Updated: July 25, 2023

Introduction

Mullein, scientifically known as Verbascum thapsus, is a fascinating plant with its tall stature and vibrant yellow flowers. However, it can be quite disheartening when you notice that your mullein plant is growing sideways instead of upright. In this article, we will explore the possible reasons behind this issue and provide some solutions to help you rectify the situation.

Insufficient Sunlight

One of the primary reasons why your mullein plant may be growing sideways is due to insufficient sunlight. Mullein plants thrive in full sun conditions and require at least six to eight hours of direct sunlight each day. If your plant is located in a shady area or is obstructed by taller plants or structures, it may start to lean towards the available light source, resulting in a sideways growth pattern.

To address this problem, consider relocating your mullein plant to a sunnier spot in your garden. Ensure that there are no obstructions blocking the sunlight from reaching the plant. Additionally, regularly rotate the pot if you are growing mullein in containers to ensure that all sides receive equal exposure to sunlight.

Improper Soil Drainage

Another factor that can cause mullein plants to grow sideways is improper soil drainage. These plants prefer well-draining soil that does not retain excessive moisture. If the soil becomes waterlogged and stays wet for extended periods, it can lead to root rot and weaken the plant’s stability, causing it to lean or grow sideways.

To improve soil drainage, amend your garden bed or potting mix with organic matter such as compost or peat moss. This will help loosen compacted soil and facilitate better water movement. Additionally, avoid overwatering your mullein plant and let the soil dry out slightly between watering sessions.

Lack of Proper Support

Mullein plants can reach heights of up to six feet or more, making them susceptible to bending or leaning under their weight. If your mullein plant lacks proper support, it may grow sideways to find something to lean on for stability.

To prevent your mullein plant from growing sideways due to lack of support, consider staking or trellising it. Place a sturdy stake near the base of the plant and gently tie the stem to the stake using soft twine or plant ties. This will provide the necessary support and encourage upright growth.

Pests and Diseases

Sometimes, a sideways growth pattern in mullein plants can be attributed to pest infestations or diseases. Certain insects, such as aphids or caterpillars, can weaken the plant’s structure by feeding on its leaves or stems. Likewise, fungal infections or viral diseases can cause deformities in the plant, leading to abnormal growth patterns.

Inspect your mullein plant regularly for any signs of pest damage or disease symptoms. If you identify any issues, promptly treat them with appropriate organic insecticides or fungicides. In severe cases, you may need to remove and destroy severely affected plants to prevent further spread.

Nutrient Deficiencies

Mullein plants require a sufficient supply of nutrients to grow healthy and upright. If your plant is not receiving adequate nutrition, it may exhibit stunted growth and develop a sideways growth habit.

Conduct a soil test to determine if your mullein plant is facing any nutrient deficiencies. Based on the test results, adjust your fertilization routine accordingly. Apply a balanced organic fertilizer that is rich in nitrogen, phosphorus, and potassium to promote vigorous growth and help rectify the sideways growth issue.

Conclusion

While it can be disconcerting to see your mullein plant growing sideways instead of upright, there are several potential causes and solutions to address this issue. Ensure that your plant receives sufficient sunlight, maintain proper soil drainage, provide adequate support, check for pests and diseases regularly, and address any nutrient deficiencies. By implementing these measures, you can help your mullein plant regain its upright growth pattern and continue to thrive in your garden.