In July, the flax started blooming. Usually my flax is blooming in June, but I planted really late this year. I decided to cover the beds again this year to keep the varieties isolated. Depending on whose advice you follow, covering isn’t strictly necessary. It’s labor intensive, admittedly, but it gives me a sense of security that the seed I’m saving from the types I originally got from the USDA are as true as possible to the way that I received them.
The earliest type to start flowering was the one nicknamed 448, which started to flower on July 4th, 37 days after planting. It’s a white flowering type: