How to Grow Sundial Red
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Sundial Red
Solanum lycopersicum 'Sundial Red'
vegetableSundial Red is a determinate cherry tomato variety known for its deep red color, sweet flavor, and compact growth habit. This modern cultivar produces abundant clusters of small, round fruits and is popular for container gardening and small-space cultivation. The plant's disease resistance and reliable production make it excellent for both home gardeners and commercial growers.
When should you plant Sundial Red in your zone?
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Example Sundial Red timeline · Pittsburgh, PA (Zone 6b)
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Plant Sundial Red
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 Sundial Red
Around Jun 21≈ 65 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Sundial Red dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9 as a warm-season annual; can be grown in zones 3-4 with careful timing and protection
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Seedling
2-3 weeksTiny plants with cotyledons (seed leaves) and emerging true leaves; fragile and pale green
Maintain soil moisture without waterlogging; provide 12-16 hours of bright light daily; keep temperature 70-75°F; thin to strongest seedlings
Transplant/Early Vegetative
3-4 weeks6-10 inch tall plants with 4-6 sets of true leaves; compact and bushy; ready for hardening off and transplanting outdoors
Gradually acclimate to outdoor conditions over 7-10 days; plant deep to encourage root development; stake or cage early
Vegetative Growth
3-4 weeks after transplantingPlant develops dense foliage with multiple branching stems; no flowers yet; compact, determinate form typical of this variety
Water consistently; apply balanced fertilizer every 2 weeks; prune suckers if desired for air circulation; maintain support structure
Flowering and Fruit Set
2-3 weeksYellow flowers appear in clusters; small green fruits develop rapidly; plant is vigorously productive
Reduce nitrogen fertilization; switch to phosphorus/potassium-rich fertilizer to boost fruiting; maintain consistent watering; pollinate flowers if needed
Fruiting and Harvest
4-8 weeks (continues until first frost)Abundant cherry-sized fruits mature from green to deep red; plant becomes heavy with fruit; growth slows as energy goes to ripening
Water deeply and consistently to prevent blossom-end rot and fruit cracking; harvest ripe fruits every 2-3 days; remove yellowing foliage for air flow
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick daily; encourage native parasitic wasps; use Bacillus thuringiensis (Bt) spray; neem oil
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Yellow sticky traps; insecticidal soap; neem oil; reflective mulch; strong water spray
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Increase humidity; spray with water; neem oil; miticide if severe
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Remove lower infected foliage; improve air circulation; mulch to prevent soil splash; copper fungicide; avoid overhead watering
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Remove affected foliage; improve ventilation; stake for air flow; fungicide spray; disinfect pruning tools
Uses
Fresh snacking and salads
CulinarySundial Red cherry tomatoes are sweet and flavorful, ideal for eating fresh off the vine or tossing into salads. Their bite-sized fruits make them perfect for appetizers, grain bowls, and garnishes. [source]
Cooking and preserving
CulinaryThese tomatoes can be roasted whole, slow-cooked for sauce, or preserved through canning and freezing. Their concentrated sweetness makes excellent tomato paste and conserves. [source]
Container and ornamental gardening
HouseholdSundial Red's compact determinate form and prolific fruit production make it ideal for pots, hanging baskets, and small spaces. The abundant red fruits provide both utility and visual appeal. [source]
Nutritional and health benefits
MedicinalTomatoes are rich in lycopene, an antioxidant linked to reduced cancer and heart disease risk. They also provide vitamin C, potassium, and other essential nutrients. [source]
Pollinator support
WildlifeTomato flowers attract bees and other pollinators, supporting garden biodiversity. Growing tomatoes in diverse plantings helps maintain healthy pollinator populations. [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 red and slightly soft to the touch; harvest every 2-3 days during peak season to encourage continued production; twist gently or use pruning shears; fruit ripens faster in warmth (70-85°F); can pick at breaker stage (first blush of color) if needed and ripen indoors
Fun Facts
- 🌱 Sundial Red is a relatively modern variety developed for improved disease resistance and reliable container production, reflecting contemporary gardening trends toward compact, high-yield cultivars.
- 🌱 Cherry tomatoes evolved in Central and South America and were miniaturized through selective breeding; modern varieties like Sundial Red can produce 200+ fruits per plant in ideal conditions.
- 🌱 Tomato plants can regenerate and continue producing into fall if protected from frost; some gardeners successfully bring them indoors or cover them to extend harvest until late autumn.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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