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Feeding Geraniums: Tips and Tricks for Healthy Plants


feeding geraniums
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Geraniums are among the most popular flowers grown in gardens and containers worldwide. They are easy to care for, require minimal maintenance, and produce beautiful blooms that last all season long. However, to ensure healthy growth and abundant flowering, proper feeding is essential. In this article, we will discuss how to feed geraniums and provide tips and tricks to help you grow healthy plants.

The Importance of Feeding Geraniums

Geraniums are heavy feeders, meaning they require a lot of nutrients to grow and bloom properly. Without proper feeding, they may become stunted, produce fewer flowers, or even die. Therefore, it is crucial to provide them with the right nutrients at the right time.

When to Feed Geraniums

The best time to feeding geraniums is in early spring when new growth begins to appear. You should continue to feed them throughout the growing season until fall, when they go dormant. During the winter months, geraniums do not need any feeding as they are resting.

What Nutrients Do Geraniums Need

Geraniums require three primary nutrients for healthy growth: nitrogen (N), phosphorus (P), and potassium (K). Nitrogen promotes leafy growth, while phosphorus encourages flower development and root growth. Potassium helps plants resist disease and stress and enhances flower color and quality.

How to Choose the Right Fertilizer

When selecting a fertilizer for your geraniums, choose one with a balanced NPK ratio, such as 10-10-10 or 20-20-20. You can also use a specialized geranium fertilizer that contains extra phosphorus and potassium for better flowering. Always read the label carefully and follow the manufacturer's directions for application rates.

Feeding Geraniums in Containers

Geraniums grown in containers require more frequent feeding than those grown in garden soil. Container plants have limited root space, which means they have less access to nutrients. Therefore, you should fertilize them every two weeks during the growing season with a water-soluble fertilizer.

How to Apply Fertilizer

When applying fertilizer to geraniums, it is essential to do so correctly to avoid overfeeding or underfeeding. Water the plant thoroughly before applying fertilizer to prevent burning the roots. Then, apply the fertilizer according to the package instructions, taking care not to get any on the leaves or flowers.

Tips and Tricks for Feeding Geraniums

Use Epsom Salt

Adding Epsom salt to your geraniums' soil can help promote healthy growth and flowering. Epsom salt contains magnesium, which is essential for chlorophyll production and helps plants absorb other nutrients like nitrogen and phosphorus. Mix one tablespoon of Epsom salt per gallon of water and apply to the soil every two weeks.

Top-dress with Compost

Another way to feed geraniums is by top-dressing the soil with compost. Compost is rich in organic matter, which provides essential nutrients to plants. Spread a thin layer of compost over the soil surface and gently work it into the top inch of soil.

Avoid Overfeeding

Overfeeding can be just as harmful as underfeeding. Too much fertilizer can cause leaf burn, stunted growth, and fewer flowers. Always follow the package instructions for application rates, and do not apply more than recommended.

Water Properly

Proper watering is essential for healthy geraniums. Water them deeply once a week or when the soil feels dry to the touch. Overwatering can cause root rot, while underwatering can lead to wilting and poor growth.

Provide Adequate Light

Geraniums require at least six hours of direct sunlight per day to grow and bloom properly. If grown indoors, place them near a sunny window or under artificial grow lights.


Feeding geraniums is an essential part of their care and maintenance. By providing them with the right nutrients at the right time, you can help ensure healthy growth and abundant flowering. Remember to choose the right fertilizer, apply it correctly, and use tips and tricks like Epsom salt and compost to enhance your plants' health.

FAQs

Q: How often should I feed my geraniums?

A: You should feed geraniums every two weeks during the growing season, ing in early spring and continuing until fall.

Q: What kind of fertilizer should I use for my geraniums?

A: Choose a balanced fertilizer with an NPK ratio of 10-10-10 or 20-20-20. You can also use a specialized geranium fertilizer that contains extra phosphorus and potassium.

Q: How do I avoid overfeeding my geraniums?

A: Always read the package instructions carefully and do not apply more fertilizer than recommended. Avoid getting fertilizer on the leaves or flowers, as this can cause burn.

Q: Can I grow geraniums indoors?

A: Yes! Geraniums can be grown indoors as long as they receive at least six hours of direct sunlight per day or are placed under grow lights.

Q: What should I do if my geraniums aren't blooming?

A: Check to make sure they are receiving enough sunlight, water, and fertilizer. You may also need to deadhead spent blooms to encourage new growth and flowering.


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