Lesson 5: Annuals, Perennials and Biennials
Fall Planting
Fall is an ideal time to plant certain varieties of annuals and perennials. The long winter allows time for developing strong root systems without the added stress of blooming. Cool weather annuals thrive and perform beautifully, then reseed themselves for Spring.
Roses, azaleas and peonies are prime examples of plants that fare better with a cold season between planting and flowering. The planting location is very important in setting out Fall plants. It should be clean and well drained, with some shelter from rain, wind and snow. If the site has been used for other plants, the soil will need cleaning and amending.
If the new site is weedy and brush filled, clearing it thoroughly and applying a pre-emergent 3 weeks before planting is recommended. Landscape fabric will help supply an additional barrier in the Spring.
Amending is done much more lightly, and the use of high nitrogen fertilizers is discouraged. You don’t want to artificially stimulate leaf growth. Use compost and bone meal, only in the top 2-3 inches of soil. Avoid any feeding, this is most bare root plants dormant period. Annuals can be fed with MiracleGro to keep their blooms coning until frost.
Mulching is very important for winter protection against burrowing animals, cold and snails. Snails and slugs thrive in cool damp weather. Make certain the mulching is thick enough to do some good. Spray roses and azaleas with dormant oil for further protection. If sub zero temperatures are expected, you can insulate new plants with burlap or foam rose cones to hold in heat. Milder winters don’t require the plants to be protected any further, as the cold air helps harden them off.
Take advantage of the great selection and lower prices on Fall plants. It will help you get a jump start on Spring.
