EM-Champion Siberian Oxheart Tomato Review

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Quick Summary of EM-Chempion (EM-Champion)

  • 🌍 Origin: A famous Russian commercial variety released by Sibirskiy Sad (Siberian Garden). The name translates to “EM-Champion”.
  • 🌿 Plant Habit: Determinate (bush), reaching about 60–70 cm (24–28 inches) outdoors. It has very sparse, thin, downward-hanging leaves (often described as “wispy” or “weeping willow” type). Because of this, it can be planted densely (about 30 cm / 12 inches apart).
  • 🍅 Fruit Characteristics: Red, medium-to-large heart-shaped (oxheart) tomatoes. Average weight is 150–300 g (5.3–10.5 oz), though some reach over 400 g. The flesh is dense and meaty.
  • 👅 Flavor & Texture: The skin is very thin and the fruits bruise easily, meaning it has a very poor shelf life and cannot be transported well. The taste is highly debated among growers—some find it delicious and perfectly balanced, while others find it bland. It is universally praised for making excellent tomato juice and sauce.
  • Yield & Care: Extremely high-yielding. The thin stems will absolutely collapse under the weight of the fruit if not heavily staked and supported. Can be grown without pruning (suckering), though some growers thin the trusses to get larger fruit.
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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

A large-fruited slicer variety for open ground, characterized by a very high yield.

Determinate, short, 60-70 cm (24-28 inches) tall, requires a little pruning (suckering) only at the beginning of planting in the ground. The fruits are heart-shaped, large, and meaty. The skin is medium-thick, closer to thin. The taste is a solid 4 out of 5! Very good for making tomato juice.

EM-Champion red oxheart tomato on vine
Sliced EM-Chempion showing meaty texture
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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

Continuation:

Large red heart shaped tomato
Huge EM-Champion tomato in hand
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Meri (Meri) ⭐ Pro Grower (3,474 posts)
📍 Western Siberia (USDA Zone 3)

Oh, what a beauty !!!!!!

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SVETLA (Svetlana) ⭐ Pro Grower (3,447 posts)
📍 Kemerovo Region (USDA Zone 3)

Yes, it’s a high-yielding variety, the whole plant is hung like lanterns. But it does not store at all, and during transportation, you practically can’t even touch it. It is very delicate and soft. It would be priceless if it had a better shelf life, but it is excellent for processing into juice or paste. 😋

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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

I agree that during the transportation of ripe EM-Champion fruits, they get bruised. Therefore, I never leave them to ripen completely on the bushes.

And I forgot to add for information — the bush has very sparse foliage, so you can plant them closer together, and don’t overdo it with pruning the leaves.

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Galya-64 (Galina) ⭐ Pro Grower (4,414 posts)

Elena, I support you in everything said above. You rightly noted, there are very few leaves, and the fruits are large. For some reason, their shape reminds me of the ‘Vova Putin’ variety 🙂

It’s short, about 60 cm (24 inches), but very productive.

Huge EM-Champion red tomatoes on scale

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varvarachel (El) 🌱 Beginner (20 posts)

And how does it handle frosts, or just a cold rainy summer and Late Blight?

P.S. I want to try this variety next season… 😳

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Elena35 (Elena) 🌱 Vegetable Grower (286 posts)

I can’t say about frosts, but even in such a bad summer, the variety was one of the best!

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Tatyana21 (Tatyana) 🌱 Beginner (82 posts)

In the photos the fruit is very large, I wonder how many grams it is, looks so appetizing.

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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

My fruits were from 150 to 300 grams (5.3 – 10.5 oz).

Regarding frosts – it’s like all regular varieties. As for Late Blight – I removed the bushes of this variety from the open ground last of all; the variety tried hard to fight off the blight. After all, the varieties from Sibirskiy Sad (Siberian Garden), it seems to me, are very low-maintenance and resilient 👍.

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AlexanderS (Alexander) ⭐ Pro Grower (9,879 posts)
📍 Yaroslavl Region (USDA Zone 4)

ElenaN wrote:
Continuation

Wow!!! What awesome ones! 🎉

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AlexanderS (Alexander) ⭐ Pro Grower (9,879 posts)
📍 Yaroslavl Region (USDA Zone 4)

ElenaN wrote:
The taste is a solid 4 out of 5!

