Hybrid Forage Brassica
Sub Zero Kale
A cold-tolerant forage brassica for productive seasonal grazing
Sub Zero is a hybrid forage brassica developed for high forage production, improved cold tolerance and extended seasonal grazing. Its leafy growth and ability to recover after properly managed grazing make it a strong option for livestock systems, forage mixtures and other plantings where productive cool-season brassica forage is desired.
Forage Characteristics
Why Plant Sub Zero?
Sub Zero combines productive leafy forage with improved cold-weather performance and the potential to recover following properly managed grazing.
High Forage Production
Produces substantial above-ground forage for livestock and other grazing-oriented applications.
Cold Tolerance
Selected for improved cold-weather performance, helping extend the usefulness of forage later into the cool season.
Regrowth Potential
Forage kale and related brassicas can recover after grazing when adequate residual leaf area and recovery time are maintained.
Mix Compatibility
Can be used as a brassica component alongside cereals, grasses, legumes and other forage species in diversified grazing mixtures.
Where It Fits
Best Uses for Sub Zero
Sub Zero is best positioned as a livestock forage brassica rather than a vegetable kale. Its combination of leafy biomass, cold tolerance and grazing recovery makes it especially useful where growers want to extend seasonal forage availability.
Establishment & Management
Managing Sub Zero Forage Brassica
Successful forage brassica production depends on good establishment, adequate fertility and moisture, and grazing management that protects the plant's ability to recover.
Establishment
As a small-seeded brassica, Sub Zero should be planted relatively shallow with good seed-to-soil contact. Adequate soil moisture during germination supports uniform stand establishment.
Growing Window
Sub Zero is suited to cool-season forage production and is valued for its ability to remain productive under colder conditions than many warm-season forage options.
Grazing Height
Avoid grazing forage kale excessively low. Maintaining adequate residual plant material helps preserve the growing point and improves the likelihood of regrowth.
Recovery Period
Where regrowth is desired, rotational grazing and an adequate recovery period are preferable to continuous heavy grazing.
Grazing Management
Built for More Than One Grazing Opportunity
Sub Zero is marketed as a forage brassica with multiple-grazing potential. That advantage depends on management: avoid removing the crop too close to the ground and allow sufficient recovery between grazing periods. Proper residual height and rest are important for maintaining productive regrowth.
Looking for Sub Zero Kale Seed?
Contact Weaver Seed for current availability, quantities, packaging or help incorporating Sub Zero into a forage, grazing, wildlife or custom seed mixture.
Contact Weaver Seed