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Yarrow (Achillea millefolium) is a versatile and hardy perennial plant valued for its feathery foliage and clusters of colorful flowers. It is a popular choice for gardens aimed at attracting pollinators and adding natural beauty. Proper care, especially when dividing and transplanting yarrow, ensures healthy growth and vibrant blooms year after year.
Understanding Yarrow and Its Growth Habits
Yarrow is a resilient plant that spreads through both roots and seeds. It typically forms clumps that can become dense over time. Knowing its growth pattern helps in managing and dividing the plant effectively to promote vigorous growth and prevent overcrowding.
When to Divide Yarrow
The best time to divide yarrow is in early spring or late fall, when the plant is dormant or just beginning to emerge. Dividing during these periods minimizes stress and encourages quick establishment of new plants.
Tools and Materials Needed
- Sharp garden spade or knife
- Garden gloves
- Compost or organic matter
- Watering can or hose
- Mulch (optional)
Step-by-Step Guide to Dividing Yarrow
Follow these steps to successfully divide your yarrow plants:
1. Prepare the Area
Water the yarrow thoroughly a day before dividing to reduce stress and make the soil easier to work with.
2. Dig Around the Plant
Use a spade or garden fork to carefully loosen the soil around the base of the plant. Dig deep enough to lift the entire clump without damaging the roots.
3. Remove and Separate
Gently lift the plant from the soil. Use a sharp knife or spade to divide the root clump into smaller sections, each with healthy roots and foliage.
4. Prepare the Divisions
Trim any damaged or dead foliage. Dip the roots in water if needed to keep them moist during planting.
Planting and Care After Division
Plant the divided yarrow sections in well-draining soil enriched with compost. Space them about 12 to 18 inches apart to allow for growth. Water thoroughly after planting to help establish the roots.
Ongoing Maintenance Tips
- Water regularly during dry spells, especially in the first year.
- Apply mulch around the plants to retain moisture and suppress weeds.
- Deadhead spent flowers to encourage continuous blooming.
- Divide yarrow every 3 to 4 years to maintain vigor and prevent overcrowding.
- Monitor for pests and diseases, though yarrow is generally pest-resistant.
Benefits of Dividing Yarrow
Dividing yarrow not only rejuvenates the plants but also provides additional plants for other areas of your garden. It promotes healthier growth, larger flowers, and better overall plant health. Regular division helps keep the garden tidy and prevents the spread of unwanted growth.
Conclusion
With proper timing and technique, dividing yarrow can be a rewarding gardening activity. It ensures your yarrow remains vigorous, attractive, and beneficial for pollinators. Remember to handle the roots gently and provide optimal growing conditions for continued success.