Elena, and who, in your opinion, pulls a solid 5 out of 5 for taste?

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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

Alexander! After all, in the Tomato Varieties Catalog, it is not customary to go off-topic and talk about other varieties, unless it’s in comparison with a specific variety 😉.

But the most successful for me in terms of taste in 2013 were Sladkoye Chudo (Sweet Miracle), Australiets (Aussie), Dacosta Portuguese, Yellow Stone Bi-Color, and Medovyi Spas (Honey Salvation). But I haven’t found the absolute gold standard yet, so next year I’ll be looking for it among 150 new varieties! 😵

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Sweet (Svetlana) ⭐ Pro Grower (8,792 posts)
📍 Belgorod Region (USDA Zone 5)

I think it’s a very valid question, so an answer about other varieties is quite appropriate.

After all, to understand why you rate EM-Champion a 4, we need to know your taste preferences 📝

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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

Svetlana! I agree with you 🌺.

Alexander! Then please ignore the first paragraph of my message 😞!

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AlexanderS (Alexander) ⭐ Pro Grower (9,879 posts)
📍 Yaroslavl Region (USDA Zone 4)

ElenaN wrote:
Alexander! After all, in the Tomato Varieties Catalog, it is not customary to go off-topic…

Elena, forgive me generously! I am still inexperienced here with you guys 😉

ElenaN wrote:
But I haven’t found the absolute gold standard yet, so next year I’ll be looking for it among 150 new varieties!

Wow!!! 150 new varieties!!! That’s amazing! Thank you for sharing your preferences 😉

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o-lya-lya (Olga) ⭐ Pro Grower (9,962 posts)
📍 North-East Moscow Region (USDA Zone 4)

Elena, I want to ask you. Are 3 bushes of EM-Champion enough to plant outdoors for a trial?

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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

Olga! Of course, it’s enough! This year I grew exactly 3 bushes, although I planned to plant 10. Just plant them on the very edge; it seems to me they are more productive in full sun. I planted the bushes densely – 30 cm (12 inches) apart.

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AlexanderS (Alexander) ⭐ Pro Grower (9,879 posts)
📍 Yaroslavl Region (USDA Zone 4)

ElenaN wrote:
The distance between the rows is about 40 – 50 centimeters. The bush of EM-Champion is not wide at all, it has very few leaves… I think this trick (dense planting) won’t work with other tomato varieties, especially those with dense foliage.

Thank you, Elena! But to keep this in mind, you have to know every variety as well as you described EM-Champion 🌺

So I slowly started collecting information 😉

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yalena (Elena) ⭐ Pro Grower (773 posts)
📍 Bryansk Region (USDA Zone 5)

Elena. How long did EM-Champion yield for you? All at once, or over a long period?

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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma (USDA Zone 4)

Elena! In 2012 — out of ignorance, I pruned (suckered) EM-Champion. The fruits ripened all at once, among the very first compared to other varieties, and the bushes terminated (topped themselves) early.

In 2013, I didn’t remove the suckers, so EM fruited almost on par with indeterminates. The tomato is a flexible plant; I always try to turn a determinate into an indeterminate by letting it run on its suckers.

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Svetlyachok-plus (Svetlana) ⭐ Pro Grower (1,450 posts)

Once again, this variety confirmed its title – Champion. With minimal care, a mass of beautiful, meaty, and tasty fruits. But in my opinion, you really need to thin out the fruits in the truss. I don’t know if I have some wild line (up to 25 flowers in a tomato truss), or if the variety itself is just like that. Anyway, to get large fruits, you should leave 6-8 set fruits. Otherwise, I end up with a messy pile, and the last tomatoes are small, about 80 grams (2.8 oz).

Huge clusters of EM-Champion tomatoes on the vine
Massive harvest of EM-Champion
Red heart shaped EM-Champion tomato
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irunchik (irunchik) ⭐ Pro Grower (1,025 posts)

Taste is mediocre.

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Svetlyachok-plus (Svetlana) ⭐ Pro Grower (1,450 posts)

I like it, but regarding taste and color, as they say, to each their own 😄 😄 😄.

