Mini Greenhouses

Do you need a lid, self-watering or bottom heat?

A simple mini greenhouse retains moisture and protects the new seedlings during the early stages. Self-watering can provide a more consistent water supply, while bottom heat helps seeds that need a higher and more stable temperature. Not all species germinate better with heat, so let the temperature requirements on the seed packet guide your choice.

How large should the cells be, and how tall should the lid be?

Lots of small cells make efficient use of the space but require earlier transplanting. Deep cells give the roots more room, and the height of the lid determines how long it can remain in place. Adjustable ventilation can reduce condensation. Small watering cans, labels and potting scoops are accessories sold separately, and electric models must always be used according to the manufacturer's instructions.