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Gladiolus is a popular flowering plant known for its tall spikes of vibrant blooms. Over time, these plants can become crowded, leading to fewer flowers and weaker growth. Dividing gladiolus corms is a simple gardening task that can rejuvenate your plants and promote better blooms each season.
Understanding Gladiolus Corms
Gladiolus grow from corms, which are underground storage organs similar to bulbs. Each corm produces new corms and offsets annually. As the plant ages, the corms can multiply and become crowded, reducing flowering potential. Dividing these corms helps to manage plant health and encourages vigorous growth.
When to Divide Gladiolus Corms
The best time to divide gladiolus corms is in the fall, after the foliage has died back. Alternatively, you can do it in early spring before planting. Dividing during dormancy minimizes stress on the plant and allows for better recovery and growth in the upcoming season.
Tools Needed
- Garden fork or shovel
- Sharp garden knife
- Clean pruning shears
- Gloves
- Container for storing divided corms
Steps to Divide Gladiolus Corms
Follow these steps to successfully divide your gladiolus corms:
1. Digging Up the Corms
Carefully dig around the base of the gladiolus plant using a garden fork or shovel. Lift the clump out of the ground gently to avoid damaging the corms.
2. Cleaning the Corms
Brush off excess soil and inspect the corms for signs of disease or rot. Discard any damaged or soft corms to prevent spreading issues.
3. Separating the Corms
Using a sharp knife or pruning shears, carefully cut or break apart the corms at natural divisions. Each healthy corm should have roots and a growing point. Be gentle to avoid damaging the corms.
4. Preparing for Storage or Replanting
Allow the divided corms to dry in a cool, well-ventilated area for a few days. If storing for winter, keep them in a paper bag or mesh container in a dry, dark location.
Replanting Divided Corms
In spring, replant the healthy corms about 4 to 6 inches deep in well-draining soil. Space them approximately 6 inches apart. Water thoroughly after planting and provide full sun for optimal growth.
Benefits of Dividing Gladiolus Corms
- Encourages stronger, more vibrant blooms
- Prevents overcrowding and disease
- Creates new plants for sharing or expanding your garden
- Rejuvenates aging plants for better growth
Regularly dividing your gladiolus corms ensures a healthy, colorful display season after season. It is a simple but effective way to maintain the vitality of your garden and enjoy abundant blooms each year.