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Hollyhocks are tall, striking flowers that add vertical interest to any garden. To ensure they grow strong and produce abundant blooms in spring, proper feeding is essential. Understanding the right nutrients and timing can make a significant difference in the health of your hollyhocks.
Understanding Hollyhock Nutritional Needs
Hollyhocks prefer well-drained soil rich in organic matter. They require a balanced supply of nutrients, especially nitrogen, phosphorus, and potassium, to promote healthy foliage and vibrant flowers. During the growing season, regular feeding helps sustain their growth and flowering potential.
Best Time to Feed Hollyhocks
The optimal time to fertilize hollyhocks is in early spring as new growth begins. A second application can be made mid-season to support continued development. Avoid fertilizing late in the season to prevent excessive foliage growth that may not harden off before winter.
Spring Feeding Schedule
- Apply a balanced fertilizer (such as 10-10-10) in early spring when shoots are about 6 inches tall.
- Use a liquid fertilizer every 4-6 weeks during active growth.
- Stop fertilizing about 6 weeks before the first expected frost.
Types of Fertilizers to Use
Choose fertilizers that provide a balanced mix of nutrients. Organic options like compost, fish emulsion, or seaweed extract are gentle and improve soil health. Synthetic fertilizers can also be used but should be applied carefully to avoid overfeeding.
Organic Fertilizers
- Compost or well-rotted manure
- Fish emulsion
- Seaweed extract
Synthetic Fertilizers
- Granular 10-10-10 fertilizer
- Liquid feeds labeled for flowering plants
Additional Tips for Healthy Hollyhocks
Besides fertilizing, ensure your hollyhocks are planted in full sun and protected from strong winds. Mulching around the base helps retain moisture and suppress weeds. Regular watering during dry spells supports healthy growth.
Prune back any diseased or damaged stems to encourage new growth. Supporting tall varieties with stakes prevents them from falling over. With proper feeding and care, your hollyhocks will reward you with stunning blooms each spring.