Geraniums are flowering plants that benefit from regular fertilization to promote healthy growth and abundant blooms. Here are some steps you can follow:
- Choose the right fertilizer: Look for a balanced, water-soluble fertilizer specifically formulated for flowering plants. A fertilizer with an NPK ratio of 10-10-10 or 20-20-20 is generally suitable for geraniums.
- Timing: Begin fertilizing geraniums in early spring, once the plants have started actively growing. Avoid fertilizing newly planted or young geraniums until they have established a strong root system.
- Dilution and frequency: Follow the instructions on the fertilizer packaging for the recommended dilution ratio. Typically, you’ll mix the fertilizer with water to create a diluted solution. Apply the fertilizer every two to four weeks during the growing season.
- Application method: Water the soil around the base of the geranium plants thoroughly before applying the fertilizer. This helps prevent root burn. Then, pour the diluted fertilizer solution onto the soil, avoiding direct contact with the leaves or flowers. Applying the fertilizer in the morning or evening when the temperatures are cooler is preferable.
- Additional considerations: Geraniums prefer slightly acidic soil with a pH between 6.0 and 7.0. If your soil pH is outside this range, you may need to adjust it using soil amendments. Additionally, it’s important not to over-fertilize, as excessive amounts of nutrients can lead to weak growth or burn the plants. Always follow the instructions provided by the fertilizer manufacturer.
Remember to monitor your geraniums closely after fertilization. If you notice any signs of nutrient deficiency or excessive fertilization (e.g., yellowing leaves, stunted growth, or leaf burn), adjust the fertilizer application accordingly.