I'm wondering about the right time to transition my seedlings from artificial light to natural sunlight. Some of my seedlings are ready to be repotted into larger pots, but I'm curious if I need to keep using my artificial lights or if I can just place them in a sunny south-facing window instead.
4 Answers
Just a note— a sunny window often doesn't provide enough light for seedlings to grow strong, especially if they're used to bright artificial lights. You might want to supplement with some artificial lights for the best results.
As long as it's warm enough during the day, I recommend getting your seedlings out into the sun as soon as possible. Just keep an eye on the weather, though!
A heads up: if your seedlings have been growing under artificial light, they might get sunburned when you first put them outside. It's something to keep in mind since the sunlight, especially UVB, can be pretty intense compared to indoor lighting.
You can move your seedlings to natural light whenever the temperatures are warm enough for them to thrive. If you have access to a greenhouse, that's even better since you won’t need artificial lighting at all. Just make sure the conditions are suitable!
Yeah, it's still a bit chilly here, so I think I'll hold off for now.