How to Grow Ruby Ness
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Ruby Ness
Lycopersicon esculentum 'Ruby Ness'
vegetableRuby Ness is a determinate (bush-type) tomato variety known for its deep red, globe-shaped fruits and robust disease resistance. It was developed for commercial production but is well-suited to home gardeners seeking reliable yields and good flavor in compact plants.
When should you plant Ruby Ness in your zone?
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Example Ruby Ness timeline · Pittsburgh, PA (Zone 6b)
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Plant Ruby Ness
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Ruby Ness
Around Jun 21≈ 65 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Ruby Ness dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-9; can be grown in zones 3-10 with appropriate timing
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Seedling
2-3 weeksTiny sprouted seedlings with cotyledons (seed leaves) emerge. First true leaves appear within 1-2 weeks.
Keep soil moist but not saturated. Provide bright light (grow lights 3-4 inches above seedlings, 14-16 hours daily). Maintain 65-75°F. Avoid overshadowing.
Vegetative
3-4 weeks indoors; outdoors until flowering beginsPlant develops multiple sets of true leaves and a sturdy stem. Roots establish and branches begin to form.
Thin seedlings or transplant to individual pots when first true leaves appear. Gradually acclimate to outdoor conditions (hardening off) over 7-10 days before planting. Once transplanted outdoors, provide support structure early.
Flowering
2-3 weeksYellow flower clusters (inflorescences) appear in leaf axils. Plant is bushy and compact as a determinate type.
Maintain consistent watering and fertilization with balanced or slightly phosphorus-rich fertilizer. Do not over-fertilize with nitrogen, which promotes foliage at the expense of fruit. Light pruning of suckers may be done but is often unnecessary on determinate types.
Fruiting & Development
3-4 weeksGreen marble-sized fruits develop and expand rapidly. Fruits grow to full size (2-3 inches diameter) over several weeks before color change begins.
Provide sturdy support or cages; determinate plants are more compact but still benefit from support to protect fruit from soil contact. Continue consistent watering to prevent blossom-end rot and cracking. Mulch around base to maintain soil moisture and temperature.
Ripening & Harvest
2-3 weeks for full color development; harvest continuesFruits transition from green to deep red color, starting at the blossom end. Fruits feel slightly soft when fully ripe.
Pick fruits at first blush of color or full red, depending on preference and ripeness. Ruby Ness fruits continue to ripen after picking if stored at room temperature. Monitor for late blight and other diseases as fruit matures.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick large caterpillars; use Bacillus thuringiensis (Bt) spray for smaller infestations. Encourage parasitoid wasps.
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Use yellow sticky traps; spray with neem oil or insecticidal soap. Maintain good air circulation.
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Increase humidity and water plants from below. Use miticide or neem oil if severe.
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Remove infected lower leaves; improve air circulation. Apply fungicide containing chlorothalonil or copper. Avoid overhead watering.
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Apply fungicide at first sign; remove heavily infected plants. Space plants for airflow and avoid wet foliage.
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Plant resistant varieties (Ruby Ness has some resistance); avoid overwatering and poor drainage. Remove affected plants.
Uses
Fresh eating and salads
CulinaryRuby Ness produces deep red, flavorful globe tomatoes ideal for slicing into salads, sandwiches, and fresh appetizers. The balanced acid and sugar content provides good tomato flavor. [source]
Canning and preserves
CulinaryThe determinate growth habit and concentrated ripening make Ruby Ness ideal for canning and sauce production. Its solid flesh and good acid content support shelf-stable preserves. [source]
Cooking and sauces
CulinaryRuby Ness can be used to make tomato sauce, passata, and cooked dishes. Its disease resistance and reliable yields make it economical for season-long cooking uses. [source]
Antioxidant and heart health
MedicinalTomatoes are rich in lycopene, a carotenoid antioxidant associated with cardiovascular health and reduced cancer risk. Ruby Ness's deep red color indicates high lycopene content. [source]
Pollinator support
WildlifeThe yellow flowers of Ruby Ness attract bees and other pollinators to the garden, supporting broader ecosystem health and garden productivity. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Ruby Ness matures all its fruit in a concentrated window (determinate trait), making it excellent for fresh use and canning. Pick fruits when fully red for maximum flavor and sweetness, or at first blush if you prefer slightly firmer texture. Twist gently or use pruning shears to detach. Fruits continue ripening after picking at room temperature. Harvest regularly to encourage continued production until frost.
Fun Facts
- 🌱 Ruby Ness is a determinate (bush-type) tomato, meaning it grows to a set height and ripens most of its fruit at once—perfect for canning operations and gardeners who want a large harvest at one time.
- 🌱 The variety was developed in the mid-20th century and became a commercial favorite due to its disease resistance, compact growth, and uniform ripening characteristics.
- 🌱 Ruby Ness tomatoes are considered a 'paste' or 'processing' variety by some growers, though they are versatile enough for fresh eating as well.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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