Philodendron Pinnatifidum
Often called the Horsehead Philodendron or simply the "Pinnate Philodendron," this Brazilian native is a true architectural masterpiece of the plant world. Unlike the many Philodendrons that scramble up trees as vines, this species is "self-heading," meaning it grows upright with a sturdy, trunk-like base, making it a perfect statement piece for home interiors.
The Philodendron pinnatifidum belongs to a group of plants capable of thermogenesis. During pollination, the plant’s spadix (the flowering spike) can actually generate heat, rising several degrees above the ambient air temperature to help disperse its scent and attract specific scarab beetles!
Here are steps you can follow to grow Philodendron Pinnatifidum (also known as Selloum or Bipinnatifidum):


To fertilize this plant, you can use a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium. Dissolve the fertilizer in water according to the instructions on the package. Fertilize your plant once a month during the growing season, which is from spring to fall. Avoid fertilizing during the winter months when the plant is dormant. Apply the fertilizer to the soil around the base of the plant, being careful not to get any on the leaves. Water the plant immediately after fertilizing to help prevent fertilizer burn. Always follow the instructions on the fertilizer package and use gloves if necessary to protect your skin.
When it comes to choosing soil for the plant in question, it is important to consider a few key factors. Firstly, it is best to use well-draining soil that does not hold onto excess water. This will prevent the roots from becoming waterlogged and suffering from root rot. Additionally, the soil should be nutrient-rich, with a good balance of organic matter and minerals. A pH of around 5.5 to 6.5 is ideal for this plant. It is also important to avoid using soils that contain too much sand or clay, as these can lead to poor drainage and hinder root development. Finally, it is a good idea to mix in some perlite or vermiculite to increase the soil's porosity and aeration. Overall, a good soil mix for this plant would consist of a blend of high-quality potting soil, perlite, and organic matter such as peat moss or compost.
One way to propagate this plant is through stem cuttings. Take a healthy stem and make a cut just below a node with a clean, sharp pair of scissors or pruning shears. Remove any leaves from the bottom third of the stem. Dip the cut end of the stem in rooting hormone powder and plant it in a well-draining soil mix. Keep the soil moist and place the cutting in bright, indirect light. Ensure the temperature and humidity are suitable for the plant to root, which may take a few weeks to several months. Once roots have formed and the plant has acclimated to its new environment, it can be transferred to a larger pot or planted outside if climate permits.
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