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Blazing star, also known as Liatris, is a popular perennial flower admired for its vibrant purple spikes and long-lasting blooms. Over time, however, some blazing star plants may show signs of aging, such as reduced flowering or weak stems. Fortunately, gardeners can rejuvenate these plants through effective division techniques.
Understanding the Need for Division
Division is a natural method of propagating and revitalizing perennial plants. For aging blazing star, division helps to:
- Increase plant vigor
- Encourage new growth
- Improve flowering performance
- Manage overcrowding
When to Divide Blazing Star
The best time to divide blazing star is in early spring or immediately after it finishes flowering in late summer to early fall. Dividing during dormancy ensures minimal stress and promotes healthy root development.
Tools and Materials Needed
- Garden spade or shovel
- Garden fork
- Clean pruning shears
- Gloves
- Mulch and compost
Step-by-Step Division Process
Follow these steps to successfully divide your blazing star:
1. Prepare the Area
Water the plant thoroughly a day before dividing to soften the soil. Clear surrounding weeds and debris for easy access.
2. Dig Around the Plant
Use a garden spade or fork to carefully loosen the soil around the base of the blazing star. Dig a wide circle to avoid damaging roots.
3. Lift the Clump
Gently lift the entire root clump from the ground, supporting it with your hands or a garden fork.
4. Divide the Root Clump
Use clean pruning shears or a sharp knife to cut the root mass into sections. Each division should have several stems and a healthy root system.
5. Replant the Divisions
Plant each division at the same depth as the original, spacing them appropriately. Water thoroughly after planting.
Caring for Divided Blazing Star
Ensure proper care to promote establishment and growth:
- Water regularly during dry spells
- Apply mulch to retain moisture and suppress weeds
- Fertilize with a balanced fertilizer in early spring
- Remove dead or damaged stems to encourage new growth
Benefits of Division
Dividing blazing star not only revitalizes aging plants but also provides an opportunity to propagate new plants. It helps maintain a healthy, vigorous garden display and extends the lifespan of your blazing star collection.