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tatyana _F (Tatyana) ⭐ Pro Grower (586 posts)

I also liked EM-Champion, but such yields like Svetlana has are something I can only dream of 👍 👍 👍

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Lana_s_Kavkaza (Svetlana) ⭐ Pro Grower (19,262 posts)
📍 Pyatigorsk (USDA Zone 6)

Well, I didn’t even have to thin the fruits, there were 6-7 fruits on the bush and that’s it. I’ll repeat it next year, maybe it will adapt a little.

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GalinaD (Galina) ⭐ Pro Grower (10,874 posts)
📍 Cherepovets, Vologda Region (USDA Zone 4)

Girls, maybe you pruned (suckered) it? Mine was also very productive. When I harvested most of the fruits, new ones started developing from the tips. And even now there are fruits on the bush. The taste, of course, is not excellent, and it is no champion in shelf life. You wouldn’t just eat it fresh. But it is suitable for juice and other preserves.

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ZhavoronoK (Ekaterina) ⭐ Pro Grower (3,619 posts)
📍 Moscow Region (USDA Zone 4)

For me, it was a real champion 👍. It fed us, didn’t get sick, and delighted us with huge sizes in open ground.

This is the largest one 😳, the rest are a bit more modest…

Huge EM-Champion tomato in hand
EM-Champion tomatoes
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Tanya M (Tatyana) ⭐ Pro Grower (6,425 posts)
📍 Kyiv-Brovary, Ukraine (USDA Zone 6)

And here is my handsome boy.

Perfect heart shaped red EM-Champion tomato

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kae-2 (Irina) ⭐ Pro Grower (4,537 posts)

Tanya M wrote:
And here is my handsome boy.

That’s for sure, a handsome boy 👍 Tatyana, is it like this in the open ground or in a greenhouse? And if in a greenhouse, how tall will it be? 🌺

Edited July 27, 2015 by Drosera

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Tanya M (Tatyana) ⭐ Pro Grower (6,425 posts)
📍 Kyiv-Brovary, Ukraine (USDA Zone 6)

Irina, in open ground, here is another one.

Another large red EM-Champion tomato

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Lana_s_Kavkaza (Svetlana) ⭐ Pro Grower (19,262 posts)
📍 Pyatigorsk (USDA Zone 6)

In the greenhouse, it stayed very short, no higher than 1m (3 ft).

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Andrey_K (Andrey) ⭐ Pro Grower (994 posts)

The taste is absolute crap… don’t plant it at all.

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Lana_s_Kavkaza (Svetlana) ⭐ Pro Grower (19,262 posts)
📍 Pyatigorsk (USDA Zone 6)

Andrey_K wrote:
The taste is absolute crap… don’t plant it at all.

I liked it, it just grew and grew, and turned out quite tasty and early.

Ripe EM-Champion tomatoes harvested

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Tanya M (Tatyana) ⭐ Pro Grower (6,425 posts)
📍 Kyiv-Brovary, Ukraine (USDA Zone 6)

Lana_s_Kavkaza wrote:
I liked it, it just grew and grew, and turned out quite tasty and early.

I liked it too, I will definitely plant it again. Even though it says F1, I am saving seeds.

Ripe EM-Champion tomatoes harvested

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Drosera (Svetlana) ⭐ Pro Grower (5,413 posts)
📍 Yekaterinburg (USDA Zone 3)

Tanya M wrote:
Even though it says F1, I am saving seeds.

In the State Register, EM Champion is registered as a stabilized variety (not an F1 hybrid).

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kae-2 (Irina) ⭐ Pro Grower (4,537 posts)

Lana_s_Kavkaza wrote:
In the greenhouse, it stayed very short, no higher than 1m.

Aha, so either under low tunnels or at the very edge of the greenhouse 🌺

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kae-2 (Irina) ⭐ Pro Grower (4,537 posts)

Andrey_K wrote:
The taste is absolute crap… don’t plant it at all.

And what was it, sour or bland? 😉

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kae-2 (Irina) ⭐ Pro Grower (4,537 posts)

Tanya M wrote:
I liked it too, I will definitely plant it again. Even though it says F1, I am saving seeds.

