Profile

ASTONENERGY is an excellent grass variety for grazing mixtures, its yield and qualities coupled with superb disease resistance make it a must for all medium and long term grazing mixtures. Its aftermath D-value and good conservation yields mean it is also very suitable for dual purpose mixtures and will combine well with diploid ryegrasses and Hybrid ryegrasses. Its excellent crown rust resistance also makes it ideal for southern England.

Read more about the benefits of AstonEnergy! (PDF)

National listing/Official recommendation:
FR, AR, BY, CL, CO, IE, UK, UY

• exceptional forage quality and thus Milk Index variety
• high sugar content
• very palatable forage
• high digestibilty of the cell wall

General

Ploidy	tetraploid
Heading date	30/05
Recommended List status	S - Recommended for specific use
Year First Listed	2006

Ploidy	tetraploid
Heading date	30/05
Recommended List status	S - Recommended for specific use
Year First Listed	2006

Grazing management

Grazing yield (% of 9.03 t/ha)	95
Grazing D-value	78
ME Yield (% of 112 000 MJ/ha)	96
Ground Cover% (grazing)	65

Grazing yield (% of 9.03 t/ha)	95
Grazing D-value	78
ME Yield (% of 112 000 MJ/ha)	96
Ground Cover% (grazing)	65

Conservation management

Total yield year 1 (% of 15.83 t/ha)	100
1st and 2nd cut ME yield, first harvest year (% of 116 000 MJ/HA)	104
Total yield year 3 (% of 11.96 t/ha)	92
Total yield: Mean (% of 14.08 t/ha)	96
Ground Cover% (conservation year 3)	56

Total yield year 1 (% of 15.83 t/ha)	100
1st and 2nd cut ME yield, first harvest year (% of 116 000 MJ/HA)	104
Total yield year 3 (% of 11.96 t/ha)	92
Total yield: Mean (% of 14.08 t/ha)	96
Ground Cover% (conservation year 3)	56

Grazing seasonal growth

Early grazing yield (% of 1.37 t/ha)	93
Spring (% of 2.48 t/ha)	99
Early Summer (% of 3.14 t/ha)	97
Late Summer (% of 2.18 t/ha)	87
Autumn (% of 1.33 t/ha)	94

Early grazing yield (% of 1.37 t/ha)	93
Spring (% of 2.48 t/ha)	99
Early Summer (% of 3.14 t/ha)	97
Late Summer (% of 2.18 t/ha)	87
Autumn (% of 1.33 t/ha)	94

Conservation seasonal growth - year 1

1st cut (% of 6.76 t/ha)	99
1st cut D-Value	74.3
2nd cut (% of 3.28 t/ha)	102
2nd cut D-value	74.7
3rd cut (% of 2.75 t/ha)	105
4th+ cut (% of 2.95 t/ha)	94

1st cut (% of 6.76 t/ha)	99
1st cut D-Value	74.3
2nd cut (% of 3.28 t/ha)	102
2nd cut D-value	74.7
3rd cut (% of 2.75 t/ha)	105
4th+ cut (% of 2.95 t/ha)	94

Agronomic characters

Winter Hardiness (1-9, 1=poor 9=good)	7.2

Source: Recommended grass and clover lists for England and Wales 2025 / 2026

Winter Hardiness (1-9, 1=poor 9=good)	7.2

Source: Recommended grass and clover lists for England and Wales 2025 / 2026