Sample Sizes for Certification

In general, we need 400 healthy, full seeds as reference sample. Please send the seed volumes on grams as listed in the table below, or send a count of 400.

Required sample sizes for the examination of the germination capacity are listed in the table below. If you would like to attain certification, please note that we receive enough seeds. Please add the quantity indicated for germination tests and certification. Unless stated otherwise, amounts given are in grams.

Tree Species


Abies Fir, all species 20 g
Acer campestre Field Maple 20 g
Acer platanoides L. Norway Maple 100 g
Acer pseudoplatanus L Sycamore Maple 50 g
Alnus Alder, all species 5 g
Betula spec. Birch, all species 3 g
Carpinus betulus L. Common Hornbeam 20 g
Castanea sativa Mill. Chestnut 2.000 g
Fagus sylvatica L. Common Beach 100 g
Fraxinus excelsior L. Common Ash 50 g
Larix Larch, all species 5 g
Malus communis Common Apple 10 g
Picea Spruce, all species 5 g
Pinus Pine, all species 10 g
Prunus avium L Wild or Sweet Cherry 100 g
Pseudotsuga menziesii Douglas Fir 5 g
Pyrus communis European Pear 10 g
Quercus spec. Oak, all species 1.500 g
Robinia pseudoacacia L. Black Locust 30 g
Sorbus aucuparia Rowan or European Mountain Ash 5 g
Sorbus torminalis Wild Service Tree 10 g
Tilia cordata Mill. Small-leafed Lime 20 g
Tilia platyphyllos Scop Large-leafed Lime 50 g
Ulmus Elm, all species 5 g

Shrub Species


Berberis vulgaris European Barberry 5 g
Cornus mas European Cornel 100 g
Cornus sanguinea Common Dogwood 50 g
Corylus Hazels 800 g
Euonymus europaea Common Spindle 50 g
Ilex aquifolium European Holly 5 g
Ligustrum vulgaris Wild Privet 10 g
Lonicera Fly Honeysuckle 10 g
Prunus spinosa Blackthorne or Sloe 100 g
Rhamnus Buckthorn, all species 50 g
Rosa canina Dog Rose 20 g
Sambucus Elderberry, all species 10 g
Sorbus Rowan, all species 20 g
Viburnum Viburnum, all species 20 g


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Zuletzt geändert am 21. September 2020