To feed lilacs, apply fertilizer around the base of the shrub to promote healthy growth and abundant blooms.
Here's a detailed guide on how to properly feed your lilacs:
Fertilizer Recommendations
The best time to fertilize lilacs is in early spring, before new growth begins. Use a fertilizer specifically formulated for shrubs and flowering plants.
- Type of Fertilizer: Use a balanced fertilizer such as 5-10-5 or 10-6-4. The numbers represent the percentage of nitrogen (N), phosphorus (P), and potassium (K), respectively. Phosphorus is particularly important for flower development.
- Amount of Fertilizer: Apply two to three pounds of 5-10-5 fertilizer, or one to two pounds of 10-6-4 fertilizer, per 100 square feet of soil beneath the shrub. Adjust the amount based on the size of your lilac.
Application Method
- Measure the Area: Estimate the area beneath the lilac shrubs that you will be fertilizing. This doesn't need to be exact but will help you determine how much fertilizer to use.
- Broadcast Evenly: Spread the fertilizer evenly on the soil surface beneath the lilac shrubs, extending out to the drip line (the outermost reach of the branches).
- Water In: After applying the fertilizer, water the area thoroughly to help the nutrients soak into the soil and reach the roots.
Important Considerations
- Soil Testing: A soil test can help you determine the specific nutrient needs of your soil. This is the best way to ensure you are providing the correct nutrients in the right amounts. Contact your local agricultural extension office for information on soil testing services.
- Avoid Over-Fertilizing: Too much fertilizer can harm lilacs. Follow the recommended application rates carefully. Over-fertilization can lead to excessive vegetative growth at the expense of blooms.
- Established Lilacs: Established lilacs may not need regular fertilization if they are growing well and blooming profusely. Observe your plants and fertilize only if they show signs of nutrient deficiency, such as yellowing leaves or poor flowering.
- Organic Options: Consider using organic fertilizers, such as compost or well-rotted manure, as an alternative to synthetic fertilizers. These provide nutrients slowly and improve soil health.
By following these guidelines, you can ensure your lilacs receive the nutrients they need to thrive and produce beautiful, fragrant blooms year after year.
