Begonias are the most commercially important shade annual in the landscape industry. No other flowering plant delivers the same combination of season-long color, low maintenance, heat tolerance, and adaptability to low-light conditions at the scale that commercial landscapers, municipal contractors, and institutional grounds managers need. But with dozens of series across four distinct begonia types, choosing the right bulk begonia seeds for your program requires knowing what each type does — and where it performs best.
This guide covers every major begonia type and series available in bulk seed form, with germination requirements, spacing recommendations, USDA zone planting dates, and series-by-series comparisons to help commercial growers build a profitable, high-performance shade landscape program.
The Four Types of Begonia for Commercial Landscape Production
Commercial begonia production centers on four main types, each with distinct growth habits, light requirements, and landscape applications.
1. Wax Begonias (Begonia semperflorens) — The Landscape Workhorse
Wax begonias are the dominant begonia in commercial landscape production. They're compact, free-flowering, heat-tolerant, and available in the widest range of series and colors. They perform in full shade, part shade, and even full sun in cooler climates — making them the most versatile bedding plant in the landscape contractor's toolkit.
Key characteristics:
- Height: 6–12 inches depending on series
- Light: Full shade to full sun (varies by series)
- Days to bloom from transplant: 60–75 days
- Best use: Mass bedding, edging, container color, municipal plantings, institutional grounds
- Foliage options: Green leaf and bronze/chocolate leaf — bronze leaf types are more sun-tolerant
Top Wax Begonia Series for Commercial Landscapers:
- Megawatt™ Series — The largest-flowered wax begonia series available. Massive blooms on vigorous plants with exceptional heat and humidity tolerance. Available in Pink Bronze Leaf, Pink Green Leaf, Red Bronze Leaf, Red Green Leaf, Rose Bronze Leaf, Rose Green Leaf, and White Green Leaf. The bronze leaf options are particularly strong in sunny exposures. → Shop Megawatt™ Red Bronze Leaf
- Whopper® Series — Tall, large-flowered wax begonia ideal for high-impact landscape beds and large containers. Excellent heat tolerance. Available in Pink Green Leaf, Red Bronze Leaf, Red Green Leaf, Rose Bronze Leaf, Rose Green Leaf, and White Green Leaf. → Shop Whopper® Red Bronze Leaf
- Dragon Wing® Series — A cane-type begonia with large, wing-shaped leaves and cascading clusters of blooms. Exceptional heat and drought tolerance. Ideal for large containers, hanging baskets, and landscape beds. Available in Pink, Pink Bronze Leaf, Red, Red Bronze Leaf, and White. → Shop Dragon Wing® Red
- BabyWing® Series — A compact Dragon Wing type ideal for 4-inch and 6-inch container programs and tight landscape edging. Available in Bicolor, Pink, Red, Red Bronze Leaf, White, and White Bronze Leaf. → Shop BabyWing® Red
- Viking Series — Vigorous, large-leaved wax begonia with strong landscape performance. Available in Pink Chocolate Leaf, Pink Green Leaf, Red Bronze Leaf, Red Chocolate Leaf, Red Green Leaf, Rose Bronze Leaf, and White Green Leaf. Also includes Viking Explorer and Viking Coral Flame variants. → Shop Viking Red Bronze Leaf
- Hula™ Series — A high-performance wax begonia bred for heat and humidity. Excellent for Southern landscapes and high-summer programs. Available in Blush, Mix, Pink, Red, Red White Bicolor, and White. → Shop Hula™ Red
- Limitless Series — A large-flowered, vigorous wax begonia available in 1,000-seed packs. Available in Cream Shades, Mix, Orange, Dark Rose, Dark Red, Sorbet, Sunrise, and Sunset. → Shop Limitless Mix (1,000 Seeds)
- Senator IQ Series — Uniform, heat-tolerant wax begonia for landscape and container programs. Available in Mix, Pink, Rose, Rose Bicolor, Deep Rose, Scarlet, and White.
- Sprint Plus Series — Fast-finishing wax begonia for tight production schedules. Available in Maxi Mix, Orange, Pink, Red, Rose, and White.
- Encore IV Series — Reliable, uniform wax begonia for mass landscape plantings. Available in Mix, Pink, Red, Rose, and White.
- Harmony Plus Series — Compact, free-flowering wax begonia for bedding and container programs. Available in Mix, Pink, Rose, Scarlet, and White.
- Cocktail Series — A classic compact wax begonia with bronze foliage. Available in Brandy, Gin, Mix, Tequila, Vodka, and Whiskey — all bronze leaf types with strong sun tolerance.
- Bada Bing / Bada Boom Series — Compact, early-blooming wax begonias ideal for 4-inch programs and tight edging. Available in Mix, Pink, Rose, Scarlet, and White for both series.
- Ambassador Series — A dependable, uniform wax begonia for landscape and retail programs. Available in Mix, Pink, Rose, Scarlet, and White.
- Super Olympia Series — Heat-tolerant wax begonia with strong field performance. Available in Mix, Pink, Red, Rose, and White.
- Prelude Plus Series — Early-blooming, compact wax begonia for spring retail programs. Available in Mix, Pink, Rose, Scarlet, and White.
- Nightlife Series — Vigorous wax begonia with strong heat performance. Available in Mix, Pink, Red, Deep Rose, and White.
- Tophat Series — Compact, mounded wax begonia for tight landscape edging and 4-inch programs. Available in Pink Green Leaf, Rose Bicolor Green Leaf, Scarlet Green Leaf, and White Green Leaf.
- Big Series — Large-flowered wax begonia with both green and bronze leaf options. Available in Pink Bronze Leaf, Deep Pink Green Leaf, Pink Green Leaf, Red Bronze Leaf, Red Green Leaf, Rose Bronze Leaf, Deep Rose Bronze Leaf, White Bronze Leaf, White Green Leaf, and Rose Green Leaf.
- Groovy Series — Compact, free-flowering wax begonia for container and bedding programs. Available in Mellow Yellow, Mix, Orange, Red, Rose, and White.
- Funky Series — Vigorous, heat-tolerant wax begonia. Available in Orange, Pink, Light Pink, Red, Scarlet, and White.
2. Tuberous Begonias — Premium Color for Shade Containers and High-End Landscapes
Tuberous begonias produce the largest, most spectacular blooms of any begonia type — rivaling roses in size and elegance. They're the premium choice for high-end residential landscapes, upscale container programs, and any application where maximum visual impact in deep shade is the goal. They require more careful production management than wax begonias but command significantly higher retail prices.
Key characteristics:
- Height: 10–18 inches depending on series
- Light: Partial to full shade — does not tolerate direct afternoon sun
- Days to bloom from transplant: 90–120 days (longer lead time required)
- Best use: Premium shade containers, high-end residential landscapes, patio programs, hanging baskets (trailing types)
- Foliage options: Green leaf and Mocca (dark bronze) leaf
Top Tuberous Begonia Series for Commercial Growers:
- Nonstop Series — The most widely grown tuberous begonia in commercial production. Double flowers, strong uniformity, and excellent color range. Available in Orange, Peach Shades, Pink, Red, Deep Rose, Rose Picotee, Salmon, Deep Salmon, Sunset, White, Yellow Red Back, and Yellow. Also includes Nonstop Joy and Nonstop Mocca sub-series with dark foliage options. → Shop Nonstop Mix | → Shop Nonstop Mocca Mix
- Illumination Series — A trailing tuberous begonia ideal for hanging baskets and window boxes. Large, double blooms cascade beautifully. Available in Apricot Shades, Golden Picotee, Lemon, Mix, Orange, Rose, Salmon Pink, Scarlet, and White. → Shop Illumination Mix
- Bliss Series — A compact tuberous begonia with strong uniformity and heat tolerance for a tuberous type. Available in Mix, Orange, Pink Shades, Deep Red, Scarlet, White, and Yellow. → Shop Bliss Mix
- Stonehedge Series — A tuberous begonia with bronze leaf options for added foliage interest. Available in Light Pink Bronze Leaf and Rose Bronze Leaf.
3. Specialty and Foliage Begonias — High-Value Differentiators
Beyond wax and tuberous types, several specialty begonias offer unique foliage and form that command premium pricing and differentiate your program from competitors.
