How to Grow a Venus Flytrap? Detailed Guide to Cultivation Methods and Precautions

The Venus flytrap is a “carnivorous plant”, arguably the fighter jet among plants. Its cultivation methods are generally divided into two types: open cultivation and enclosed cultivation, but whether open or enclosed, its requirements for light and soil are relatively high. Today, let's learn together with the editor about the cultivation methods and precautions for the Venus flytrap.

How to Grow a Venus Flytrap

Many flower enthusiasts use the tray watering method (also known as the “waist water” method) to cultivate Venus flytraps. When using this method, special attention must be paid to high summer temperatures. If the water tray at the base is exposed to strong sunlight, the water temperature in the tray will rise rapidly. The scalding water is absorbed through the bottom of the pot to the surface of the medium and evaporates, and the moisture cannot carry the heat away from the plant's roots. This is the main cause of “root rot” in Venus flytraps.

So we need to appropriately adjust the growing medium, choosing one that retains water, allows air circulation, and improves heat dissipation. The medium is as follows:

Place coarse-grained Kanuma soil or foam blocks or sponge blocks in the bottom quarter of the pot (absorbing water while maintaining ventilation and air permeability). The upper layer can use 100% pure sphagnum moss, or 40% medium or fine-grained Akadama soil, or 20% peat moss mixed with 20% Akadama soil (locking in moisture and maintaining humidity).

Since water evaporates too quickly during open cultivation) 60% medium and fine-grain mixed Kanuma soil, or 30% medium and fine-grain mixed Kanuma soil plus 30% medium-grain King Stone (to drain excess water after mixing with Akadama soil, so that the upper layer of the mixed medium still retains good air permeability). The water level in the tray should be about one quarter of the pot height. If the summer temperature exceeds 30°C, shade should be provided at 50% or the plant should be placed in soft, bright, indirect scattered light.

Venus Flytrap Cultivation Methods and Precautions

I. Cultivation Methods

1. Light Requirements

Sufficient light can make the Venus flytrap grow stronger. It needs at least 4 hours of direct sunlight per day. If the light duration is insufficient, at best the traps will grow smaller and the petioles will become slender; at worst it may cause the plant's death. If there is really a lack of sunlight in winter, a supplementary grow light can be used.

2. Water Requirements

Try to use pure water, rainwater, or other soft water. Use the tray method (also called the “waist water” method) to create a small environment similar to its native habitat.

3. Humidity Requirements

Humidity should be high, because the Venus flytrap's native environment is swampy grassland, so if grown at home, a similar environment needs to be created for it. Specifically, a large water tray can be used for the waist water method, which will increase the humidity around the plant. Alternatively, a layer of sphagnum moss can be added on the surface of the soil, which also helps maintain air humidity.

4. Soil Requirements

Venus flytraps prefer acidic environments. So the substrate should best be kept at an acidic pH of 3.5-5. Fertilizer-free peat moss mixed with perlite (2:1) or pure sphagnum moss are both excellent substrate choices. The substrate should preferably be replaced once every spring.

5. Temperature Requirements

Growing temperature: 15°C-35°C, optimal temperature: 21-35°C. If you want it to go dormant, you can control the temperature at around 5°C (0-8°C).

II. Precautions

1. Feeding

The Venus flytrap's growth energy comes from organic matter produced by photosynthesis during the day and a very small amount of inorganic salts. Eating insects is like fertilizing. It can make them grow a bit faster, but really do not overdo it or feed too frequently. And foods that humans enjoy, like chicken and beef, are very difficult for them to digest.

2. Fertilizing

Applying fertilizer directly into the substrate will cause the plant's death, because the root systems of carnivorous plants are extremely intolerant of salt. So if fertilizing, use low-concentration liquid fertilizer sprayed on the leaf surface.

Venus Flytrap Propagation Methods

1. Leaf cuttings: Peel an entire leaf from the mother plant and insert it at an angle or lay it flat on a clean substrate such as sphagnum moss. Maintain high humidity and bright light. Buds can grow in about 2 months.

2. Division: Venus flytraps frequently grow side shoots. When they grow large enough, the divided bulbs will naturally separate from the mother plant. At this point, they can be dug out and grown separately, or separated during repotting. (Sometimes buds also grow on the flower stalk, and these can also be grown like divisions.)

3. Sowing: Venus flytrap seeds should be sown as soon as possible after harvest. The longer the time, the lower the germination rate. Storage time should not exceed 6 months (most Venus flytrap seeds sold domestically are fake seeds, please be aware!). The suitable temperature for sowing is 15-30°C. Sprinkle seeds directly on the surface of a moist, clean substrate (pure sphagnum moss or mixed peat can be used). Do not cover with soil, or cover with 1-3 mm of fine peat or fine-grained Akadama soil to help anchor the root system. Maintain high humidity and bright light (a water tray can be placed under the pot to retain moisture). Germination occurs in about one month. Seedlings grow slowly and take 3-5 years to reach mature size. They can live for several decades.

Venus Flytrap Watering Methods

1. Choosing Water

When watering it, do not directly use tap water. This is also something that should not be done when watering most plants. Of course, we can use bottled water, but this costs too much, since it needs to be used frequently. An economical and simple method is to leave tap water out in the sun for a period of time before watering. In this way, substances in the water that are harmful to their health will be evaporated by the sun.

2. How to Determine Whether Water Is Needed

Many beginners think it needs relatively high moisture levels to grow normally, so they water it every day. However, this is the wrong approach. In daily care, we only need to keep the soil slightly moist. During the germination period, relatively high moisture should be maintained. The best time to water is in the evening or later. When summer temperatures are high, do not water too much, as it cannot absorb water at that time, which will cause its roots to rot and, in severe cases, death.

3. Waist Water

This is very beneficial for growing it. The so-called waist water means placing a water tray under the pot. The water level in the tray should preferably be at a height of 1 cm to 2 cm. This can maintain its humidity, but if the temperature is high, the water tray should be removed.

In summary, the Venus flytrap's propagation ability is still quite strong. If you want to increase their numbers, you can adopt the two propagation methods mentioned above. But if you want them to grow better, extra attention still needs to be paid to watering and fertilizing, and there are also certain requirements for the choice of water.