How to Plant Tree Peonies

Tree peonies are among the most admired and beloved flowers around the world because of their big, showy blooms that come in a variety of colours. There are numerous types of tree peonies, but only a few will thrive in your area. Although planting and caring for these flowers can be daunting initially, it is a satisfying and labour-rewarding activity. Here is a simple guide on how to properly plant tree peonies.

Selecting your Tree Peonies

If you plan to grow tree peonies, you must choose the right types for your geographic location. Ask local nurseries or gardening centres for recommendations depending on your climate, soil, and rainfall. It's important to choose a type that will thrive and flourish in your area.

Tree peonies come in many different colours, such as pink, red, magenta, yellow, and white so pick the hue that suits your preferences. These plants are available in many flower forms, from simple, single flowers to full, double flowers. Select the flower style which appeals to you most.

Selecting the Planting Location

Tree peonies can endure several years if they are grown in ideal conditions. When you choose a planting location, ensure that it has good drainage, with the soil being well-drained and not water-logged. If the soil is full of clay, mix it with compost or other organic matter to improve drainage. Tree peonies generally like full sun, but they also need some afternoon shade, especially in hot areas.

It is preferable to plant tree peonies in autumn before the ground freezes, or in late winter before the buds start to swell. Tree peonies in containers can be planted anytime, but late winter to early spring is preferred. The most popular methods for planting tree peonies are in groups, spaced about 60cm apart, or individually as a focal point.

Planting Your Tree Peonies

Dig a deep hole, twice the size of the root ball or container of the plant. Build a small mound of soil in the middle of the hole to place the plant on. This is essential for proper drainage. Make sure the graft union or stem is at the same depth as it was in the container or the ground, taking care not to plant too deep. Fill the hole halfway with soil, water generously, and complete filling the hole with soil, tamping it down firmly. Apply a 5-10cm layer of mulch to avoid water evaporation and to keep the roots cool.

Water the plants generously, but avoid over-watering as excessive moisture may attract pests, diseases and other complications. Tree peonies with a firm root system rarely need additional irrigation, except in extreme heat or dry conditions. Moreover, dilute a balanced liquid fertiliser monthly, following the package instructions.

Maintenance and Care

Once you have planted your tree peonies, they will begin to grow and bloom. To ensure the plant continues to prosper, prune annually when the leaves fall by removing any dead or broken branches, thinning out highly congested branches and aerating the shrub if it has grown exceptionally dense. This is important because it enhances air circulation around the tree peonies and prevents the plant from being infected by pests and diseases.

Although tree peonies don't typically develop severe pest problems, it's crucial to keep a watch on them for signs of aphids, mealybugs, mites or other pests. If these pests are spotted, treat immediately using organic pesticides, insecticides or miticides.

Tree peonies are exceptional plants that provide a stunning pop of colour to gardens and flower beds. With proper selection, planting, and care, you can enjoy tree peonies for extended periods.