Sweet Miracle (Sladkoe Chudo) Red Oxheart Tomato Review

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Quick Summary of Sladkoe Chudo (Sweet Miracle)

  • 🌍 Origin: A highly prized Russian heirloom. The name translates to “Sweet Miracle.” Warning: This thread reveals that many commercial seed companies sell incorrect, off-type seeds under this name. The “true” variety described here was circulated among collectors (originating from N. Berezhnova).
  • 🌿 Plant Habit: Indeterminate, reaching about 1.5 to 2 meters (5 to 6.5 ft) tall. It has classic oxheart traits: the plant footprint is very compact, and the foliage is quite “wispy” and delicate. Because of this, it requires full sun and good airflow—do not let it get shaded out by bushier plants.
  • 🍅 Fruit Characteristics: Large, beautiful red hearts with slight ribbing. They are incredibly meaty and dense, containing almost no seeds. The average weight is around 400g (14 oz), but they can easily reach 500–800g (1.1–1.7 lbs).
  • 👅 Flavor: Absolutely lives up to its name. It is exceptionally sweet, sugary, and rich, even late into the autumn season.
  • 💡 The Seed Mystery: True Sweet Miracle is a tall, indeterminate red oxheart. If you buy commercial packets that claim it is a determinate bush, or if it produces small, flat-round tomatoes, you have a commercial fake!
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ElenaN (Elena) ⭐ Pro Grower (28,513 posts)
📍 Kostroma, Russia (USDA Zone 4)

A tall, indeterminate variety. The fruits are red, heart-shaped with slight ribbing, beautiful, meaty, and very sweet. In fact, it was the sweetest variety of my entire 2013 season (out of 90 varieties grown!). Even towards the end of summer and the beginning of autumn, the fruits didn’t lose their sweetness.

There are very few seeds inside the fruit. The stated potential weight is up to 800g (1.7 lbs). Mine grew outdoors in open ground, and the average fruit weight was 400 grams (14 oz). The fruits did not crack.

I pruned it to 2 stems. The yield was average, but purely because of the amazing sweet taste, I will definitely be repeating this variety.

Seeds were from collector N. Berezhnova.

Large red Sweet Miracle oxheart tomato on a scale
Sliced Sladkoe Chudo tomato showing very meaty seedless flesh

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Tomatanya (Tatiana) ⭐ Forum Moderator (10,243 posts)
📍 Leningrad Region, Russia (USDA Zone 4)

Elena, I am planning to plant the seeds you sent me. Could you please tell me how many days it takes to mature? 📝

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Vesna ⭐ Pro Grower (6,365 posts)
📍 Russia

Wait, isn’t this just the variety “Market Miracle” (Chudo rynka)?

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OLGA ⭐ Pro Grower (1,735 posts)
📍 Voronezh Region, Russia (USDA Zone 5)

Girls, I grew “Market Miracle” from the commercial seed company Poisk, and it was garbage… It didn’t match the description at all, and it was just a really bad tomato overall.

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

Tatiana said:
Could you please tell me how many days it takes to mature? 📝

Tatiana! I would classify it as a mid-season variety. I sowed the seeds on March 5th, and the first ripe red fruits were picked in early August.

I also want to add that the bushes did not suffer from any diseases at all, and I harvested the last fruits at the end of September (grown outdoors in open ground).

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Tatiyanka1 ⭐ Pro Grower (3,167 posts)
📍 Russia

I bought this commercial packet, so I will plant it alongside the true seeds Elena sent me. It will be interesting to compare.

But looking at the packet, it looks flat-round, whereas Elena’s photos clearly show a heart shape… I don’t really understand, maybe I’ll end up with “Sweet Miracle #2” 😄

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marinas11 (Marina) ⭐ Pro Grower (1,191 posts)
📍 Novorossiysk, Southern Russia (USDA Zone 7)

I’m also growing that one, plus another packet from Redko. The names are the same, but the descriptions are completely different. I will compare them.

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

Tatiana! I think I’ve seen that commercial packet in stores. Check the back—does it say it’s a determinate (bush) variety?

My true Sweet Miracle has very pronounced, obvious heart shapes, that’s for sure.

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Tatiyanka1 ⭐ Pro Grower (3,167 posts)
📍 Russia

Elena said:
Check the back—does it say it’s a determinate (bush) variety?

Here is exactly what the commercial website (Ural’skiy Dachnik) says:

“Large, sweet fruits containing a huge amount of sugar. The plant is determinate, requires no staking or pruning. Fruits are deep red, meaty, weighing up to 200g (7 oz). Resistant to a complex of diseases.”

