When should mums be cut back?

As an experienced gardening and landscaping expert, I can confidently say that the optimal time to cut back chrysanthemums, or mums as they are commonly known, is during the spring and early summer months. Specifically, we begin this process as soon as the mums start to grow in the spring, which is usually around March or April, depending on your location and climate.

Pinching or cutting back mums is an essential practice to promote bushier and more compact growth, as well as to encourage the development of more blooms. By regularly pinching or cutting back the stems, you can help prevent the mums from becoming leggy and straggly.

The first pinch or cut back is typically done when the mums have reached a height of around 6-8 inches. This initial pinch helps to stimulate branching and allows the plant to develop a more compact form. To do this, simply use your fingers or pruning shears to remove the top inch or two of new growth from each stem. It’s important to avoid cutting too close to the base of the plant, as this can damage the growing point.

Throughout the spring and early summer, it is recommended to continue pinching or cutting back the mums every few weeks. This helps to maintain their bushy shape and prevents them from becoming too tall and floppy. Each time you pinch or cut back, remove the top inch or two of new growth, focusing on the longer stems to encourage branching and fuller growth.

By the time the fourth of July rolls around, it is generally advised to make the last pinch or cut back for the season. This timing allows the mums to have enough time to develop and set buds for their fall blooming period. Cutting back too late in the summer can potentially disrupt the bloom cycle and result in fewer flowers.

It’s worth mentioning that the exact timing of the last cut back may vary depending on your specific climate and the specific variety of mums you are growing. Some mums may require less pinching or cutting back, while others may benefit from more frequent pruning. It’s always a good idea to observe your plants closely and adjust your pruning schedule accordingly.

In my personal experience, I have found that regular pinching or cutting back of mums not only promotes healthier and more compact growth but also leads to a more abundant display of beautiful blooms in the fall. It’s a rewarding practice that allows you to shape and control the growth of your mums, ensuring they remain visually appealing throughout the growing season.

To summarize, the general guideline for cutting back chrysanthemums is to start in the spring when they begin to grow and continue pinching or cutting back every few weeks until around the fourth of July. However, it’s important to consider your specific climate and the variety of mums you have, as they may require slight adjustments to this schedule. Happy pruning!

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.