For seed suppliers, Spring 2021 has been hectic, with demand spiking as early as January and forcing some seeds on back order, while new and experienced home gardeners clamor for just the right tomato and spinach plants. Blame soaring demand as new and existing home gardeners seek out exciting varieties, along with old favorites, to plant in their backyards so they can have healthy, homegrown food, says Doug Rohrer, president of Rohrer Seeds, a Lancaster company started by his great-grandfather in 1919. "Sales are going crazy," Rohrer said Monday. - Advertisement - At Rohrer Seeds, a 102-year-old company that supplies home gardeners and small farms, the last year has been a mostly positive whirlwind that shows no signs of slowing down. While every year sees crop failures in agriculture, Rohrer said his seed company has seen no shortage of seeds; in some cases, substitutions have been suggested.