Calathea is a succulent plant that loves a humid environment and is often used to decorate indoor spaces. Hydroponic cultivation is a very convenient method and is not difficult for beginners. In this article, we will introduce the detailed steps and precautions for hydroponic cultivation of Calathea.
I. Selecting Calathea
If you want to propagate Calathea using hydroponic cultivation, you first need to purchase a healthy Calathea. When selecting, pay attention to the quality of the leaves; choose a Calathea with vibrant colors, smooth surfaces, and no pests or diseases.
II. Preparing Hydroponic Equipment
You can choose a transparent glass or plastic container for hydroponics. When selecting, consider the size and depth of the container, as this will affect the root growth of the Calathea. At the same time, you also need to prepare a transparent blue or green plastic bag to cover the Calathea when necessary.
III. Preparing the Hydroponic Solution
You can use tap water, purified water, or distilled water for the hydroponic solution. If the water quality is poor, you should use reverse osmosis water or other filtered water. When preparing the solution, pay attention to the concentration to avoid the effects of too high or too low a concentration on the growth of Calathea.
IV. Cutting the Calathea Stem
Take a healthy stem of moderate length and cut it into 5-10 cm sections, ensuring each section has a leaf. When cutting, use clean, sharp tools to avoid harming the plant.
V. Cleaning the Stem
Clean the cut stem to remove excess soil and dirt. While cleaning, gently shake the stem to help it absorb nutrients more easily.
VI. Placing in the Hydroponic Container
Place the cleaned Calathea stem into the prepared hydroponic container. Each stem should be inserted vertically into the water, and ensure that the leaves are not completely submerged.
VII. Covering with a Plastic Bag
Place a transparent plastic bag over the hydroponic container to maintain humidity and temperature. You can also seal the container opening with the plastic bag to prevent water evaporation and the influence of external impurities.
VIII. Placing in a Suitable Location
Place the hydroponic container in a bright location, but avoid direct sunlight. The room temperature should be kept between 20°C-25°C to promote the growth of Calathea.
IX. Changing the Hydroponic Solution
Change the hydroponic solution every 1-2 weeks. When changing, clean the container and the stems to avoid contamination and bacterial growth.
X. Fertilizing
After the Calathea has grown new roots, you can start fertilizing. Choose an organic liquid fertilizer or a water-soluble fertilizer and apply it according to the instructions.
XI. Maintaining Humidity
Calathea loves a humid environment, so maintain the humidity of the hydroponic solution and the plastic bag. If you find the solution is too cloudy or has an odor, change it promptly.
XII. Preventing Yellowing Leaves
If the Calathea leaves start to turn yellow, it may be due to the hydroponic solution being too concentrated or the roots lacking oxygen. In this case, you can change the solution or add more air holes at the bottom of the container.
XIII. Paying Attention to Sterilization
When using the hydroponic solution, pay attention to disinfection and sterilization to prevent the invasion of bacteria and viruses. When changing the solution, clean the container and the stems and disinfect them with alcohol.
XIV. Paying Attention to Light
Calathea loves a bright environment but should avoid direct sunlight. If the leaves show signs of sunburn, adjust the position or cover them with a transparent plastic bag.
XV.
Calathea is a very suitable plant for hydroponic cultivation and can add a green element to the indoor environment. During the hydroponic process, pay attention to factors such as water quality, humidity, and light, and follow the correct steps to operate. With these methods, you can easily cultivate a healthy Calathea.