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With a few exceptions, all lots in our range of goods are regularly tested for quality and germination capacity in our seed diagnostics department (flower mixtures, green manure crops and seed discs/seed tapes are not tested). You can find the current test results here.
If no germination capacity is displayed after entering the lot number, the respective seed lot has already sold out. In this case, the stated packaging year can serve as a guide to expected germination capacity.
Please enter the 5- or 6-digit lot number in the search field above. The lot number is indicated either on the front or back of the seed packet as you can see below.
For professional growers: If the seed is calibrated or pelleted, please enter the corresponding letter after the lot number: S, M or L for calibration or E for pelleted seed.
Please note: For seed that you order directly from us, the current germination capacity, which we guarantee at the time of dispatch, is sometimes stated on the packet.
Depending on the packet format, you will find the lot number either stamped on the back or printed on the front.
You will find the year of packaging, coded as a letter, next to or below the lot number.
On our plain packets, the packaging year is coded as a letter next to the lot number (Fig. 1). We are currently transitioning our illustrated packets: since July 2024, the packaging date has been stamped directly onto the lower flap of the packet (Fig. 2). On older illustrated packets, the packaging year is still indicated by a letter code (Fig. 3).
You can also estimate the probable germination capacity of your seeds based on the year of packaging if they are stored correctly.
These year codes defined by the Federal Plant Variety Office represent the following packaging years:
S: 2025/2026
H: 2024/2025
W: 2023/2024
B: 2022/2023
G: 2021/2022
A: 2020/2021
4 to 5 years
Over 5 years
Over 5 years
Over 5 years
Over 5 years |
3 to 4 years
Over 5 years
Over 5 years |
4 to 5 years
3 to 4 years
Over 5 years
Over 5 years
Over 5 years
Over 5 years
4 to 5 years
4 to 5 years |
Over 5 years
Over 5 years
2 to 3 years
4 to 5 years
Over 5 years |
Over 5 years
Over 5 years
Over 5 years |
Over 5 years |
3 to 4 years |
2 to 3 years
Over 5 years |
4 to 5 years
3 to 4 years
2 to 3 years
3 to 4 years
Over 5 years
Over 5 years
4 to 5 years
3 to 5 years
4 to 5 years
4 to 5 years |
3 to 4 years |
4 to 5 years |
Over 5 years
We do not yet have any long-term results for Physalis seeds.
Over 5 years |
Over 5 years |
Over 5 years
3 to 4 years
3 to 4 years
Über 5 years
Over 5 years
Over 5 years
4 to 5 years
Over 5 years
Over 5 years
Over 5 years
Over 5 years
Over 5 years
The information on maintaining germination capacity is based on our experience.
Good to know
Seeds are living material and therefore have no defined expiry date. Depending on storage conditions, the plant species and the growing conditions during propagation, seeds can lose their vitality within a few months or maintain it for many years. We do not consider it sensible to state a best-before date on our seed packets, as we fear that otherwise good-for-use seed may be composted prematurely.
Instead, we offer you the option of retrieving the current germination capacity results from our diagnostics process using the lot number on the seed packets. If your seeds are stored properly, this result will give you a much better indication of their germination capacity than a less informative best-before date.
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