for you?
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