When is the best time to fertilize my seedlings?

Question

Hello I recently planted baby’s breath flower seeds around late January but they haven’t grown a lot in 3 weeks. It is about Feb 17 now and the seedlings are still small and some are beginning to turn yellow. I live around Oxnard, California, and the growing zone around where I live is 10. The soil in the tiny container where I planted it is a little soggy due to rain and there has been some frost and low temps of 35.5 degrees Fahrenheit. I bought some fertilizer to help the seedlings grow but should I wait for the temperature to rise or should I put the fertilizer on anyway?

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Answer 1

Wait till the weather warms up and the seedlings are actively growing to fertilize.

The yellow leaves may be due to the cooler temps. Here is more:
https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/seedlings-turning-yellow.htm