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Danko (Elena) ⭐ Pro Grower (10,117 posts)
📍 Russia

My Sweet Miracle is the true one from Nadezhda Berezhnova.

The photos above show a transverse cut, but here is a longitudinal cut. Drool over this until summer gets here! 😉 😄

Longitudinal slice of true Sladkoe Chudo oxheart tomato showing dense meat

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Galina P. ⭐ Pro Grower (37,710 posts)
📍 Moscow / Chekhov District (USDA Zone 4)

Elena, was yours super sweet too?

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Danko (Elena) ⭐ Pro Grower (10,117 posts)
📍 Russia

Galina P. said:
Elena, was yours super sweet too?

The tastiest of them all! 👍👍👍

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Ovechka (Lyudmila) ⭐ Pro Grower (13,966 posts)
📍 Russia

Something is wrong with mine. My “Miracle” is growing as a flat-round shape 😳 (Clearly an off-type).

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Nelli ⭐ Pro Grower (27,498 posts)
📍 Fryazino, Moscow Region (USDA Zone 4)

Here is what my Sweet Miracle grew into.

But there were only two of them on the entire bush…
And when I cut it open, I found exactly 5 fully formed seeds in the whole thing…

Large red Sweet Miracle tomato held in hand
Inside slice of nearly seedless Sladkoe Chudo tomato

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Tatiyanka1 ⭐ Pro Grower (3,167 posts)
📍 Russia

Sweet Miracle turned out to be one of the absolute best varieties of this year! (I grew the true seeds sent by Elena, which originally came from N. Berezhnova).

The variety is delicious, sweet, and large. It didn’t throw any tantrums as a seedling, and it grew without any problems. It is an indeterminate, but it takes up very little horizontal space (compact footprint). Mid-season. Bright red color, and all the fruits are uniform and flawless.

You know how collectors will often throw around the phrase “Super Variety!”? Well, this one actually deserves that title!!!

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Alena Latvia (Alena) ⭐ Pro Grower (1,366 posts)
📍 Latvia (USDA Zone 6)

Tatiyanka1 said:
Sweet Miracle turned out to be one of the absolute best varieties…

But what grew out of the commercial packet you bought?

It seems like everyone is getting different things! Some have a pointy tip, some don’t, some have a dimple… Why are there so many differences? I was looking into this variety, but all this extreme variation worries me. Is it genetically unstable? Did someone dehybridize an F1 hybrid? Or did commercial companies just shove several different random varieties under one marketable name?

I kind of want to try it, but what will actually grow? It feels like a pure experiment at this point.

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Tatiyanka1 ⭐ Pro Grower (3,167 posts)
📍 Russia

Alena said:
But what grew out of the commercial packet you bought?

Nothing grew out of the commercial packet, because mice broke into the greenhouse in early spring and ate the seedlings! There was still snow outside the greenhouse, so the poor things probably had nothing else to eat.

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Tatiyanka1 ⭐ Pro Grower (3,167 posts)
📍 Russia

Alena said:
It feels like a pure experiment at this point.

Alena, if you stick around the tomato-growing community, you will realize that you are going to have a LOT of experiments, and they will never stop!!! 🌹

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

Alena said:
Or did commercial companies just shove several different random varieties under one marketable name?

Alena! I am convinced that several completely different varieties have been shoved under one name by seed companies. Because the fruits people are showing are obviously completely different genetics. The true “Miracle” from Berezhnova has a very specific, delicate, wispy foliage plant structure. I don’t know what the commercial fakes look like.

Tatiana! I am so glad you loved the true Sweet Miracle! 👍🌹

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

A few more thoughts on Sweet Miracle.

Last year, I grew 2 plants outdoors in open ground—the yield was slightly above average, which I consider perfectly fine for a gourmet-tasting variety. This year, I grew one bush in the greenhouse (in the middle, slightly shaded) and one outdoors. The one in the shaded greenhouse only produced TWO tomatoes, while the outdoor one performed just as well as last year.

So, does this mean the variety is strictly for outdoors? Or does it mean that in a greenhouse, it needs to be planted in the absolute sunniest, most open spot because its wispy foliage structure can’t compete for light? It probably needs heavy feeding, too.

Regardless, it is staying on my favorites list for the second year in a row because it is sweet, meaty, and practically seedless.

Large red Sweet Miracle oxheart tomato
Sliced Sweet Miracle tomato showing rich dense interior

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Tatunya (Tanya) ⭐ Pro Grower (13,804 posts)
📍 Istra District, Moscow Region (USDA Zone 4)

I noticed the exact same behavior with the variety Southern Tan (Yuzhny Zagar). For some people, it sets fruit much better outdoors. If it’s in a greenhouse, it clearly needs a lot of personal space and light.

