I built this greenhouse over the summer. I'm keeping palm seedlings, citrus, other tropicals and bananas in it over the winter. In the fall, when I dug up the bananas, I split the large pups off the moms. I stored the moms in the basement dormant like usual and put the pups in the greenhouse to hopefully get a head start for the spring. Now I've split pups in the spring before and they don't seem to miss a beat. However, this fall the pups lost leaves one by one and didn't seem to grow at all. Yesterday I did some investigating and the centers still look good in most. However, two of the basjoo rotted in the center, but sent up new pups themselves. I keep the greenhouse a minimum of 60 at night and it's 75-80 during the day. I heat with a wood stove and supplement with electric heat. I have lights that kick on from 4-8 every night so everything is getting about 13 hours of light a day.
So why aren't these growing? First here are pics of the greenhouse.
Outside looking at it.
Looking in front door.
Basjoo with rotted out center.
Other pups that just won't grow.
Warm 65F in there right now.
Trying to figure this out...any other northern growers with greenhouses?