We purchased 10 Northern Lights seeds and have not had any of them grow into a flowering plant. 4 of them did not germinate at all, we tried both the paper towel method and RO water method. The 6 that did germinate, within days of planting them in our soil (the same soil that 4 other strains from you were completely successful), they shrivel up and die. Are they super sensitive to something in particular that can be causing this. The Girl Scout Cookie, Gold Leaf, AK-47, and White Widow are all doing wonderfully in the exact same batch of soil. We do live at higher elevation and am wondering if this may be the issue, but again the rest of our 10 strains are growing well.
Welcome to the forum.
The most common cause of failed seedlings is overwatering, which leads to damping off (root rot.)
I have had one batch of seeds, (Blueberry) that wouldn’t sprout. Of the couple that did they were hugely deformed. I had wondered if they were x-rayed too much or something during shipment. Lol.
Anyway if you contact the seed shop, which is separate from this forum they will probably replace them for you. But take Midwestguys advice to heart and watch the water. They thrive on low moisture. We all tend to kill them with love at first.
Use the email you got when you ordered the seeds and reply to it or use this link .
Thank you both so much for your quick responses!
Temperature stunts too . Especially this time of year.
In my basement grow tent at 62F in December, the pre-popped seeds wouldn’t come out of the ground.
It slowed everything down to a crawl until I finally wised up and added some heat. Got it up to 75-80… and things finally moved along.
That makes sense…we live in the mountains and our house and grow room have been a bit cold. Problem is that we are on solar power and adding heat to our greenhouse will be an issue
Too late for you probably, but they make plug in heating pads for plants. Some people swear by them. Heating the soil is more important than heating the air.
What’s a typical temperature in your greenhouse day and night?
It was built by a master craftsman who took into account the angle of the sun during the different seasons, so even when it is -2 the temperature stays pretty constant year round. The temperature is 60-70 degrees.
Or start them in your house where its warmer. You can sprout them under a daylight type led bulb of 5000k or higher. The bulb needs to be 2 or 3 inches above the seedling. Once its up and running just move it to the greenhouse. A day or two would be plenty.
Something like this is fine for a few days.
Even plugging in the heating pad though would drain my solar system batteries…anything that creates heat draws HUGE amperage.
Only uses 20 watts. Or .16 amps. (That is Point One Six.)
I have a 2000W off-grid solar for my garage, pond pump and emergency circuit.
These pads appear to be suprisingly efficient. 20W x 24hr is only 480 Watt hours… a drop in the bucket to heating a house if you are also doing that.
Good luck anyway… sounds like knowing it’s probably not the seeds but the heat itself is half the battle.
welcome to the community. keep those babies warm
Thank you so much, those are the heating pads that came with our germination station thing we bought! I will try them on the Northern Lights seedlings the next time.