As a gardening and landscaping expert, I have found that the use of a germination mat can greatly aid in the successful germination of seeds. However, it is important to use this tool correctly to ensure the health and vigor of your seedlings.
In general, it is recommended to keep the germination mat on or warm at all times during the germination process. This provides a consistent and optimal temperature for the seeds to sprout. Unlike using a timer, which may cause fluctuations in temperature, keeping the mat on ensures a constant heat source for the seeds.
Once most of the seeds have sprouted and you see the emergence of leaves, it is time to remove the seedlings from the bottom heat. At this stage, the seedlings prefer slightly cooler temperatures to help them harden off and develop strong stems. If they remain on the germination mat, they may actually become leggy and weak, as the constant warmth can encourage rapid growth without proper development.
I have personally experienced the negative effects of keeping seedlings on the germination mat for too long. The seedlings became elongated and weak, and they struggled to adapt to the cooler temperatures outside of the mat. It is important to pay attention to the growth and development of your seedlings and make adjustments accordingly.
To summarize, it is best to keep the germination mat on or warm all the time during the germination process. However, once most of the seeds have sprouted and leaves have emerged, it is important to remove the seedlings from the bottom heat and allow them to acclimate to slightly cooler temperatures. By following these guidelines, you can ensure the healthy growth of your seedlings and promote their overall success.
