How to Grow Crimson Tide Tomato

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Crimson Tide Tomato

Solanum lycopersicum 'Crimson Tide'

vegetable

Crimson Tide is a determinate (bush-type) heirloom tomato variety known for its deep red, medium-sized fruits and exceptional flavor. Developed in the early 2000s, it combines disease resistance with the rich taste of traditional tomatoes. This variety is popular among home gardeners for its productivity and crack-resistant fruits.

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Example Crimson Tide Tomato timeline · Pittsburgh, PA (Zone 6b)

Plant Crimson Tide Tomato
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Crimson Tide Tomato
Around Jun 26

≈ 70 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Crimson Tide Tomato dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum (8+ hours preferred)

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Water: Consistent moisture; water deeply 1-2 inches per week. Avoid wetting foliage to prevent disease. More frequent watering needed during hot, dry periods.

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Spacing: 24-36 inches

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Days to maturity: 70-85 days from transplant

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Planting depth: 1/4 inch for seeds; plant transplants deep (bury stem up to first true leaves)

Soil

Type: Well-draining, fertile loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost aged manure perlite or coarse sand for drainage balanced organic fertilizer

Growing Zones

Find your zone →

Zones 5-9 are ideal; can be grown in zones 3-10 with appropriate timing

3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a

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Growth Stages

Seedling

3-4 weeks

Small plants with 2-3 true leaves, delicate stem structure, pale green foliage

Keep soil moist but not waterlogged. Provide bright light or grow lights for 14-16 hours daily. Maintain temperature around 70°F.

Transplant/Vegetative

2-3 weeks before transplanting outdoors

Stocky plants 6-12 inches tall with several sets of true leaves; ready for hardening off and outdoor transplanting

Harden off gradually over 7-10 days. Transplant deeply to encourage strong root system. Mulch around base to retain moisture and regulate soil temperature.

Growth & Flowering

3-4 weeks

Bush plants 3-4 feet tall with dense foliage, first flower clusters appearing 3-4 weeks after transplanting

As a determinate variety, light pruning is optional. Support with stakes or cages early. Maintain consistent watering. Apply balanced fertilizer every 2-3 weeks.

Fruiting

3-4 weeks

Plants laden with developing green fruits that gradually turn deep crimson red; typically 3-5 fruits per cluster

Continue consistent watering to prevent cracking and blossom-end rot. Reduce nitrogen fertilizer to avoid excessive foliage at expense of fruit. Monitor for pests and diseases.

Harvest

2-3 weeks of active harvesting

Fully ripe, deep red tomatoes ready for picking; determinate plants concentrate ripening over 2-3 week period

Pick fruits at full ripeness for best flavor. Harvest regularly to encourage continued production. Ripe tomatoes store best at room temperature, not refrigerated.

Companion Planting

Plan your garden →

Plant with:

Basil Parsley Carrots Onions Marigolds Nasturtiums Borage

Avoid planting near:

Brassicas (cabbage, broccoli) Fennel Potatoes Dill

Common Pests

Hand-pick daily; encourage parasitic wasps; use Bt (Bacillus thuringiensis) spray if needed
Spray with insecticidal soap or neem oil; use yellow sticky traps; introduce beneficial insects like ladybugs
Increase humidity; spray with water; use neem oil or insecticidal soap; release predatory mites
Remove affected lower leaves; improve air circulation; mulch to prevent soil splash; apply copper fungicide if severe
Remove infected leaves immediately; apply copper or chlorothalonil fungicide; ensure good air circulation; avoid overhead watering

Uses

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Fresh eating and slicing

Culinary

Crimson Tide's deep, complex flavor and balanced sweetness/acidity make it exceptional for fresh eating, slicing for salads, and enjoying raw. The crack-resistant skin holds up well on the plate without splitting. [source]

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Sauces and preservation

Culinary

High pectin and solid flesh content make Crimson Tide excellent for tomato sauce, paste, canning, and preserving. The depth of flavor concentrates beautifully during cooking. [source]

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Nutritional benefits

Medicinal

Rich in lycopene, vitamin C, potassium, and antioxidants; lycopene content increases when tomatoes are cooked, supporting heart health and reducing inflammation. [source]

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Seed saving

Household

As a heirloom variety, Crimson Tide seeds breed true and can be saved easily for next season. Ferment seeds in water for 48 hours, rinse thoroughly, and dry completely before storage. [source]

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Pollinator support

Wildlife

Tomato flowers attract bees and other beneficial pollinators. Growing multiple plants encourages pollinator activity and creates habitat for beneficial insects in the garden. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest when fully red but still slightly firm for best flavor. Crimson Tide is crack-resistant compared to many heirloom varieties, but pick during consistent watering periods. Ripe fruits can be left on the vine until ready to harvest. As a determinate variety, most fruit ripens over 2-3 weeks; plan accordingly for canning or processing. Store at room temperature (65-75°F) for maximum flavor.

Fun Facts

🌱 Crimson Tide was developed by Tom Wagner, a renowned open-pollinated tomato breeder, by crossing two disease-resistant heirloom varieties to create a tomato that combines flavor with practical disease resistance.
🌱 Despite being an heirloom-type tomato, Crimson Tide has unexpected disease resistance genes that protect it from late blight and early blight—uncommon in traditional heirloom varieties.
🌱 The name 'Crimson Tide' references the University of Alabama's athletics teams, reflecting the tomato's deep crimson-red color and strong reputation in gardening communities.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Full Sun Hardening Off Heirloom Mulch Transplant True Leaves

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