Discover how to successfully germinate any type of seed. Learn about light germinators, dark germinators, cold germinators, and the right care for healthy and strong results.
Why the right conditions for seeds are important
Germinating a seed seems simple, but each variety requires specific care. While some seeds germinate in no time with minimal attention, others require specific conditions such as light, darkness, or cold treatment. By simulating the natural environment of the product (seed), you increase the chances of successful germination.
The most important factors in seed germination
1. Temperature
The right temperature is a crucial factor in germination. It affects not only the germination rate but also the speed. Each seed type reacts differently: some varieties germinate faster in warm conditions, while others require cooler temperatures.
2. Humidity
A seed needs to absorb moisture to start germinating. Too little moisture will halt the process, while too much moisture can be harmful. For larger seeds, soaking them beforehand helps them germinate faster and more evenly.
3. Light germinators
These seeds need light to germinate. They are often small and should not be placed deeply underground. Sow them shallowly, press them down lightly, and cover with vermiculite if necessary. This retains moisture and allows light to pass through.
Examples include , and lobelia.
4. Dark germinators
Unlike light germinators, these species require darkness. Cover the seeds with a thin layer of soil so that light doesn't inhibit their growth. Examples include cyclamen, digitalis, and phlox.
5. Cold germinators
Some products (seeds) require a cold treatment to break their dormancy. This process is called stratification. Place the seeds in moist sand in the refrigerator for a few weeks, or cover a seed tray with snow to simulate nature.
6. Air and soil structure
A light, well-drained soil is essential. Compacted or overly wet soil hinders germination and can cause seed rot. Choose a loose, oxygen-permeable soil mix.
Product, seed and form: the right combination for success
Seed germination is all about finding the right balance between temperature, moisture, light, air, and soil structure. By tailoring the care to the type of seed, you ensure optimal germination and development of each product into a healthy, strong plant.