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Dividing phlox is an essential gardening task that helps maintain the health and vigor of your plants. Performing this task before winter arrives ensures that your phlox has enough time to establish itself and recover from the division process. Proper division can lead to more blooms and a fuller garden display in the following season.
Why Divide Phlox?
Phlox, a popular perennial flower, tends to become crowded over time. This crowding can lead to reduced flowering and increased susceptibility to diseases. Dividing the plants rejuvenates them, promotes healthier growth, and extends their lifespan. It also allows gardeners to propagate new plants for free or to share with others.
When to Divide Phlox
The best time to divide phlox is in early fall, about 4 to 6 weeks before the first expected frost. This timing gives the plants ample time to establish roots before winter. Alternatively, dividing in early spring just as new growth begins is also effective, but fall division is generally preferred for optimal results.
Tools and Materials Needed
- Garden spade or sharp shovel
- Garden fork
- Pruning shears or sharp knife
- Gloves
- Water for soaking
- Compost or organic matter (optional)
Step-by-Step Guide to Dividing Phlox
1. Prepare the Plant
Water the phlox thoroughly a day before dividing to soften the soil and reduce stress on the plant. This makes it easier to lift and divide.
2. Dig Around the Plant
Use a spade or garden fork to gently loosen the soil around the base of the plant. Start about 12 inches away from the crown to avoid damaging the roots.
3. Lift the Plant
Carefully lift the entire clump from the ground, supporting it with your hands or a garden fork. Shake off excess soil to better see the root structure.
4. Divide the Clump
Using pruning shears or a sharp knife, divide the root clump into smaller sections. Each section should have at least 3-4 shoots and a healthy root system. Be gentle to avoid damaging the roots.
5. Replant the Divisions
Plant each division at the same depth as the original plant, spacing them about 12-18 inches apart. Water thoroughly after planting to help settle the soil.
Additional Tips for Success
- Choose a cloudy day or plant in the late afternoon to reduce transplant shock.
- Apply a layer of mulch around the plants to retain moisture and protect roots during winter.
- Avoid dividing during extremely cold or hot weather to minimize stress.
- Fertilize lightly in early spring to promote healthy growth.
By following these best practices, you can ensure your phlox remains healthy and vibrant year after year. Proper division before winter not only rejuvenates your plants but also enhances your garden’s beauty for seasons to come.