Sowing and growing seeds
For good germination of seeds and an increase in the percentage of their germination (it should be remembered that the germination of predator plants is 50-60%, which is relatively small among plants), before sowing, it is necessary to carry out cold stratification of the seeds. To do this, the seeds of the Venus flytrap must be placed in a container with a napkin or gauze moistened with a fungicide solution, or simply on the ground. Then the container with a napkin/soil with seeds must be put in the refrigerator (not a freezer!) For 4-8 weeks. During this time, make sure that the cloth or soil does not dry out.
After stratification is completed, the seeds can be sown in small containers filled with a clean soil mixture for predator plants (moss hafnium, perlite and coconut substrate). It is important that the soil is not caked. It is necessary to carefully spread the seeds on the surface of the soil and sprinkle them with a thin layer. Do not bury! Then the container should be covered and put in a warm, illuminated place. The temperature should be maintained within 25-27 ° C, and the duration of lighting should be 14-16 hours. Germination lasts 2-4 weeks. It should be remembered that some seeds can begin to germinate after 2-3 months, and sometimes up to a year (but this is an exception)! After the appearance of more than one leaflet, you should begin to gradually “air” the plants. Then you can carefully transplant them into individual pots. When transplanting, care must be taken not to damage fragile roots. The substrate with growing seeds should be constantly moist. Humidification should be carried out with distilled water from below. See details in “Watering”.
As a soil for these plants, it is best to use moss-sphagnum, perlite and coconut substrate in a ratio of 1 to 3. Before using perlite, it is advisable to soak it in distilled water for a week. Also, as soil, you can use a mixture of horse peat and pure quartz sand, a ratio of 2 to 1. Before using quartz sand, it is advisable to wash it in running water. Only quartz sand should be used. The use of any sand other than quartz can lead to the death of the plant.
The planting pot should be at least 10-12 cm deep and should not be too narrow, but not too wide. In a pot with a diameter of 75 mm, 4-5 young seedlings can be placed.
These plants should be replanted annually if the water for irrigation contains a large number of dissolved salts (up to 50 mg / l) or every two years if their quantity is low (5 mg / l). When transplanting, one must be very careful not to provoke the operation of traps.
The soil for the Venus flytrap should be constantly moist. Humidification should always occur from below. If you water the soil from above, this can lead to soil compaction and a lack of oxygen to the roots. It is necessary to put the pot with the plant on a water tray so that the drainage holes of the pot are completely covered. For irrigation, use only distilled water. Do not allow drying or excessive waterlogging of the soil. If necessary, you can spray plants from the sprayer a couple of times a week.
Venus flytrap requires a high level of lighting. She needs direct sunlight for at least 4-5 hours a day. However, prolonged exposure to sunlight (especially in the summer afternoon) should also be avoided. To protect against direct rays, you can stretch the gauze in several layers above the plant to disperse them. If the plant receives less than 4 hours of sunlight per day and is in an insufficiently lit place, additional lighting with lamps is required. You can illuminate with fluorescent lamps, with a power of at least 40 W from a distance of 15-20 cm. The lighting duration is 14-16 hours during the growing season. When lighting a plant with lamps, you should avoid rotating the pot with the plant or changing the location of the light source. With good bright lighting in the fresh air, the inner walls of the traps turn red.
Temperature and humidity
The temperature should be maintained at 22-27 ° C. Venus flytrap can tolerate a higher temperature, but not higher than 35 ° C. The air should be fresh, but drafts should not be allowed. Many recommend keeping the Venus flytrap in indoor aquariums and terrariums, arguing that it needs high humidity to grow. This is not entirely true, because Venus flytrap can also grow well with relatively low humidity if its roots are constantly in moist soil. Humidity can be maintained in a wide range – from 40 to 70%. In closed aquariums, at high temperatures, humidity and lack of good ventilation, the plant can hurt and even die.
Venus flytrap can not be fed with any fertilizer! You can occasionally feed only live insects of the appropriate size (at least half the size of the trap itself). Avoid feeding insects with hard chitinous shells (bugs), as well as insects that can gnaw through the trap. Do not feed the Venus flytrap with earthworms, as well as with a bloodworm or tubule, as they contain too much moisture, which can lead to decay of traps. In no case should you feed meat or sausage!
For adult plants growing in the room, 2-3 insects for the whole summer will be enough. Those who are on the street can not be fed at all, because they are able to feed themselves. With the onset of an autumn cold, feeding should be stopped before the onset of spring.