Data specific to Tomatoes (Edit)
Heredity: Open Pollinated
Skin Color: Red
Fruit Shape: Plum
Fruit Size: Medium
Leaf Type: Regular-Leaf
Best Uses: Slicing
Canning
Paste
Growth Mode: Indeterminate
Earliness: Mid-season
Country: Poland

General Plant Information (Edit)
Plant Habit: Vine
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Minimum cold hardiness: Zone 11 +4.4 °C (40 °F) to +7.2 °C (50 °F)
Plant Height: Varies greatly by species and cultivated variety.
Plant Spread: Varies greatly by species and cultivated variety.
Leaves: Other: Varies greatly by species and cultivated variety.
Fruit: Showy
Edible to birds
Fruiting Time: Other: Varies greatly by species and cultivated variety.
Flower Color: Yellow
Bloom Size: Under 1"
Flower Time: Other: Varies greatly by species and cultivated variety.
Uses: Vegetable
Suitable as Annual
Edible Parts: Fruit
Eating Methods: Raw
Cooked
Resistances: Rabbit Resistant
Toxicity: Leaves are poisonous
Roots are poisonous
Propagation: Seeds: Self fertile
Other info: Direct sowing into the garden not recommended. Sow seeds into sterile seed starting mix, 1/8"-1/4" deep, indoors, 6-8 weeks prior to last expected frost date. Optimal germination occurs in 7-14 days with constant moisture and soil temperatures of 75-90F.
Propagation: Other methods: Cuttings: Stem
Pollinators: Self
Various insects
Containers: Preferred depth: Some tomato varieties, primarily dwarf and determinate varieties, are suitable for container gardening. Large, vining, indeterminate types can be grown in 5 gallon or larger containers but may require extra attention.

Image
Common names
  • Tomato
Botanical names
  • Accepted: Solanum lycopersicum
  • Synonym: Lycopersicon lycopersicum

Comments:
  • Posted by katesflowers (Michigan - Zone 4b) on Aug 21, 2021 12:49 PM concerning plant:
    Growing zone 4b, S.E. Michigan. I grew my Opalka plants from seed, started indoors March 13, 2021.
    I picked the first two Opalka heirloom tomatoes today, August 21, 2021.
    It's mid-August and the vines are vibrant and still producing blooms. Plants have sturdy stakes and are off the ground. While I see hornworm, fusarium blight & cracking on neighboring Cherokee Purple & Sungold Cherry tomatoes, there are none of these problems with Opalka.
    Ripe tomatoes are firm and overall red with no green or tough shoulders.
    Upon washing & slicing, I notice skin is not tough or thick. Very few seeds, mostly even red flesh that is NOT mealy. These are not an excessively juicy tomato.
    Flavor is real old fashioned tomato. A light hint of sweetness, not acid tasting at all. When eaten alone, a sweet aftertaste can be detected.
    I predict I would use Opalka as a slicer for fresh serving; for paste, sauce, ketchup; in stews & soups; water bath canning method, and, even freezing whole.
    I will save seeds & grow again next year.
  • Posted by Jai_Ganesha (WV - Zone 6b) on Jun 20, 2018 8:59 AM concerning plant:
    This is a small matter, but I noticed that the database entry says the flowers on this variety are under 1" wide. In my experience because this variety has flowers which stretch out like starfish (see the picture I added) they are at (or just over) 1" when measured tip-to-tip. They are definitely larger than flowers on other tomato varieties I've grown.
Plant Events from our members
lovesblooms On April 20, 2015 Seeds germinated
lovesblooms On January 29, 2015 Seeds sown
winter sown
dnrevel On May 23, 2021 Transplanted
Transplanted at Project Grow on a very hot day. Tomatoes love the heat, but it can be tough on the gardener.
dnrevel On March 24, 2021 Seeds sown
March 24, 2021: Seeds sown indoors, pots on a heat mat, under lights. My own collected seed from 2020.
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