Tatyana, on my packet it says it’s a variety, not an F1.

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Tanya M (Tatyana) ⭐ Pro Grower (6,425 posts)
📍 Kyiv-Brovary, Ukraine (USDA Zone 6)

Yes, Irina — it is a variety, which is great! I must have confused it with something else, I apologize. This means we can safely save seeds. But mine is red, and here it says it’s pink 😳.

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Olya Pskovishna (Olga) ⭐ Pro Grower (14,072 posts)
📍 Pskov (USDA Zone 5)

Andrey_K wrote:
The taste is absolute crap… don’t plant it at all.

To me, they are the tastiest. I don’t like bland tomatoes…

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larina (Larisa) ⭐ Pro Grower (8,327 posts)

A reliable, hard-working variety for open ground – this is the third year in a row I am convinced of this. The taste is classic tomato.

Reliable EM-Champion tomato harvest

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Olya Pskovishna (Olga) ⭐ Pro Grower (14,072 posts)
📍 Pskov (USDA Zone 5)

The bush looked nice, didn’t push out too many suckers. And for my plebeian taste, it was the most delicious. But I like them slightly tart. Not sour, but exactly sweet-and-sour. I will plant it in the greenhouse next year.

Harvest of various tomatoes including EM-Champion

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ERA33 (Elena) 🌱 Vegetable Grower (129 posts)

Girls, has anyone planted EM-Champion in a greenhouse? I have tiny plants, 30 cm (12 inches) tall, completely covered with suckers, what should I do with them? Prune them or leave them?

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Elena 62 (Elena) ⭐ Pro Grower (2,063 posts)

Should I sucker (prune) it in the open ground (light hoophouse)? How many suckers should I leave? And do I need to prune up to the first truss?

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Elena 62 (Elena) ⭐ Pro Grower (2,063 posts)

No one wrote what company the seeds are from? Are they from Sibsad (Siberian Garden)?

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ElenaPr (Elena) ⭐ Pro Grower (3,433 posts)

I grew this variety last year in open ground. I did not prune the tomato, and there were a lot of fruits. Because there were so many fruits, it completely fell over out of the garden bed, I later had to prop it up with a bench. I want to plant it again next season. My seeds are from Larisa (larina).

Bushes of EM-Champion falling over from fruit weight
Large red heart tomato
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Aglaya (Olga) ⭐ Pro Grower (3,132 posts)

It’s the only variety I have today that has set its first tomato. And the tomato is growing in volume literally before my eyes.

BUT. It pushes out suckers desperately, and the sucker immediately has a flower truss. The flower trusses immediately have 6-12 flowers. Is this vegetative overgrowth (nitrogen toxicity)?

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Svetikk (Svetlana) ⭐ Pro Grower (29,354 posts)
📍 Moscow Region, Stupino District (USDA Zone 4)

A very good short (up to 60cm / 24 inches) early variety. Grew two twin bushes in the greenhouse, didn’t remove the suckers, requires good tying, otherwise it will fall under the weight of the crop. Completely covered with cute red hearts up to 200g (7 oz).

The bush is elegant, “weeping willow” type, the stems are thin and flexible, the leaves hang down and are not wide.

Seeds from Alexander (Syr-Daryinets).

Edited January 4, 2019 by Svetikk

EM-Champion weeping willow type foliage
Thin wispy foliage of the EM-Champion tomato plant
Beautiful red oxheart EM-Champion tomato
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sivi (Yury) 🌱 Beginner (2 posts)
📍 Yaroslavl (USDA Zone 4)

We’ve been growing it for a long time. A good and tasty slicing variety. The only problem this year is the heat in the greenhouse, and it blooms almost all at once. The first truss is good, 7-8 large fruits, but a large part of the fruit set dropped off due to the heat in the greenhouse. I’ll see what happens next.

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Valentina-11 (Valentina) 🌱 Beginner (49 posts)
📍 Poltava, Ukraine (USDA Zone 6)

Poltava. Open ground. Bush about 60 cm (24 in). Fruits are large and medium hearts, meaty, juicy, tasty. I liked it very much.

EM-Champion tomatoes harvested in Ukraine
Beautiful meaty oxheart tomato cross section
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