Dividing Spring Flowering Bulbs: A Comprehensive Guide
Why Divide Spring Flowering Bulbs?
As spring flowering bulbs mature, they naturally divide and spread. However, overcrowded plantings can lead to reduced flowering and eventually the decline of the bulbs. Dividing and replanting these bulbs ensures optimal growth and abundant blooms for years to come.
When to Divide Spring Flowering Bulbs
The ideal time to divide spring flowering bulbs is when the foliage is just about gone and the plant is no longer actively growing. This is typically in late spring or early summer. Dividing at this time allows the bulbs to rest and recharge before the next growing season.
How Often to Divide Spring Flowering Bulbs
The frequency of dividing spring flowering bulbs depends on the type of bulb and its growth rate. Daffodils can live for generations without division, while tulips tend to fade out after a few years. A good rule of thumb is to watch how well the bulbs are blooming. If an established patch of bulbs starts to bloom less and less, it’s time to divide them.
Equipment and Materials for Dividing Spring Flowering Bulbs
- Garden trowel or cultivator hand rake
- Mesh bags or dry peat moss (optional)
Step-by-Step Guide to Dividing Spring Flowering Bulbs
1. Choose the Right Time
The best time to move bulbs is when the foliage is just about gone and the plant is no longer actively growing.
2. Dig Up the Bulbs
Dig around the plants, a few inches away from the foliage, and deep enough to get underneath the bulbs. Carefully rock the gardening tool until the bulb comes free from the soil. Avoid pulling on the leaves.
3. Divide the Bulbs
Carefully pull the small bulbs, called offset bulbs, from the base of the plant. The larger the offset bulbs are, the sooner they will flower.
4. Inspect the Original Bulb
Check the original bulb for firmness. If it appears healthy, replant it; otherwise, discard it.
5. Plant the Small Bulbs
Plant the small offset bulbs with adequate spacing to avoid the need for re-digging and replanting in the future. Alternatively, you can plant them in a holding bed for a couple of years before transplanting them to a permanent spot.
6. Store the Bulbs (If Necessary)
If you cannot plant the bulbs immediately, store them in a mesh bag or dry peat moss in a cool, dark, and ventilated spot. Check them periodically for rotting or drying out. Plant them the following fall.
Troubleshooting Common Problems When Dividing Spring Flowering Bulbs
- Damaged Bulbs: Take care not to damage the bulbs when digging or dividing them. If a bulb is damaged, discard it.
- Overcrowding: Avoid planting bulbs too close together. Overcrowding can lead to reduced flowering and disease problems.
- Poor Drainage: Spring flowering bulbs prefer well-drained soil. If your soil is heavy or clay-like, amend it with compost or sand to improve drainage.
- Pests and Diseases: Bulbs can be susceptible to pests such as aphids and thrips, and diseases such as botrytis and fusarium. Monitor your bulbs regularly for signs of pests or diseases and treat them promptly.
Tips for Dividing and Replanting Spring Flowering Bulbs
- Use a sharp garden trowel or cultivator hand rake to avoid damaging the bulbs.
- Replant the bulbs at the same depth they were originally planted.
- Water the bulbs well after planting to settle the soil around them.
- Fertilize the bulbs in the spring with a balanced fertilizer.
- Deadhead spent flowers to prevent the plant from putting energy into seed production.
By following these steps, you can successfully divide and replant spring flowering bulbs to ensure years of abundant blooms in your garden.