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Hollyhocks are a classic garden flower known for their tall spikes and vibrant blooms. When grown in containers, they require proper care to thrive. One essential aspect of container gardening with hollyhocks is repotting, especially when the plants become crowded or outgrow their current pots. Dividing hollyhocks can rejuvenate the plants and promote healthy growth.
Understanding Hollyhock Growth and Dividing
Hollyhocks are perennial plants that grow from root crowns. Over time, their roots can become crowded, leading to reduced flowering and overall health. Dividing these plants helps to increase vigor, control size, and produce more flowering stems. The best time to divide hollyhocks is in early spring or late fall, when the plant is dormant or just beginning to grow.
Tools and Materials Needed
- Garden spade or sharp knife
- Clean pots or containers
- Well-draining potting mix
- Watering can
- Gloves
- Mulch (optional)
Step-by-Step Guide to Dividing Hollyhocks
Follow these steps to successfully divide and repot hollyhocks:
1. Prepare the Plants
Water the hollyhocks thoroughly a day before dividing. This ensures the roots are moist and easier to handle.
2. Dig Up the Plant
Carefully dig around the base of the plant with a spade or garden fork. Lift the entire root crown out of the soil, being gentle to avoid damaging the roots.
3. Divide the Root Crown
Use a clean, sharp knife or spade to divide the root crown into sections. Each section should have at least one healthy growth point or bud and a portion of roots.
4. Prepare the New Containers
Fill pots with well-draining potting mix. Ensure the containers have drainage holes to prevent waterlogging.
5. Plant the Divided Sections
Place each division into its new container, ensuring the crown is at soil level. Fill around the roots with soil and gently firm it down.
Caring for Divided Hollyhocks
After repotting, water the plants thoroughly. Place them in a location with full sun and protect them from strong winds. Mulching can help retain moisture and suppress weeds.
Additional Tips for Container Success
- Use a high-quality, well-draining potting mix.
- Ensure consistent watering, especially during hot weather.
- Fertilize monthly with a balanced fertilizer to promote blooming.
- Repot every 2-3 years to refresh the soil and prevent root crowding.
- Remove faded flowers to encourage more blooms.
With proper dividing and repotting, hollyhocks can flourish in containers, providing stunning vertical interest and vibrant color to your garden space. Regular care and attention will ensure your hollyhocks stay healthy and beautiful for years to come.