Updated: July 7, 2023

Perennial plants are a popular choice for many gardeners due to their ability to come back year after year. However, it can be frustrating when a perennial plant starts growing sideways instead of upright. There are several reasons why this may be happening, and understanding the causes can help you correct the issue and ensure your plant grows as intended.

Lack of Sunlight

One common reason why a perennial plant may start growing sideways is a lack of sunlight. Perennials typically require full sun or at least six hours of direct sunlight each day to thrive. If your plant is not receiving enough sunlight, it may start to grow towards the nearest light source, resulting in a sideways growth pattern.

To address this issue, consider moving your plant to a sunnier location in your garden. Observe the area throughout the day to ensure it receives adequate sunlight. Alternatively, if moving the plant is not possible, you could try trimming nearby trees or shrubs that may be shading your perennial.

Improper Watering

Another factor that can cause a perennial plant to grow sideways is improper watering. Overwatering or underwatering can both lead to unhealthy root growth, which in turn affects the overall growth pattern of the plant. When roots are not properly hydrated, they may start growing horizontally in search of moisture.

To prevent this issue, it’s essential to water your perennial plants correctly. Check the soil moisture regularly and water deeply when it feels dry about an inch below the surface. Ensure that the water reaches the root zone by watering slowly and allowing it to penetrate the soil. Avoid overwatering as it can lead to root rot and other problems.

Soil Conditions

The soil conditions in which your perennial plant is growing can also contribute to its sideways growth. Poorly drained soil or compacted soil can restrict root development and force the plant to grow horizontally instead of vertically. Additionally, soil that lacks essential nutrients can result in weak and unhealthy plants.

To improve the soil conditions, consider amending it with organic matter such as compost or well-rotted manure. This will help improve drainage and provide essential nutrients for your plant’s growth. Additionally, regularly aerating the soil by loosening it with a garden fork can help promote healthy root development.

Lack of Support

Some perennial plants, especially those with tall or heavy blooms, require support to grow upright. If your plant is not provided with adequate support, it may start to lean or grow sideways due to its own weight. This is particularly common in plants like peonies, delphiniums, and dahlias.

To prevent sideways growth caused by lack of support, use stakes, cages, or trellises to prop up your perennial plants. Install these supports early in the growing season before the plants become too large and unwieldy. Gently tie the stems to the supports using soft twine or plant ties, being careful not to constrict their growth.

Pests and Diseases

In some cases, perennial plants may start growing sideways as a result of pests or diseases. Certain insects, such as borers or root weevils, can damage the roots of a plant, causing it to grow unevenly. Similarly, diseases like root rot or crown rot can affect the overall health of the plant and lead to abnormal growth patterns.

Inspect your perennial plant regularly for signs of pests or diseases. Look for chewed leaves, holes in stems, or any other visible symptoms. If you suspect an infestation or disease issue, consult a gardening expert or local extension service for guidance on appropriate treatment options.

Conclusion

If your perennial plant is growing sideways instead of upright, it’s crucial to identify and address the underlying cause. Lack of sunlight, improper watering, poor soil conditions, lack of support, and pests or diseases are all potential culprits. By understanding these factors and taking appropriate action, you can help your perennial plants grow as intended, ensuring a beautiful and thriving garden year after year.