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Alliums are a popular choice for adding height and color to gardens, especially in spring and early summer. When their bulbs become crowded or after flowering, dividing them is a great way to propagate new plants and rejuvenate existing ones. Proper storage of divided alliums before replanting is essential to ensure healthy growth and successful establishment.
Why Divide Alliums?
Dividing alliums helps prevent overcrowding, which can lead to smaller flowers and weaker plants. It also allows gardeners to share or expand their garden collection. Dividing is best done in late summer or early fall when the foliage has died back, and the bulbs are dormant.
Preparing for Storage
Before storing divided alliums, carefully dig around the clump to lift the bulbs from the soil. Gently shake off excess dirt and inspect the bulbs for any signs of disease or damage. Discard any soft, moldy, or rotten bulbs to prevent spreading problems during storage.
Dividing the Alliums
Use a clean, sharp knife or garden shears to separate the bulbs. Each division should have at least one healthy bulb and some roots. If bulbs are large, you can cut them into smaller sections, ensuring each piece has a viable growth point. Allow the cut surfaces to callus over for a day or two before storage.
How to Store Divided Alliums
- Choose a cool, dry location: Store the bulbs in a well-ventilated space with temperatures between 50-60°F (10-15°C).
- Use breathable containers: Place bulbs in mesh bags, paper bags, or old pantyhose to allow air circulation.
- Avoid moisture: Keep bulbs away from damp areas to prevent rot and mold.
- Check periodically: Inspect stored bulbs regularly for signs of mold or decay and remove any affected bulbs.
Timing for Replanting
Replant divided alliums in early fall, about 4-6 weeks before the first hard frost. This allows the bulbs to establish roots before winter. Prepare the soil by loosening it and enriching it with compost. Plant the bulbs at a depth of about 2-3 times their diameter, spacing them appropriately for their size.
Tips for Successful Replanting
- Water after planting: Ensure the soil is moist to help bulbs settle in.
- Mulch the area: Apply a layer of mulch to protect bulbs during winter and retain moisture.
- Label your bulbs: Mark planting areas to keep track of different varieties.
- Be patient: Alliums may take a year or two to reach full flowering size after division.
With proper storage and care, dividing and replanting alliums can keep your garden vibrant and healthy for years to come. Enjoy watching your garden bloom with these striking, easy-to-maintain plants.