In the spring, the garden centers are full of magnificent flowering perennials. They grow in containers just waiting to be planted in the garden. However, the different planting periods are not always associated with advantages.
Perennials can be planted in fall or spring
Fall planting desired
Planting out in the autumn months takes place when the plants announce their hibernation through leaf fall. Evergreen plants have also completed their above-ground growth in autumn. They put all their energy into developing new roots, so warm and moist soil is needed. Planting is possible from September to November, provided there is no danger of frost.
benefits
During the autumn months, the range of plants in hardware stores and tree nurseries is particularly large. In the spring, the ornamental plants ring in the new season with vigorous budding. The perennials survive dry periods better during the coming summer months because they have already had enough time to take root.
Spring planting as an alternative
If you missed the fall deadline, you can plant your selection of plants in the garden after winter. Sensitive plants that are not fully frost hardy should preferably be planted in spring. Autumn chrysanthemums and lilies are typical examples. Depending on the location and weather, the period extends from mid-March to mid-May. At this planting date, there is an increased maintenance effort, because there can be more dry phases. So make sure you have an adequate water supply.
Avoid summer planting
Perennials are offered in containers all year round. In principle, the plants can also be placed in the garden during the summer months. In this period the plants are in the main growth phase. They invest their energy in the development of leaves, flowers and fruits. The roots take over the function of water and nutrient supply. Their growth is restricted during this time. Rooting is therefore more difficult in summer, so you have to prepare the soil well and take care of the perennials in the best possible way.
Plant perennials in the garden
Dig the soil deeply and clear the area of root weeds. Depending on the needs of the ornamental plants, improve the subsoil with either sand or compost to improve permeability and nutrient supply. A slow-release fertilizer creates good starting conditions for most species.
How to proceed with planting:
- Put perennial in a water bath
- Shorten above-ground plant parts to encourage root growth
- Dig a planting hole with twice the volume of the root ball
- Insert the plant, fill in the excavation and press down well
- Thoroughly water the soil
A mulch layer creates better growth conditions because the soil cannot dry out as quickly during the hot season. However, fresh grass clippings are not suitable, because mowed grass that is too moist easily begins to mold. When the perennials have grown, the first pruning takes place in autumn. This is not necessarily necessary for all plants, because dead plant stems provide a hibernation quarters for insects and act as winter protection.