The author explained what five mistakes can reduce seed germination by almost 90% in the first year.
Reliable seed storage is a guarantee that you will be able to save the harvest for the whole season and even longer. Experts emphasize: even small mistakes can lead to the fact that the seeds lose their viability even before sowing, although visually they look completely normal.
According to the specialist, there are five critical factors that gardeners often overlook: excessive humidity, excessive temperature, exposure to light, improper packaging and lack of labeling.
Why seeds die before sowing
Temperature control, humidity control and protection from light are the three main factors that have the greatest influence on seed preservation. An expert from the “Garden at Home” channel explains why the germination of some seeds drops every year even before sowing.
A seed is a living organism in a state of rest (anabiosis). Moisture can trigger early germination or mold, heat accelerates biochemical reactions and depletes the seed’s energy reserves, and ultraviolet rays damage the plant’s DNA.
For these reasons, seed germination can be reduced by up to 90% already in the first year.
How to store seeds to keep them viable
For long-term storage, the seeds must be dried very well until they are completely hard and brittle, and then placed in airtight glass jars or sealed foil (mylar) bags. They protect against light, air and moisture.
The dishes must be completely dry.
Additionally, desiccants help to control moisture – silicone gel (silica gel) or rice covered with a napkin.
The best storage place is the main shelf of the refrigerator, where the temperature reaches about +4 °C. It is important not to keep the seeds on the door, because that is where the temperature fluctuates the most.
The freezer can also be used for long-term storage, but only if the seeds are perfectly dry and thawed very slowly.
Optimal storage conditions and expiration dates
The expert also emphasizes the importance of correct labeling: it is necessary to write the exact variety and date of collection on the package. The seeds of different cultures preserve their germination differently:
- parsnips and onions – 1-2 years,
- tomatoes, cucumbers, pumpkins – 5-10 years,
- for some cultures even longer.
To check whether the seeds are still viable, experienced gardeners advise to test their germination on a wet napkin.
The expert also warns: paper bags are not suitable for long-term storage, as they absorb moisture and can damage even high-quality seeds.
I am Jovita, one of the authors of Hitas.lt articles. I have loved to cook since I was a child and I am glad that my mother allowed me to experiment in the kitchen. Favorite dishes are, without a doubt, desserts. I also like to “spin” at home, so I try to provide readers with not only interesting recipes, but also useful tips for home cooking.
