Could the early harvest have caused a hormonal immaturity?
***Possibly, but somehow I doubt it, as at least 1/2 of the crosses were harvested at the usual time. The others were picked no more than 2 or 3 weeks early.
What PH is the mix in the bag you are looking for?
***Neutral as far as I remember.
Was there a change in the water for cleaning or spraying or soaking?
***Nope, it was the same old well water as usual.
Did you store them differently?
***No change in how I stored them from the previous 3 years
enough to cause a daily shocking change in temps?
***I don’t believe so, no.
Was the mold on the seeds from an unusal source?
***Not as far as I can tell. What usually happens is that some bags get very moldy (white and blue molds) and some bags do not mold at all…it is a totally random phenomenon as far as I can see.
I used to use composted fir stuff when I was a kid growing African Violets. It was difficult to find but nothing worked as well. Did you switch brands?
***Yes, this was a different brand of soil mix. However, I don’t think it is radically different from the stuff I used in years past (I bought whatever was available, usualy using something different each year, or using several brands in the same year) I doubt the soil mix was the reason, as I have excess seeds still in the fridge that I did not have room to plant, and many of these crosses have germinated in the bags at near 100% as well. Perhaps some of these could be mailed safely if someone wanted them?
One thing I didn’t mention earlier is that I use a dilute solution of H2O2 to water the flats with as a damping off preventative. I have done this for the past two years now and find it to be 100% effective if you do it about every second or third watering.