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Growing healthy lupines requires proper care and nutrition, especially after deadheading. Fertilizing effectively can encourage new growth and vibrant blooms. Here are some of the top fertilizers to help your lupines thrive post-deadheading.
Why Fertilize Lupines After Deadheading?
Deadheading removes spent flowers, but it can also deplete the plant’s nutrients. Fertilizing replenishes essential nutrients, promoting vigorous growth and abundant flowering in the next season. Proper fertilization enhances the plant’s overall health and resilience.
Top Fertilizers for Lupines
- Low-Phosphorus Fertilizer – Lupines prefer fertilizers with low phosphorus levels to prevent root damage. Look for formulations labeled as low-phosphorus.
- Balanced Organic Fertilizer – Organic options like composted manure or fish emulsion provide a gentle, nutrient-rich boost.
- Specialized Lupine Fertilizer – Some garden centers offer fertilizers formulated specifically for lupines and other legumes.
- Liquid Fertilizer – Fast-acting liquid feeds can be applied every 4–6 weeks during the growing season.
- Slow-Release Fertilizer – Provides nutrients gradually, reducing the risk of overfeeding and supporting steady growth.
How to Fertilize Your Lupines
Apply fertilizers according to the product instructions. Generally, after deadheading, you should:
- Water the plant thoroughly before fertilizing.
- Use a balanced fertilizer or one specifically for legumes.
- For liquid feeds, dilute as directed and apply to the soil around the base.
- For granular or slow-release fertilizers, sprinkle evenly around the plant.
- Avoid over-fertilizing, which can lead to excessive foliage growth at the expense of flowers.
Additional Tips for Healthy Lupines
Besides fertilizing, ensure your lupines are planted in well-draining soil and receive full sun. Mulching can help retain moisture and regulate soil temperature. Regular watering during dry spells supports healthy growth, especially after deadheading.
Conclusion
Choosing the right fertilizer and applying it correctly can significantly impact the health and flowering of your lupines after deadheading. With proper care, your lupines will reward you with vibrant blooms and lush foliage season after season.