How to Grow Wabash Tomato
Wikimedia Commons
Wabash Tomato
Solanum lycopersicum 'Wabash'
vegetableWabash is a determinate (bush-type) tomato variety bred by the USDA, known for its early maturity and disease resistance. It produces medium-sized, red, globe-shaped fruits with excellent flavor and is particularly valued for northern growing regions and short seasons. This variety was developed to resist verticillium wilt and fusarium wilt, making it a reliable choice for gardeners in challenging climates.
When should you plant Wabash Tomato in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Wabash Tomato timeline · Pittsburgh, PA (Zone 6b)
-
Plant Wabash Tomato
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Wabash Tomato
Around Jun 21≈ 65 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Wabash Tomato dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 3-9, with particular success in zones 3-6 due to early maturity
Sign up free to see if Wabash Tomato grows in your zone — and get a personalized planting timeline.
Get my Wabash Tomato timeline →Growth Stages
Seedling
3-4 weeksSmall plants with 2-4 true leaves, tender and delicate appearance
Provide bright light (14-16 hours daily under grow lights), maintain soil moisture without waterlogging, keep temperature around 65-70°F, thin seedlings to prevent crowding
Vegetative
2-3 weeks before transplantingSturdy transplants with 6-8 true leaves and bushy growth; ready to harden off and transplant outdoors
Gradually acclimate to outdoor conditions over 7-10 days, plant after last frost when soil is warm (60°F+), install support cage early, apply mulch around base
Flowering
3-4 weeksPlant develops flower clusters (racemes), typically with 3-5 flowers per cluster; healthy foliage continues growing
Maintain consistent watering to ensure flower set and prevent blossom end rot, provide balanced fertilizer, avoid excessive nitrogen which promotes foliage over flowers, support developing plant as needed
Fruit Development & Ripening
4-6 weeksFruits grow rapidly to golf ball size, then gradually ripen from green to mature red; plant may become heavy with fruit
Continue deep, consistent watering, reduce nitrogen and increase potassium/phosphorus for better flavor, prune excessive foliage only if needed for air circulation, monitor for pests and disease
Harvest
2-4 weeks peak productionFruits reach full red color and soft texture; plant produces concentrated crop typical of determinate varieties
Pick fruits at mature red stage for best flavor; determinate types produce most fruit within 2-3 week window, ideal for canning and preserving, can pick mature-green fruits if frost threatens and ripen indoors
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Handpick regularly, encourage parasitic wasps, use Bt (Bacillus thuringiensis) spray, monitor for dark droppings on leaves
-
and
(Fusarium oxysporum, Verticillium dahliae)
Wabash is resistant to both; plant in disease-free soil, practice crop rotation (3-year minimum), avoid overhead watering, remove infected plants
-
Remove lower leaves, improve air circulation, apply copper or sulfur fungicides, mulch to prevent soil splash
-
Maintain humidity with consistent watering, spray with water to dislodge, use insecticidal soap, encourage predatory mites
-
Use yellow sticky traps, spray neem oil or insecticidal soap, encourage natural predators, reflective mulch can deter
Uses
Fresh slicing and cooking
CulinaryExcellent medium-sized fruits perfect for slicing in salads, sandwiches, and fresh eating. Also suitable for sauces, soups, and stews due to balanced flavor and texture. [source]
Canning and preserving
CulinaryThe concentrated harvest window and disease-resistant determinate growth make Wabash ideal for processing into salsa, sauce, paste, and canned whole tomatoes. [source]
Lycopene and antioxidants
MedicinalTomatoes contain lycopene, a powerful antioxidant linked to cardiovascular and cancer-prevention benefits. Red tomato varieties like Wabash have higher lycopene content, especially when cooked. [source]
Cold climate gardening
HouseholdWabash was developed specifically for northern climates and short growing seasons, making it invaluable for gardeners in zones 3-5 where traditional late-season varieties fail to mature. [source]
Pollinator and beneficial insect support
WildlifeTomato flowers attract bees and other pollinators; the plant's foliage provides habitat for beneficial insects that prey on common garden pests. [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 tomatoes when fully red and slightly soft to touch; determinate varieties like Wabash produce most fruit within a concentrated 2-3 week window, making them ideal for preserving and canning. For peak flavor, harvest in early morning. Can pick mature-green fruits if needed and ripen at room temperature. Store at room temperature away from direct sunlight; refrigeration diminishes flavor.
Fun Facts
- 🌱 Wabash was developed by USDA plant breeders at the Purdue University Agricultural Experiment Station in the mid-20th century, specifically to solve tomato-growing problems in the Midwest and northern regions.
- 🌱 As a determinate variety, Wabash produces nearly all its fruit within a concentrated timeframe, making it the preferred choice for commercial canning operations and home preservers—often producing 40-60 fruits per plant in just 2-3 weeks.
- 🌱 The name 'Wabash' comes from the Wabash River, which flows through Indiana and Illinois, reflecting the variety's Midwestern breeding origins and adaptation to that region's growing conditions.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Wabash Tomato planting timeline
Tell us your zip code and we'll calculate exactly when to start Wabash Tomato seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Wabash Tomato timeline →