Table of Contents
August is the perfect time to prepare your garden for a vibrant spring. Pruning perennials now encourages healthy growth, stronger stems, and better flowering in the upcoming season. Here are the top five perennials to prune this August for the best spring results.
1. Peonies
Peonies are a classic perennial that benefits from late summer pruning. Remove any faded flowers and cut back the foliage to about 2-3 inches above the ground. This helps prevent diseases and encourages new, vigorous growth in spring.
2. Daylilies
After their blooming period, daylilies should be trimmed back to about 4-6 inches. Cutting back the foliage in August promotes better bloom production next year and keeps the plant healthy by removing dead or yellowing leaves.
3. Coneflower (Echinacea)
Deadheading coneflowers encourages a second bloom and prevents seed formation. After the main flowering, cut back the flower stems to just above the foliage. This pruning also helps improve airflow and reduce disease risk.
4. Black-eyed Susan
Black-eyed Susans should be trimmed back once they finish blooming. Remove spent flower stalks and cut the plant down to about 6 inches. This rejuvenates the plant and prepares it for healthy growth in the spring.
5. Lavender
Lavender benefits from light pruning in late summer. Trim back the woody stems by about one-third, avoiding cutting into old wood. Proper pruning encourages bushier growth and more fragrant blooms in the next season.
Additional Tips for Pruning in August
- Use clean, sharp pruning shears to prevent disease.
- Remove any dead or diseased stems first.
- Avoid heavy pruning during heatwaves to reduce stress on plants.
- Always dispose of pruned material away from the garden to prevent pest spread.
Pruning your perennials in August sets the stage for a lush, healthy, and colorful spring garden. Regular maintenance now ensures your plants remain vigorous and beautiful year after year.