I’m 100% new to growing (or any sort of gardening tbh). A couple of months ago I bought a grow kit online with a 6ft high tent, 200w LED light and extractor fan, carbon filter. I’ve been reading all I can find online and watching videos but even so I’ve had a very disappointing experience with 3 failed attempts and am struggling to figure out where I’ve been going wrong. I haven’t been able to find many resources online to help with this very early stage.
Ironically my best attempt was before any of my gear arrived. I decided to germinate and sprout some seedlings while I waited for the grow gear to show up. I germinated 8 seeds in a paper towel, planted them in 2-inch pots and placed them underneath a desk lamp with a 10w LED bulb (on an 18/6 hr cycle) just in the middle of the room. By the way it’s winter here and room temperature is kinda cold (17c / 60f). 6 of them sprouted within 4 or 5 days and they grew quite nicely for the next week or so before my kit arrived. I was giving them probably about a tablespoon of water a day with one spray in the morning and one at night (regular water).
By the time the kit arrived they were about 5 - 7 inches high. I set the tent up with the new 200w LED about 10inches above the pots. I also placed a small usb fan on the plants (as I’d been reading good for the air circulation plants need). All plants were dead/dying within 12hrs. I assumed it was because I had blown too much air directly at the plants before they were strong enough. Felt stupid, but thought okay I won’t do that again.
Attempt 2 (pictured)
I tried another batch with same germination process in paper towel, ended up with 4 sprouted seeds which transfer to 2-inch pots in the same way. Placed in tent under 200w LED light again about 10inches above the pots. Still giving about 1 table spoon of water per day. I bought a small oil heater to get the temperature within recommended growing conditions and had it fluctuating pretty nicely between 23 and 26celcius (73-78f), I was using the extraction fan intermittently to try and keep fresh air coming into the room, but wasn’t sure if it was necessary at that time. Once it had been over a week and nothing came to surface in any of the pots I tipped them out and found that the dead sprouted seeds had basically not grown at all since germination. The soil was also pretty dry (quite powdery and doesn’t really stick to your fingers) I assumed I had dried out the soil by having too powerful a light too close to the pots as well as the heater and that was what had killed them.
Same germination process in paper towns, transferred 3 sprouted seeds to 2-inch pots. Placed under the 200w LED at almost the lowest setting and about 3 ft above the pots. Slightly increased watering to about 1 and a half table spoons. This I didn’t use the heater or extraction fan so the tent has been around winter room temperature (17c / 60f). Again after a week nothing sprouted, I tipped out the pots and again found that the spouts had died exactly the same size as I had put them in as without growing at all (sigh). Again the soil was pretty dry.
I know that my 200w LED is probably overkill for seedlings, but that’s the only light the grow kit came with and I assumed I could get away with using it for all stages far away and/or at low power, but so far I’ve only been able to get seeds sprouting under the 10w desk lamp.
Sorry for the essay, any help would be much appreciated!!