Why Are My Freshly Sprouted Larch Trees Dying

Question

I recently started approximately 30 larch trees from seed. I have them in a small green house in my garage with a heater set at 65 degrees and a grow light for approximately 10 hours per day, but they have died off one by one and I now only have about 5 left.

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Answer 1

Leave the light on 16 hours a day and move the light closer to the seedlings if possible. Make sure they are not overwatered. Damping off is a common disease of seedlings. These articles should help:

https://www.gardeningknowhow.com/garden-how-to/propagation/the-top-reasons-seeds-and-seedlings-fail

https://www.gardeningknowhow.com/featuring/seed-starting-for-beginners-everything-to-know-before-you-start-seeds