- Gryphon — A large, bold foliage begonia with dramatic silver-marked leaves. Grown primarily for foliage impact in shade containers and landscape beds. Excellent for high-end commercial programs. → Shop Begonia Gryphon
- Bossa Nova Series — A trailing begonia with semi-double blooms. Excellent for hanging baskets and mixed containers. Available in Mix, Night Fever Papaya, Night Fever Rosso, Orange, Red Shades, Rose, Pure White, and Yellow.
- Bowler Series — A specialty begonia with bronze leaf options for unique foliage contrast. Available in White Bronze Leaf.
- Maestro Plus — A reliable mix begonia for landscape and container programs.
Begonia Germination: The Most Critical Step in Commercial Production
Begonia seeds are among the smallest of any bedding plant — and the most sensitive to germination conditions. Getting germination right is the single most important factor in a successful commercial begonia program. All commercial begonia seed is sold as pelleted seed to make handling practical at scale.
- Optimal germination temperature: 75–78°F soil temperature — do not exceed 80°F
- Germination time: 7–14 days at optimal temperature
- Seeding depth: Surface sow only — begonia seeds require light to germinate. Do not cover with media.
- Humidity: Maintain 95–100% relative humidity during germination using a humidity dome or mist system
- Tray recommendation: 512-cell or 288-cell plug trays for wax begonias; 128-cell for tuberous types
- Bottom heat: Essential — use heat mats or a heated germination chamber
- Light during germination: Provide low light (100–200 foot-candles) during germination; increase to full greenhouse light after emergence
- Transplant timing: 10–14 weeks after seeding for wax begonias; 14–18 weeks for tuberous types
Pro tip: Never let the germination media dry out during the first 14 days. Begonia seeds that dry out after germination begins will not recover. Use a fine mist — never overhead watering — until seedlings are well established.
Spacing Guide for Commercial Begonia Landscape Production
| Begonia Type / Series | Landscape Spacing | Container Size | Plants Per Flat | Notes |
|---|---|---|---|---|
| Compact wax (Bada Bing, Tophat, Cocktail) | 8"×8" | 4" to 6" | 48–72 per flat | Ideal for tight edging and small-scale beds |
| Standard wax (Senator IQ, Sprint Plus, Encore IV) | 10"×10" | 6" to 8" | 36–48 per flat | Most common landscape spacing for mass beds |
| Large wax (Megawatt™, Whopper®, Viking) | 12"×12" | 8" to 10" | 24–36 per flat | Fewer plants needed; higher visual impact per plant |
| Dragon Wing® / BabyWing® | 12"×18" | 10" to 14" | 12–18 per flat | Vigorous growers; allow room for spread |
| Tuberous (Nonstop, Bliss) | 10"×10" to 12"×12" | 8" to 12" | 18–24 per flat | Premium spacing for high-end programs |
| Trailing tuberous (Illumination) | Hanging baskets only | 10" to 14" basket | 1–3 per basket | Allow to trail; do not pinch |
| Gryphon (foliage) | 14"×14" to 18"×18" | 10" to 14" | 9–12 per flat | Grown for foliage; space generously |
When to Start Bulk Begonia Seeds by USDA Hardiness Zone
Begonias are frost-sensitive and require a long lead time from seed to transplant-ready plug. Plan your seeding dates carefully — especially for tuberous types, which need 14–18 weeks of greenhouse time.
| USDA Zone | Start Wax Begonia Seeds | Start Tuberous Seeds | Transplant Outdoors | Notes |
|---|---|---|---|---|
| Zone 3–4 (MN, ND, MT) | Late February – Early March | Early January | Late May – Early June | Short season — prioritize wax types; tuberous may not reach full potential |
| Zone 5–6 (IL, OH, PA, OR) | Mid February – Early March | Late December – January | Mid May | Standard Midwest/Northeast schedule; wax begonias perform well all season |
| Zone 7–8 (VA, NC, TN, PNW) | Early – Mid February | Mid December – January | Late April – Early May | Excellent season length; Dragon Wing and Megawatt™ thrive in summer heat |
| Zone 9–10 (CA, TX, FL, AZ) | December – January | November – December | March – April | Two production cycles possible; avoid peak summer heat for tuberous types |
| Zone 11+ (HI, South FL) | Year-round | September – February | Year-round | Manage heat stress; wax types most resilient year-round |
Green Leaf vs. Bronze Leaf Begonias: Which Should You Grow?
