The Walking Iris, scientifically known as Neomarica, is admired for its iris-like blooms and unique propagation habit. While primarily thriving in soil, it can be grown in water for specific purposes like propagation or temporary display. This method is effective for rooting plantlets that develop on spent flower stalks. However, it is not a permanent solution for mature plants due to their specialized needs.
Setting Up Walking Iris in Water
Propagating a Walking Iris in water begins by selecting healthy plantlets, which are miniature versions of the parent plant that form at the ends of flower stalks. These plantlets naturally develop small aerial roots, indicating their readiness for separation. Snip these plantlets from the mother plant, ensuring a small section of the stalk remains attached.
To encourage rooting, place the prepared plantlets in a clean container filled with filtered, room-temperature water. Clear glass containers are preferred as they allow for easy observation of root development. Position the container in a location that receives bright, indirect light, avoiding direct sunlight which can be too intense for the developing plantlets.
Ongoing Care for Water-Grown Walking Iris
Maintaining a Walking Iris in a water environment requires consistent attention. Regular water changes are important, ideally every few days, to replenish oxygen and prevent the water from becoming stagnant, which could lead to algae growth or root rot. Monitoring the water for cloudiness or any unpleasant odor signals the need for an immediate water change.
While water can sustain initial root growth, it lacks the complete spectrum of nutrients found in soil. For plants intended to remain in water for longer periods, a diluted liquid fertilizer formulated for houseplants can be added to the water every two to four weeks. Providing bright, indirect light remains important for the plant’s photosynthetic processes and overall vigor.
Advantages and Challenges of Water Culture
Water culture offers several benefits, particularly for enthusiasts. It provides an easy and effective way to propagate new plants from plantlets, allowing gardeners to expand their collection or share. Clear containers offer an aesthetic display and allow fascinating observation of root development.
However, water culture presents significant challenges for long-term health. Water alone does not offer the comprehensive range of micronutrients and stable physical support that soil provides, which are crucial for sustained, robust growth. Plants kept in water for extended periods may show signs of nutrient deficiencies, such as yellowing leaves, and can be susceptible to root rot if water quality is not diligently maintained. The overall vigor and size of a water-grown plant are often reduced compared to those grown in a suitable soil medium.
Moving Water-Grown Iris to Soil
Due to water culture limitations, transitioning a water-rooted Walking Iris plantlet to soil is often the next step for continued growth. The plantlet is ready for transplanting once roots are one to two inches long. Select a well-draining potting mix; Walking Iris prefers soil that retains moisture but avoids waterlogging.
Carefully plant the rooted plantlet, ensuring roots are spread and covered. After planting, water thoroughly to settle the soil. For the first few weeks, maintain consistent soil moisture and provide bright, indirect light to help the plant acclimate. This careful transition minimizes shock and promotes successful establishment.