🍅 Quick take: Rosi Mari is an indeterminate, mid-season heirloom beefsteak renowned among northern growers as a dependable workhorse. Producing uniform 10 oz (300 g) and larger oblate slicers in shades ranging from bright red to deep rose-scarlet, it sets fruit early without dropping blossoms even during erratic spring weather. While its flavor profile is straightforward, juicy, old-school tomato without extreme sweetness, its resilience and high yield make it a rock-solid staple for open ground and unheated greenhouses in short-season regions (USDA Zones 3-5). Full summary ↓
Growers’ Notes and Photos (USDA Zones 3-5 Experience)
Mid-season, indeterminate fresh-market slicer. Fruits are red, medium to large, oblate beefsteaks. Juicy, with a standard old-school tomato flavor. Average yield for me. Grew it outdoors in open ground. Seeds sourced from Tatiana Kouchnareva.
Rosi Mari
Really liked this variety. Ended up being very heavy-yielding for me, although I didn’t see any runaway mammoth giants. The progression shots show July, August, and the very tail end of September. Flavor is classic, balanced, old-fashioned tomato 😋
Really liked this variety. Ended up being very heavy-yielding for me, although I didn’t see any runaway mammoth giants. The progression shots show July, August, and the very tail end of September. Flavor is classic, balanced, old-fashioned tomato 😋
Bought my seeds online from Tumanov’s shop. In my garden, the fruit color was definitely not plain red 🤷, more of a vibrant rose-scarlet. But I genuinely loved this variety!
Productivity was fantastic. It was one of the earliest to start setting fruit, didn’t drop a single blossom, and just kept steadily cranking out tomatoes all season long. We ended up pulling the final clusters while still green simply because it was time to clear out the greenhouse for winter.
An absolute workhorse of a variety. The fruits are very handsome, smooth and uniform, right around 10 oz (300 g), and they actually sized up even larger higher up the vine.
Productivity was fantastic. It was one of the earliest to start setting fruit, didn’t drop a single blossom, and just kept steadily cranking out tomatoes all season long. We ended up pulling the final clusters while still green simply because it was time to clear out the greenhouse for winter.
An absolute workhorse of a variety. The fruits are very handsome, smooth and uniform, right around 10 oz (300 g), and they actually sized up even larger higher up the vine.
Full Summary: Plant, Yield, Taste and Climate Versatility
- 🌿 Growth Habit: Indeterminate vine that adapts seamlessly to both outdoor garden beds and greenhouse culture. Strong blossom retention even through sudden cold snaps.
- ⚖️ Fruit Size & Shape: Oblate, smooth beefsteak averaging 10 oz (300 g), often sizing up larger on middle and upper trusses. Color varies from deep red to rich rose-scarlet.
- 👅 Flavor Profile: Classic, balanced, old-school heirloom profile with plenty of juice and moderate acid. Not an overly sugary dessert tomato, but a reliable, savory table slicer.
- 📈 Productivity: Outstanding setter. Flowers early and continues fruiting straight into late autumn until frost halts growth.
- 🌎 Reviewed In: Kostroma, Pskov, and the Southern Ural steppes of Bashkortostan (USDA Zones 3b to 5a).