One of the most practical decisions in commercial begonia production is choosing between green leaf and bronze (chocolate) leaf varieties. Both are available across most major series and the choice significantly affects performance in different landscape conditions.
- Green leaf begonias perform best in shade and part shade. They produce more flowers per plant in low-light conditions and have a brighter, fresher appearance in shaded beds. Best for: north-facing beds, under tree canopy, shaded courtyards.
- Bronze/chocolate leaf begonias are more sun-tolerant and heat-resistant. The darker foliage contains more anthocyanins, which protect the plant from UV stress. Best for: sunny exposures, south-facing beds, high-heat urban landscapes. The Cocktail Series, Megawatt™ Bronze Leaf, Whopper® Bronze Leaf, and Viking Bronze Leaf are the top performers in full sun.
For large commercial programs, ordering both leaf types and matching them to site conditions is the most professional approach — and gives your landscape designs more visual depth.
Related Posts for Commercial Landscapers and Growers
- Bold Blooms for Shady Spaces: Plant Begonia Seeds in Bulk
- Begonia Seeds Dragon Wing® Red: Bold Color for Baskets, Containers, and Landscapes
- Begonia Megawatt™ Red Bronze Leaf: Bold Color for All-Season Gardens
- Best Low-Maintenance Flower Seeds for Landscapers
- Bulk Flower Seeds for Growers: Best Varieties to Start in Trays
Frequently Asked Questions: Bulk Begonia Seeds for Shade Landscapes
What is the best begonia for full shade commercial landscapes?
For deep shade, green leaf wax begonias are the top performers. The Megawatt™ Green Leaf, Whopper® Green Leaf, and Dragon Wing® Pink and Red series all perform exceptionally well in full shade conditions. For premium shade containers, the Nonstop Series tuberous begonias deliver the most spectacular blooms in low-light settings.
How long does it take to grow begonias from seed to transplant-ready plugs?
Wax begonias require 10–14 weeks from seeding to transplant-ready plug. Tuberous begonias require 14–18 weeks. This long lead time is the most important planning factor in commercial begonia production — seed your begonias earlier than you think you need to.
What is the difference between Megawatt™ and Whopper® begonias?
Both are large-flowered wax begonias bred for commercial landscape use. Megawatt™ produces the largest individual blooms and is known for exceptional heat and humidity tolerance. Whopper® grows slightly taller and is known for its vigorous, upright habit and strong performance in both shade and part sun. Both are available in green and bronze leaf options. For most commercial programs, either series is an excellent choice — the decision often comes down to height preference and specific site conditions.
Can begonias be grown in full sun?
Bronze and chocolate leaf wax begonias — including the Cocktail Series, Megawatt™ Bronze Leaf, Whopper® Bronze Leaf, and Viking Bronze Leaf — can tolerate full sun in most climates, especially in Zones 5–7. In Zones 8–10, even bronze leaf types benefit from afternoon shade during peak summer heat. Green leaf begonias should be kept in shade or part shade in all zones.
How many begonia plants do I need per square foot for landscape beds?
For standard wax begonias at 10"×10" spacing, plan on approximately 1.4 plants per square foot. For compact types at 8"×8", plan on 2.25 plants per square foot. For large types like Megawatt™ and Whopper® at 12"×12", plan on approximately 1 plant per square foot. Always calculate your tray needs based on your target spacing and add 10–15% for losses during production.
Are pelleted begonia seeds worth the premium for commercial production?
Yes — for commercial production, pelleted begonia seeds are essential. Raw begonia seeds are extremely small (approximately 40,000–70,000 seeds per gram) and nearly impossible to handle accurately at scale. Pelleted seeds are coated to a uniform size that allows precise placement in 512-cell or 288-cell plug trays, dramatically improving germination uniformity and reducing seed waste. All begonia seeds in our catalog are available in pelleted form.
Where can I buy bulk begonia seeds for commercial landscape production?
You can shop our full range of bulk begonia seeds — wax, tuberous, Dragon Wing, and specialty types — all available in pelleted form at Trailing Petunia Bulk Seeds. For smaller packs and home garden quantities, visit www.trailingpetunia.com.