How to Grow Balcon Bicolor Petunia
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Balcon Bicolor Petunia
Petunia ×hybrida 'Balcon Bicolor'
flowerBalcon Bicolor is a striking trailing petunia cultivar known for its vibrant two-toned flowers featuring contrasting colors—typically purple with white or pink striping. This cascading variety is ideal for hanging baskets, window boxes, and container gardens, producing abundant blooms throughout the growing season.
When should you plant Balcon Bicolor Petunia in your zone?
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Example Balcon Bicolor Petunia timeline · Pittsburgh, PA (Zone 6b)
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Plant Balcon Bicolor Petunia
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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First Balcon Bicolor Petunia blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Balcon Bicolor Petunia dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-10; grown as annual in cooler zones, perennial in warm zones
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Get my Balcon Bicolor Petunia timeline →Growth Stages
Seed Germination
7-14 daysTiny seedlings emerge with cotyledons (seed leaves). Plants are very delicate and slow-growing at this stage.
Keep soil moist but not soggy. Maintain warmth (70-75°F). Provide bright light once sprouted. Do not cover seeds or bury them.
Seedling Development
2-3 weeksFirst true leaves appear; seedlings grow slowly and remain compact. Root system is establishing.
Maintain consistent moisture and warm temperatures. Begin light feeding with diluted fertilizer. Thin seedlings or transplant to individual pots when 2-3 inches tall.
Vegetative Growth
3-4 weeks before floweringPlant develops sturdy stems and expanding foliage. Trailing growth habit becomes apparent. Plant is gaining size and branch structure.
Pinch growing tips when 4-6 inches tall to encourage branching and bushier growth. Continue regular watering and feeding every 1-2 weeks. Harden off before transplanting outdoors.
Flowering
6-16 weeks (or until frost)Abundant two-toned flowers appear in clusters at branch tips. Bicolor pattern is fully visible. Cascading growth becomes pronounced with flowers trailing downward.
Deadhead spent flowers regularly to encourage continuous blooming. Fertilize weekly with bloom-promoting fertilizer (higher phosphorus). Water consistently and deeply.
Mature/Peak Bloom
Until frost or end of seasonPlant reaches full trailing length with dense flowering throughout. Foliage may become less visible beneath abundant blooms. Established deep root system in containers.
Maintain vigorous deadheading. Feed weekly. Watch for pests and diseases. In extreme heat, provide afternoon shade to prevent flower fade. Trim back if plant becomes leggy.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with insecticidal soap or neem oil; use yellow sticky traps; encourage beneficial insects
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Increase humidity; spray with water; use miticide or neem oil if severe
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Spray with strong water jet; use insecticidal soap or horticultural oil; release ladybugs
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Hand-pick; use Bacillus thuringiensis (Bt); apply spinosad if needed
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and
Remove by hand; use beer traps; apply food-grade diatomaceous earth; avoid overwatering
Uses
Container and Hanging Garden Display
CraftBalcon Bicolor is specially bred for cascading growth in hanging baskets and window boxes, creating dramatic floral displays with its unique two-toned blooms. Its trailing habit makes it ideal for creating colorful vertical gardens. [source]
Cut Flowers and Arrangements
HouseholdAttractive petunia blooms can be cut for fresh indoor arrangements and vases, providing weeks of colorful decoration. The distinctive bicolor pattern adds visual interest to floral designs. [source]
Pollinator Attraction
WildlifePetunias attract bees, butterflies, and hummingbirds through their vibrant colors and abundant nectar. Growing Balcon Bicolor supports pollinator populations in gardens and landscapes. [source]
Landscape Design and Color Accent
HouseholdThe striking bicolor pattern makes this variety a focal point in garden beds, borders, and mixed containers. Used to add contrast and visual drama to garden designs. [source]
Harvest Tips
Petunias are ornamental flowers, not harvested for consumption. Deadhead (remove) spent blooms regularly by pinching off faded flowers just below the calyx to extend blooming season. Cut stems for fresh arrangements when flowers are fully open; place immediately in water.
Fun Facts
- 🌱 The name 'Balcon' (French for 'balcony') reflects the petunia's traditional use adorning European balconies and window boxes.
- 🌱 Petunias are related to tobacco, potatoes, and tomatoes—all members of the Solanaceae family.
- 🌱 Petunia flowers can last several weeks on the plant and often bloom prolifically from early summer until the first hard frost, sometimes producing hundreds of flowers.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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