As winter sets in it is a good time for the gardener to assess the needs for the next gardening season. Every gardener needs plants, lots of them. Buying plants can be very expensive, and the choices are limited to whatever the retailer you buy from elects to sell.
Plant propagation structures range from the simple plastic domes placed in the garden to hasten the germination of seeds planted early to elaborate greenhouses with climate control and irrigation systems. You need to assess your needs before you can decide what to purchase to start plants for your garden.
A simple cold frame may be suitable for your needs. Seeds can be started indoors in a south facing window, transplanted into the cold frame when they are larger. A greenhouse may be the choice if you grow a lot of plants over a long season. A greenhouse is much easier to control the climate than a cold frame or hot bed. Water hydrants may be installed inside, as well as heating systems to grow plants during the long cold winter months.