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How to Grow Geranium Plant Outdoors

Updated: May 4, 2022

Geraniums are a popular choice for outdoor gardening due to their beautiful and colorful blooms. These plants are easy to grow and maintain, making them an ideal choice for beginners and experienced gardeners alike. In this article, we will discuss how to grow geraniums outdoors and provide some tips to help you achieve a beautiful and healthy garden.

Choosing the Right Location

Geraniums require plenty of sunlight to thrive, so it is important to choose a location that receives at least 6 hours of direct sunlight per day. Additionally, geraniums prefer well-draining soil that is rich in organic matter. If your soil is heavy or clay-like, consider adding compost or perlite to improve drainage.

Planting Geraniums

When planting geraniums, it is important to space them at least 12 inches apart to allow for proper airflow and prevent overcrowding. Dig a hole that is slightly larger than the plant’s root ball and place the plant in the hole, making sure that the soil level matches the top of the root ball. Gently tamp down the soil around the plant and water thoroughly.

Watering Geraniums

Geraniums require regular watering to stay healthy, especially during hot and dry weather. Water your geraniums deeply once or twice a week, depending on your climate and soil type. Avoid overwatering as this can lead to root rot and other fungal diseases.

Fertilizing Geraniums

Geraniums benefit from regular fertilization during the growing season. Use a balanced fertilizer, such as a 10-10-10 formula, every 4-6 weeks. Be sure to follow the manufacturer’s instructions for application rates.

Pruning Geraniums

Regular pruning can help keep your geraniums looking their best and promote healthy growth. Deadhead spent blooms by removing them at the base of the stem. This will encourage the plant to produce new flowers. Additionally, you can pinch back the tips of the stems to promote bushier growth.

Common Problems

Geraniums are generally easy to grow and maintain, but they can be susceptible to a few common problems. Here are some issues to watch out for:

  • Powdery mildew: This fungal disease appears as a white powdery coating on the leaves and stems. To prevent powdery mildew, avoid overwatering and provide plenty of airflow around the plants.

  • Aphids: These small insects can suck the sap from your geraniums and cause stunted growth and distorted leaves. To control aphids, spray your plants with a strong stream of water or use an insecticidal soap.

  • Spider mites: These tiny pests can cause yellowing and browning of the leaves. To control spider mites, spray your plants with a mixture of dish soap and water or use an insecticidal spray.


Can I grow geraniums in containers?

Yes, geraniums do well in containers as long as they have plenty of room for their roots and are watered regularly.

How often should I fertilize my geraniums?

Fertilize your geraniums every 4-6 weeks during the growing season with a balanced fertilizer.

Can I grow geraniums in partial shade?

Geraniums prefer full sun but can tolerate partial shade. However, they may not bloom as profusely in shady areas.

In conclusion, growing geraniums outdoors is an enjoyable and rewarding experience for any gardener. By following these tips and guidelines, you can create a beautiful garden filled with vibrant colors and lush foliage. Remember to keep an eye out for common problems and address them promptly to keep your geraniums healthy and thriving.