How do I determine when to transplant seedings to bigger containers?

Let the roots tell you when to transplant. When you begin to see the seedling’s root growing out of the bottom of their current pot, it is time to transplant up to something larger. We recommend using a 4” nursery pot to transplant most seedlings. In turn, they make it easier when transplanting into the garden. Nursery pots can also be washed and re-used year after year.