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Lana (Svetlana) ⭐ Pro Grower (1,417 posts)
📍 Russia

Here is my Sweet Miracle. The tomato is wonderful. I planted it in 2013 (a very hot summer) and repeated it in 2014 (an abnormally cold summer), and the yield and taste brought me nothing but joy both times.

Beautiful red oxheart Sweet Miracle tomato on a digital scale
Sliced Sladkoe Chudo showing meaty heart shape

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Svetikk (Svetlana) ⭐ Pro Grower (29,344 posts)
📍 Moscow / Stupino Region (USDA Zone 4)

Elena said:
Or does it mean that in a greenhouse, it needs to be planted in the absolute sunniest, most open spot…

Elena, the seeds were from you, thank you! 🌹

Mine grew in the new greenhouse right by the aisle, pruned to two stems. The yield was normal—about 10 large hearts per plant 😉 It got lucky because almost nothing shaded it! 😄 Very meaty 👍, sweet 😋, with very few seeds.

Greenhouse grown red Sweet Miracle tomatoes on scale
Meaty red slice of Sweet Miracle oxheart tomato

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Svetikk (Svetlana) ⭐ Pro Grower (29,344 posts)
📍 Moscow / Stupino Region (USDA Zone 4)

The following year, this variety delighted me again—with its yield, its taste, and the massive size of the fruits! The average weight was 400-500g (14-17.5 oz)! 🍅🍅🍅

Massive 500g red Sweet Miracle tomato
Beautiful red oxheart shape of Sladkoe Chudo
Cross section of huge red Sweet Miracle tomato

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Tatyana Senchukova (Tatiana) ⭐ Grower (542 posts)
📍 Velsky District, Russia (USDA Zone 3)

I planted it in the summer of 2016, seeds from the commercial company “Ural’skiy Dachnik”. A real “miracle” alright… the plant grew 1.8m tall, sprawling, and produced exactly 4 fruits. The taste wasn’t sour, but it was incredibly bland, and definitely not sugary/sweet! (A classic commercial fake).

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

I grew 2 bushes of Sweet Miracle in a polycarbonate greenhouse—one pruned to two stems, the other to a single stem. The bush was very compact, not sprawling, 150 cm (5 ft) tall, took up very little space, and grew in the brightest spot. I didn’t weigh the fruits, but they looked to be well over 200-400 grams (7-14 oz).

On the multi-stemmed plant, there were 4 trusses holding 12 huge tomatoes. On the single-stem plant, there were 4 trusses holding 11 tomatoes. As soon as I harvested the first truss, the tomatoes on the upper trusses rapidly swelled up. I loved the taste—they weren’t watery; they were perfectly dense, full fruits.

The seeds were from Svetikk, for which I am incredibly grateful! This is exactly why I only get my seeds from collectors, never commercial packets!!!!

In the photos: The Sweet Miracle bush on the left, hugging a Wolford Wonder. The second bush is visible in the corner.

Sweet Miracle tomato plants growing vigorously in greenhouse
Heavy trusses of Sweet Miracle red oxheart tomatoes

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cat2008 (Oksana) ⭐ Pro Grower (5,827 posts)
📍 Orsha, Belarus (USDA Zone 4)

My Sweet Miracle looks more like a giant plum than a heart.. 😄 but it justifies the name—it is sweet and meaty..

Elongated plum shaped variation of Sweet Miracle tomato

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ilja (Ilya) ⭐ Grower (758 posts)
📍 Klin District, Moscow Region (USDA Zone 4)

My Sweet Miracle variety also turned out to have a more elongated shape. In the greenhouse, it reached about 2 meters (6.5 ft) tall. The taste was excellent, very sweet.

Elongated red Sladkoe Chudo tomato on scale
Cross section of elongated Sweet Miracle tomato

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Olgazve (Olga) ⭐ Pro Grower (1,614 posts)
📍 Kostroma Region, Russia (USDA Zone 4)

And here is the “Sweet Miracle” that I ended up with. It grew as a determinate (bush) instead of an indeterminate, and they were small! To be fair, they were actually tasty. Or maybe I just haven’t eaten truly delicious tomatoes yet.

In the photo, “Sweet Miracle” is the bush in the back—small round tomatoes, noticeably with green shoulders. I saved seeds from it just in case.

Small round determinate off type fake Sweet Miracle tomatoes

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