Club root tolerant


Sovereign is a high yielding, medium-tall forage kale with good club root tolerance.

In agronomic tests conducted by the SAC in Aberdeen, Sovereign was shown to have good dry matter yields and excellent leaf-to-stem ratio, thereby increasing stock utilisation and animal performance. Successfully tested for winter hardiness and keeping ability, it has the potential to maintain good quality production over a longer usage period.

Sovereign does not produce the large thick stems common to giant kales even when planted at lower density, therefore increasing palatability.

Seed Rate Pack Size Seed Treatment
2.5 - 7.5kg/ha 1kg Untreated & Cruiser SB Flea Beetle Treatment


Flea Beetle treated seed must be drilled and not broadcast. Flea beetle seed treatment greatly reduces the effect of flea beetle damage in the early stages of establishment, however regular monitoring of the crop is still required as further action may be needed in the event of heavy attack.

Stock should be introduced gradually over a two week period and an area of grassland should be available for animals to return to; water and hay or straw should also be made available. Please contact your supplier for further guidance.




Scale 1-9, where 9 = best or most pronounced

Dry Matter Yield
Crude Protein
Winter Hardiness
Club Root Tollerance
Brassica Fodder Crop for CSS
Kale Yield and Feed Quality
Average dry matter yield 8 - 10 tonnes/ha
Average fresh yields  60 – 65 tonnes/ha
Crude protein  16 - 17% fresh, 19 - 25% ensiled
Digestibility value 68D
Dry matter  14 - 16%
Metabolisable energy  10 - 11 MJ/kg DM
Sugars in DM  17%