Varietes from Rijk Zwaan
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60 products
60 products
Rex lettuce must be one of the most popular butterhead lettuces in production today. It is a thick-leaved summer type but often used year round. Excellent quality, slow-bolting and very strong against tip burn, with a nice, clean and well-closed base, its leaves are not brittle and it is easy to cut. Resistant to Bremia BL 1-12, 17, 18, 22.
Pelleted Seed
Lettuce seed from this supplier is untreated as standard.
Overview
Tacitus F1 is a medium-to-large framed romaine lettuce with excellent tipburn resistance and dark green, open hearts. Its pelleted, untreated seed is easy to sow and performs reliably across field, greenhouse, and hydroponic production systems year-round.
Key Performance Characteristics
- Frame size: Medium to large
- Leaf color: Dark green
- Heart: Open, well-filled
- Tipburn resistance: Excellent
- Bolting: Slow to bolt
- Production systems: Field, greenhouse, hydroponic — indoor and outdoor
- Seasons: Year-round production
Seed Specifications
- Seed treatment: Pelleted, untreated as standard
- Packaging: Available in 100, 250, 1,000, 5,000, 25,000 and 50,000 seed packs
Overview
Flandria F1 is a standard glasshouse butterhead lettuce for spring-to-autumn production. Slow-bolting and strong against tipburn, it forms a well-closed base and is well-suited to high-density greenhouse growing — reaching maturity faster than field varieties at higher plant populations.
Key Performance Characteristics
- Type: Butterhead (Bibb)
- Seasons: Spring, summer, autumn
- Bolting resistance: Slow bolting
- Tipburn resistance: Strong
- Base: Well-closed — clean presentation
- Production system: Glasshouse; smaller frame supports higher plant populations vs. field varieties
Disease Resistance
- HR: Bremia Bl:1–17, 21, 23
Seed Specifications
- Seed treatment: Pelleted, untreated as standard
- Packaging: Available in 100, 250, 1,000, 5,000, 25,000, 50,000 and 100,000+ seed packs
Also consider Frank F1, Rex F1, and Charles F1 butterhead varieties.
Overview
Rouxai F1 is a bright cherry-red oakleaf lettuce with intense color on both sides of the leaf — making it a standout variety for fresh-cut, retail, and mixed salad applications. Compact and upright with a small leaf shape, Rouxai is well-suited to year-round production in cooler growing environments.
Key Performance Characteristics
- Type: Red oakleaf
- Color: Intense cherry-red on both sides of the leaf
- Leaf shape: Small, compact — ideal for processing and fresh-cut
- Plant habit: Upright
- Seasons: Year-round in cooler areas
- Best use: Fresh-cut, mixed salad, retail
Seed Specifications
- Seed treatment: Pelleted, untreated as standard
- Packaging: Available in 100, 250, 1,000, 5,000, 25,000, 50,000 and 100,000+ seed packs
To be phased out — limited quantities remaining. Browse current lettuce varieties
Amadeus F1 is a Cos/romaine lettuce with a uniform, upright frame. The head is well closed and uniform in shape, producing more leaves than comparable varieties.
Unlike field varieties widely sold for greenhouse use, Amadeus is smaller-framed — allowing for higher plant populations with exceptional growth rates and faster maturity.
- Uniform, upright romaine frame
- Well-closed, consistent head shape
- Higher leaf count than comparable varieties
- Suited to high-density greenhouse production
- HR Bl: 1-17, 21, 23
Pelleted seed. Lettuce seed from this supplier is Untreated as standard.
Overview
Bologna F1 is a well-established Long Dutch (English) cucumber with excellent heat tolerance, strong powdery mildew resistance, and good strength against Botrytis and Mycosphaerella. A vigorous, highly productive variety suited to summer cultivation in Mediterranean climate zones, Bologna produces long, straight, dark fruit that is resistant to tip burn.
Key Performance Characteristics
- Fruit length: 33–39 cm (13–15.5 inches)
- Fruit quality: Long, straight, dark — excellent quality
- Heat tolerance: Excellent
- Tip burn resistance: Resistant
- Powdery mildew: Resistant
- Botrytis / Mycosphaerella: Strong resistance
- Yield: Very productive
- Best use: Summer cultivation, Mediterranean climate zones
Seed Specifications
- Seed treatment: Thiram treated (TMTD) as standard
- Packaging: Available in 25, 50, 100, 1,000 and 5,000 seed packs
Also consider Verdon F1 and Durance F1 long Dutch cucumber alternatives.
Overview
Lalique F1 is an exceptionally crisp, juicy crystal lettuce from Rijk Zwaan with strong disease resistance and year-round production capability. Its unique texture and visual appeal make it a premium choice for hydroponic growers supplying salad, burger, and sandwich markets. Pelleted, untreated seed supports reliable indoor and outdoor production.
Key Performance Characteristics
- Type: Crystal / Frillice / Multileaf
- Texture: Exceptionally crisp and juicy
- Visual appeal: Distinctive crystal appearance — premium retail presentation
- Best use: Hydroponic, salad, burger, sandwich applications
- Seasons: Year-round production
- Production systems: Indoor and outdoor
Seed Specifications
- Seed treatment: Pelleted, untreated as standard
- Packaging: Available in 100, 250, 1,000, 5,000, 25,000, 50,000 and 100,000+ seed packs
Overview
More inventory CARMESI due +/- Mid September 2026
Carmesi F1 is a triple-red Lollo Rossa lettuce with exceptional vigor and extended Bremia resistance. Recommended for both hydroponic and outdoor production, Carmesi is particularly well-suited to the fresh-cut industry — delivering higher yields for growers and better processing efficiency for fresh-cut operations, with optimal characteristics for mechanical handling.
Key Performance Characteristics
- Type: Triple-red Lollo Rossa
- Color: Intense red — high visual appeal
- Vigor: Exceptional
- Best use: Fresh-cut industry, hydroponic, outdoor production
- Processing: Optimal characteristics for mechanical handling and fresh-cut efficiency
- Yield: Higher yield potential vs. standard Lollo Rossa varieties
Disease Resistance
- HR: Bremia Bl:16–27, 30–32 / Fol:1 / Nr:0
Seed Specifications
- Seed treatment: Pelleted, untreated as standard
- Packaging: Available in 100, 500, 1,000, 5,000, 25,000, 50,000 and 100,000+ seed packs
Note: Alexandria F1 is being discontinued. Alternative: Cecilia F1.
Overview
Alexandria F1 is a summer butterhead lettuce for indoor cultivation with good size, strong tipburn and bolting resistance, and easy cutting. Suitable for NFT, soil-grown, and floating production systems, Alexandria is a reliable long-day variety for greenhouse growers.
Key Performance Characteristics
- Type: Butterhead
- Day length: Long-day variety
- Tipburn resistance: Very strong
- Bolting resistance: Very strong
- Harvest: Very easy to cut
- Production systems: NFT, soil, floating
- Plant frame: Smaller — supports higher plant populations vs. field varieties
Seed Specifications
- Seed treatment: Pelleted, untreated as standard
- Packaging: Available in 100, 250, 1,000, 5,000 and 25,000 seed packs
To be discontinued — alternative is GILMORE
Skyphos F1 is a large-size red butterhead with ruby color halfway down the leaf and brilliant green color contrast towards the core. Great texture, slow bolting, and very attractive appearance — suitable for both processor and carton markets.
- Color: Ruby red outer leaves, bright green core
- Size: Large
- Bolting: Slow
- Use: Processor and carton markets
- HR: Bl:1-26 / Nr:0
- IR: LMV
Pelleted Seed
Lettuce seed from this supplier is untreated as standard.
