Seed companies don't appear to be as reliable as they were in the past. I got some lettuce seeds (rouge d'hiver and black seeded simpson) from a mail order house, they're doing fine in my Aerogarden, but some samples they sent of another lettuce variety hasn't even sprouted in two tries, and neither did the iceberg lettuce seeds I bought at a local store. (Yes, they were labeled for 2022 use.)
When I was talking to the UNL professor who teaches the hydroponics course, he said the tomato seeds he uses for his hydroponics plants cost $1 PER SEED! But he had one that was like 20 feet long. It ran along the floor and then up a tall rack. Apparently as the plant matures, the newer tomatoes are at the far end of the vine, so the earlier sections are trimmed down and lowered to the floor and the plant is essentially moved further down the row.
