How to Grow Avanti Purple

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Avanti Purple

Solanum lycopersicum 'Avanti Purple'

vegetable

Avanti Purple is a modern indeterminate (vining) tomato variety bred for disease resistance and exceptional flavor. It produces medium-sized, deep purple-red fruits with rich, complex taste and superior sweetness. This variety is known for its vigor, productivity, and resistance to late blight and other common tomato diseases.

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Example Avanti Purple timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Avanti Purple

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Avanti Purple

    Around Jun 26

    ≈ 70 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Avanti Purple dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 8-10 hours daily for optimal fruit production and flavor development
💧
Water: Consistent moisture of 1-1.5 inches per week; deep watering at soil level to prevent disease. Avoid wetting foliage. Water more frequently during fruiting and hot weather.
📏
Spacing: 24 inches
📅
Days to maturity: 70-80 days from transplant to first fruit
🌱
Planting depth: Start seeds 1/4 inch deep indoors; transplant seedlings 6-8 weeks before last frost, planting deep (bury stem up to first true leaves)

Soil

Type: Well-draining loamy soil rich in organic matter
pH: 6.0-6.8
Amendments:
compost aged manure mycorrhizal fungi bone meal for phosphorus

Growing Zones

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Thrives in zones 5-9; can be grown in zones 3-4 with season extension and in zones 10+ with afternoon shade

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

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Growth Stages

1

Seedling

2-3 weeks after germination

Tiny plants with 2-4 true leaves, 2-3 inches tall

Maintain soil moisture and provide 14-16 hours of bright light daily. Keep temperature at 65-75°F. Thin seedlings to prevent crowding.

2

Vegetative Growth

3-4 weeks after transplanting

Bushy plants 6-12 inches tall with multiple stems and branches, no flowers yet

Harden off seedlings over 7-10 days before transplanting. Plant deeply in garden to encourage strong root development. Pinch off lower leaves once plant is established. Begin staking or caging early.

3

Flowering

3-4 weeks

Plants 2-4 feet tall with dense foliage, producing clusters of yellow flowers

Maintain consistent watering and nutrient supply. Prune lower 8-12 inches of foliage for disease prevention. Provide sturdy support; secure to stakes as needed. Do not over-fertilize nitrogen.

4

Fruiting

5-7 weeks until maturity

Grape-sized green fruits developing into larger, deepening purple-red orbs

Continue deep watering; mulch around base. Prune excess foliage moderately to expose developing fruit to light while maintaining canopy to prevent sunscald. Monitor for pests and diseases.

5

Harvest

Ongoing until frost, 6-10+ weeks

Fully ripe, deep purple-red fruits ready to pick, typically 2-3 inches diameter

Harvest at fully ripe stage (dark color, slight give when squeezed) for best flavor. Pick regularly to encourage more flowering and fruiting. Tomatoes can be picked at breaker stage and ripened indoors.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

brassicas (cabbage, broccoli) fennel kohlrabi dill

Common Pests

  • Hand-pick when visible; introduce parasitic wasps; use Bt (Bacillus thuringiensis) spray if infestation is severe

  • Reflective mulch, yellow sticky traps, neem oil spray, or insecticidal soap; encourage beneficial insects

  • Increase humidity, spray with water, neem oil, sulfur dust, or miticide if severe

  • Maintain consistent watering; mulch around base; avoid excessive nitrogen; add crushed eggshells or gypsum to soil

  • Remove lower infected leaves promptly; improve air circulation; use copper or chlorothalonil fungicide; avoid wetting foliage

Uses

🍳

Fresh eating & salads

Culinary

Avanti Purple's complex, rich flavor and balanced sweet-tart profile make it ideal for eating fresh off the vine, in salads, and on sandwiches. Its dark color and gourmet taste elevate any fresh tomato dish. [source]

🍳

Sauces & cooking

Culinary

The deep purple flesh and concentrated flavor are excellent for making pasta sauces, soups, and cooked tomato dishes. The indeterminate growth ensures a prolonged harvest for preserving. [source]

💊

Lycopene & antioxidants

Medicinal

Purple tomatoes are notably rich in anthocyanins and lycopene, antioxidant compounds associated with cardiovascular and cellular health benefits. Avanti Purple's dark pigmentation indicates high anthocyanin content. [source]

🏠

Home preservation

Household

The high yield and consistent fruit size of Avanti Purple make it excellent for canning, freezing, and making tomato paste or powder for long-term storage. [source]

🦋

Pollinator support

Wildlife

The abundant yellow flowers attract bees and other pollinators to the garden, providing nectar and supporting local pollinator populations while ensuring good fruit set. [source]

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

Harvest Tips

Pick fruits when fully ripe (dark purple-red color with slight softness) for maximum flavor and sweetness. Harvest regularly to encourage continued production throughout the season. Avanti Purple ripens well on the vine but can be picked at the breaker stage (first blush of color) and ripened indoors if frost approaches. Cool temperatures below 68°F slow ripening; fruit develops best flavor between 70-85°F.

Fun Facts

  • 🌱 Avanti Purple was bred specifically for disease resistance to late blight (Phytophthora infestans), the pathogen responsible for the 1845 Irish Potato Famine, demonstrating how modern plant breeding addresses historical agricultural challenges.
  • 🌱 The purple-red color in Avanti Purple comes from anthocyanin pigments, the same compounds that give blueberries and black grapes their color, making this tomato variety botanically unique among common red tomato varieties.
  • 🌱 As an indeterminate variety, Avanti Purple will continue flowering and producing fruit until frost, potentially yielding 100+ fruits per plant over a season in ideal conditions, making it one of the most productive garden tomatoes.

Gardening Terms

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

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