Humboldt lettuce — an early variety of leafy lettuce from the Salanova series, developed by breeders of Rijk Zwaan. This multi-leaf green variety is suitable for cultivation in open ground and hydroponics. The plant demonstrates good adaptability to various soil types and resistance to temperature fluctuations, making it suitable for spring and autumn plantings. For optimal harvest, seedlings should be transplanted directly into the ground.
The lettuce rosette is upright, with intensely green, deeply lobed leaves that form a mass of small, uniformly sized leaves. This structure allows the variety to be used both for slicing and for whole rosette harvest. Due to its upright shape and compactness, the variety withstands high planting density and is suitable for mechanical harvesting, significantly simplifying harvest and increasing production efficiency.
Humboldt lettuce exhibits high resistance to downy mildew and leaf lettuce aphid, as well as moderate resistance to lettuce mosaic virus. Additionally, the variety shows immunity to diseases, rot, and pests, reducing the need for chemical protection and promoting the production of ecologically clean produce.
