There are several factors that can prevent gladiolus from blooming, including the size of the corms, fertilization practices, and pest problems. Let’s explore each of these factors in detail.
1. Corm size: One common reason for gladiolus not blooming is planting small, undersized corms. These corms may produce leaves but fail to produce flowers. It is important to select and plant larger corms, as they have a higher chance of blooming successfully. If you come across small corms while planting, it is best to set them aside and save them for next year’s garden. By doing so, you allow these smaller corms to grow and reach flowering size over the course of two seasons.
2. Fertilization practices: Proper fertilization is crucial for gladiolus to bloom. If the soil lacks essential nutrients, it can hinder flower formation. It is recommended to amend the soil with organic matter, such as compost, before planting the corms. This enriches the soil and provides the necessary nutrients for healthy growth and blooming. Additionally, applying a balanced fertilizer specifically formulated for flowering plants during the growing season can further support flower production.
3. Pest problems: Pests can also pose a threat to gladiolus blooms. Common pests include thrips and spider mites. Thrips are tiny insects that feed on the flower buds, causing them to fail to open or appear distorted. Spider mites, on the other hand, can infest the leaves and suck the sap, weakening the plant and impacting its ability to bloom. Regularly inspecting the plants for signs of pests and taking appropriate measures, such as using insecticidal soap or neem oil, can help prevent or control infestations.
In my personal experience, I once planted gladiolus corms that were quite small. While they grew into healthy plants with lush foliage, they did not produce any flowers. I learned the importance of selecting larger corms for optimal blooming. On subsequent occasions, I made sure to choose larger corms, and the results were much more satisfying, with beautiful flowers adorning my garden.
To summarize, gladiolus may not bloom due to factors such as small corm size, inadequate fertilization, and pest problems. By planting larger corms, providing proper fertilization, and addressing pest issues, you can increase the chances of your gladiolus plants blooming successfully. Remember to save smaller corms for future growth and consider their potential for blooming after a couple of seasons.
