Most lettuce seed lasts for five to six years.
The book began when Mary Anne McClean wondered about lettuce seed and how it grew into an edible plant.
She helped to plant the lettuce seeds, but John scolded her because she sowed them so thickly.
Art Margiotta of Morristown watched his daughter, Andrea, 7, work on her first garden, measuring the distance between lettuce seeds.
At room temperature, lettuce seeds remain viable for only a few months.
Among the vegetables, tomato, pea, bean, and lettuce seeds are worth collecting.
When a former intern from Hungary sent them four lettuce seeds, they used old techniques of crop isolation and seed selection to increase the yield.
Clip pea vines and any weeds at ground level, then scratch open only enough soil to plant the lettuce seeds.
"I planted lettuce seeds today," she said.
And we actually need the hydrogen peroxide and the pasta too, it's not just a luxury like lettuce seeds.