Live to Plant

Why Your Streptocarpus Plant Is Growing Sideways

Updated: July 22, 2023

Introduction

Streptocarpus plants, also known as Cape primroses, are popular among indoor gardeners due to their vibrant blooms and relatively easy care requirements. However, if you’ve noticed that your Streptocarpus plant is starting to grow sideways instead of upright, you may be concerned about its health and appearance. In this article, we will explore the reasons behind this phenomenon and provide you with tips on how to encourage your Streptocarpus plant to grow upright once again.

Lack of Light

One of the main reasons why your Streptocarpus plant may be growing sideways is due to a lack of sufficient light. Streptocarpus plants are native to the forests of South Africa, where they grow under the canopy of trees. As a result, they are adapted to thrive in lower light conditions compared to other houseplants.

However, even though Streptocarpus plants can tolerate lower light levels, they still require a minimum amount of light to grow upright. If your plant is not receiving enough light, it will start to lean towards the source of light in an attempt to maximize its exposure.

To address this issue, try relocating your Streptocarpus plant closer to a window where it can receive bright, indirect light for at least six hours a day. Alternatively, you can provide supplemental artificial lighting using fluorescent or LED grow lights. Place the lights above the plant and adjust them so that they are approximately 12 inches away from the foliage.

Improper Watering Techniques

Another common cause of sideways growth in Streptocarpus plants is improper watering techniques. Overwatering or underwatering can both lead to stress and weaken the plant’s structure, causing it to lean or grow sideways.

To ensure proper watering, it is essential to strike a balance between keeping the soil evenly moist and avoiding waterlogged conditions. Allow the top inch of soil to dry out slightly before watering again. When watering, make sure to thoroughly saturate the soil until water drains out from the bottom of the pot.

Additionally, it is important to avoid getting water on the foliage of Streptocarpus plants as this can lead to fungal diseases. Instead, water the soil directly at the base of the plant or use a watering can with a narrow spout to direct the water accurately.

Imbalanced Nutrient Levels

The nutrients present in the soil are vital for the healthy growth of Streptocarpus plants. If your plant is not receiving an adequate supply of essential nutrients, it may exhibit signs of nutrient deficiencies, such as weak stems and sideways growth.

To ensure your Streptocarpus plant receives the proper nutrition, use a balanced fertilizer formulated specifically for flowering houseplants. Follow the instructions on the fertilizer package carefully and apply it every two to four weeks during the growing season.

Avoid overfertilizing your plant as this can lead to salt buildup in the soil, which can further exacerbate nutrient imbalances. If you notice any signs of fertilizer burn, such as brown tips on the leaves, reduce the frequency or concentration of fertilizer application.

Pot Size and Root Bound Plants

The size of the pot can also impact the growth pattern of your Streptocarpus plant. If your plant has outgrown its current pot and becomes root bound, it may start to grow sideways as it searches for more space to expand its root system.

Check if your plant’s roots are densely packed and circling around the bottom of the pot. If so, it is time to repot your Streptocarpus into a larger container. Select a pot that is only slightly bigger than its current one to prevent excessive moisture retention.

When repotting, gently loosen the roots and provide fresh, well-draining potting soil. This will encourage healthy root development and support upright growth in your Streptocarpus plant.

Pruning and Training

Regular pruning is an essential part of Streptocarpus plant care. By removing spent blooms and leggy stems, you can encourage new growth and maintain a compact, upright form.

To prune your Streptocarpus plant, use clean, sharp scissors or pruning shears. Trim back any long or straggly stems to just above a leaf node or set of leaves. This will promote branching and stimulate the growth of new shoots.

If your Streptocarpus plant has already grown sideways, you can also use gentle training techniques to redirect its growth. Insert thin stakes into the soil near the base of the plant and loosely tie the stems to the stakes using soft plant ties. This will help guide the growth upwards and encourage a more upright habit.

Conclusion

If your Streptocarpus plant is growing sideways, it is crucial to identify and address the underlying cause promptly. By providing adequate light, proper watering, balanced nutrition, appropriate pot size, and regular pruning, you can help your Streptocarpus regain its upright growth habit and thrive as a beautiful addition to your indoor garden. Remember to be patient and observe your plant’s response to these interventions, as it may take time for it to adjust and resume healthy vertical growth.