Q.How Often Should I Water Lavender Seedlings?
The seeds are growing in organic soil and in a well drained pot. They’re also exposed to around 7 hours of sun and a temperature between 75 and 80 Fahrenheit.
Certified GKH Gardening Expert
You will want to water as the top dries out thoroughly, no more than 1/3 of the way down into the container. Do not water before the top dries out a little, and do not let it dry out, completely. This will differ in time, depending on the temperature, wind, and other factors.
A moisture meter can help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm