Peonies are a beloved perennial flower that can add color and beauty to any garden. These stunning flowers are known for their large, showy blooms that come in a variety of colors, from pure white to deep magenta. As autumn approaches in New Zealand, it’s time to start thinking about how to care for your peonies to ensure that they thrive come springtime.
Cutting Back the Foliage
The first step in caring for your peonies in autumn is to cut back the foliage. This helps to prevent the spread of disease and pests over the winter months. Use a pair of clean, sharp garden shears to cut the foliage down to about 10 centimeters above the ground. Be sure to dispose of the foliage in the trash or compost pile, as opposed to leaving it on the ground.
Dividing the Plants
If your peonies have become overcrowded or are not blooming as much as they used to, it may be time to divide the plants. This is best done in autumn when the plant is dormant. To divide a peony plant, carefully dig it up and separate the roots into smaller sections, each with at least three to five healthy buds. Replant the sections in a well-draining soil and water them well.
Mulching the Soil
Another important step in caring for your peonies in autumn is to mulch the soil. Mulching helps to regulate the soil temperature, which is particularly important in areas where the temperature fluctuates frequently. It also helps to retain moisture in the soil, which can be beneficial during periods of drought. Use a layer of organic mulch, such as compost or straw, and apply it around the base of the plant.
Fertilising the Soil
Fertilising the soil is also an essential step in caring for your peonies in autumn. Peonies require a balanced fertiliser that is rich in phosphorus to encourage blooming. Apply a slow-release fertiliser around the base of the plant, following the instructions on the packaging. Avoid fertilising too heavily, as this can lead to an overgrowth of foliage at the expense of blooms. Autumn is also a great time to feed the soil with some Liquid Seaweed and Humic and Fulvic acids.
Caring for your peonies in autumn may seem like a lot of work, but it’s well worth the effort to see these stunning flowers in full bloom come springtime. Follow these simple steps from Green Fingers and you’ll be rewarded with healthy, vibrant peonies year after year.
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