As native plants are often ideal for helping to keep soil in place and also are great at filtering stormwater runoff because of their dense or deep root systems, I often encourage homeowners with erosion problems or those concerned with water quality to plant Natives. But the cost of plugs, especially for a large area can often turn them off of the idea.
Starting plants from seed can be fun and save you quite a bit of money – and winter (December through February) is the best time to get started! Many plant seeds need to be stratified to germinate. Stratification happens naturally during winter when the seeds go through freeze cycles and the soil is moist.
Be sure to purchase or harvest good quality, local seed. Native seed dealers can be found HERE. For large areas, simply broadcast seed on a well-prepared soil bed. It is ok if there is some snow on the ground, but don’t spread seed on deep snow. Mulch with clean straw (no weed seeds). The freeze/thaw action of the soil will do the work of moving the seed into the soil for you.
For smaller areas, such as a rain garden, you can start seeds in containers and place them outside where they will get light and rain/snow – but don’t put them in a south-facing location. You don’t want them to sprout prematurely. Gallon milk jug containers work well as potting containers if you cut them in half horizontally, leaving a section near the handle uncut to act as a hinge. Leave the cap off. Monitor to be sure the soil stays moist. When the weather starts warming up be sure to open them up during the day and close them at night.
In the spring, when the plants have grown at least 4 “true” leaves re-pot them into pots until they are ready to plant in the garden. Be sure to mark all of your containers and pots so you know what you’ve got and can plant them in the correct locations. For more information on native plants visit our Native Plants Page.