How to Grow Midnight Bonanza Tomato
Wikimedia Commons
Midnight Bonanza Tomato
Solanum lycopersicum 'Midnight Bonanza'
vegetableMidnight Bonanza is a hybrid cherry tomato variety known for its deep purple-black color and sweet, complex flavor. It produces abundant clusters of small, round fruits on indeterminate vines that continue producing until frost. This modern variety combines disease resistance with exceptional taste and visual appeal.
When should you plant Midnight Bonanza 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 Midnight Bonanza Tomato timeline · Pittsburgh, PA (Zone 6b)
-
Plant Midnight Bonanza Tomato
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Midnight Bonanza Tomato
Around Jun 26≈ 70 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Midnight Bonanza Tomato dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-10; can be grown in zones 3-4 with season extension techniques
Sign up free to see if Midnight Bonanza Tomato grows in your zone — and get a personalized planting timeline.
Get my Midnight Bonanza Tomato timeline →Growth Stages
Seedling
10-14 daysTiny plants with 2 cotyledons (seed leaves) and emerging true leaves. Plants are delicate and pale green.
Keep soil consistently moist but not waterlogged. Provide 14-16 hours of grow light daily. Maintain 65-75°F. Thin to strongest seedling per cell. Begin gentle air circulation at true leaf stage.
Vegetative Growth
4-6 weeksVigorous leafy growth with increasingly complex foliage. Stems thicken and plant develops multiple branch points. Height increases rapidly with multiple sets of true leaves.
Transplant to larger pots once plant reaches 2-3 inches. Harden off over 7-10 days before outdoor planting. Install sturdy stakes or cages early. Maintain consistent watering and begin fertilizing every 2 weeks with balanced fertilizer.
Flowering
2-3 weeksFirst flower clusters appear after 6-8 true leaves. Small yellow flowers form in characteristic tomato clusters (fascicles). Plant is bushy and spreading.
Continue staking/caging support. Switch to lower-nitrogen fertilizer (10-20-20) to encourage flowering over excessive foliage. Ensure consistent watering and maintain full sun exposure. Remove lower leaves to improve air circulation once flowering begins.
Fruiting & Maturation
3-5 weeks per clusterGreen marble-sized fruit appears at flower clusters. Fruits develop gradually, changing from green to pink to deep purple-black at full maturity. Multiple clusters form continuously on indeterminate vines.
Prune selectively—remove only bottom leaves and a few interior shoots for airflow. Maintain deep, consistent watering to prevent cracking and blossom end rot. Continue fertilizing every 2-3 weeks. Support heavy fruit clusters with additional ties or slings.
Harvest & Continued Production
8-12 weeks until frostRipe fruits are completely black-purple with glossy finish. Indeterminate growth continues producing new flowers and fruit clusters throughout season until frost.
Pick fruits at full color for best flavor. Leave some fruit on vine for continued ripening appearance. Continue deep watering and fertilizing. As temperatures drop in fall, remove upper growth to redirect energy to remaining fruit. In frost-prone areas, harvest all usable fruit before first hard freeze.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Hand-pick large caterpillars; use Bt (Bacillus thuringiensis) spray for smaller infestations; encourage parasitic wasp predators
-
Spray undersides of leaves with neem oil or insecticidal soap; use yellow sticky traps; encourage beneficial insects
-
Increase humidity with misting; spray with strong water spray; use miticide or neem oil if severe
-
Remove infected lower leaves; improve air circulation; avoid overhead watering; apply copper fungicide or chlorothalonil; mulch to prevent soil splash
-
Remove infected foliage immediately; apply copper or chlorothalonil fungicide; ensure excellent airflow; avoid wet foliage
-
Remove affected leaves; improve airflow; apply fungicide; avoid overhead watering; clean garden debris
-
Spray with water; use insecticidal soap; apply neem oil; attract beneficial insects like ladybugs
Uses
Fresh eating and salads
CulinaryMidnight Bonanza tomatoes are prized for their sweet, complex flavor with fruity and slightly smoky notes. Their deep color and small size make them visually stunning in salads, on charcuterie boards, or eaten fresh off the vine. [source]
Cooking and preservation
CulinaryThese tomatoes can be roasted whole, halved for sauces, or slow-dried for concentrated flavor. Their natural sugars intensify with cooking, making them excellent for marinara sauces, jams, and sun-dried preparations. [source]
Nutritional health benefits
MedicinalHigh in lycopene, an antioxidant that may support heart health and reduce cancer risk. Also rich in vitamins C and A, potassium, and folate. The deep purple-black color indicates high anthocyanin content. [source]
Garden ornament and landscape
HouseholdThe dark purple-black fruits contrasting with green foliage make Midnight Bonanza an attractive ornamental plant for edible gardens, containers, or hanging baskets. Perfect for visual interest in vegetable gardens. [source]
Photography and seed saving
CraftThe stunning dark coloration makes these tomatoes highly photogenic for gardening content and social media. Home gardeners can save seeds from open-pollinated fruit for next season's crop. [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 completely dark purple-black with slight give to gentle pressure, typically 70-85 days after transplanting. Harvest in morning when cooler for best flavor and longer shelf life. Ripe fruits should have deep glossy black-purple coloration with a slight blush of red undertones. The fruit will continue to ripen if picked at the breaker stage (first showing color), though vine-ripened fruit has superior flavor. Continue harvesting regularly to encourage continued production throughout the season. Expect prolific harvests—a single healthy plant can produce 100+ cherry tomatoes per season.
Fun Facts
- 🌱 Midnight Bonanza was developed specifically to have deep anthocyanin pigmentation combined with cherry tomato productivity and disease resistance, making it a modern breeding achievement rather than a traditional heirloom variety.
- 🌱 The dark purple-black color develops in response to sun exposure and cooler nighttime temperatures; fruits grown in extremely hot climates may show more red undertones rather than pure black coloration.
- 🌱 This variety is notably indeterminate, meaning it will continue growing and producing fruit until killed by frost, potentially yielding 200+ fruits per plant in ideal 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 Midnight Bonanza Tomato planting timeline
Tell us your zip code and we'll calculate exactly when to start Midnight Bonanza 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 Midnight Bonanza Tomato timeline →