Table of contents:
- Why does arrowroot pick up leaves in the evening
- Is it necessary for arrowroots to have a rest period
- Which windows are best for arrowroot
- How to supplement calatheas and arrowroot
- How to feed arrowroots
- How to properly water arrowroot
Why does arrowroot pick up leaves in the evening
Arrowroots do not like when it is too sunny and hot, you can put them on the shelves opposite the window.
Absolutely all arrowroots "wave" their leaves, adjust to the light: during the day they catch the sun's rays, turn the leaves towards the light, and in the evening they raise the entire green mass vertically. If you look closely, you can see a place under each leaf for turning the leaves - there is a slight thickening in the upper part of the petiole. For such a miracle of nature, arrowroots are sometimes called praying plants. Moreover, in large plants, when the leaves rise and fall, they touch each other and a strong rustling is heard.
If a plant of arrowroot, ktenante or calathea collects leaves, it means that she is satisfied with everything in the care, and if this does not happen, then you need to think about what is wrong. Perhaps it is too light, bright sun, hot, not enough or too much water when watering.
Is it necessary for arrowroots to have a rest period
No, not at all necessary. Arrowroot - well suited for growing at home, because they grow easily all year round without a dormant period in the cool. They are quite satisfied with the usual room temperature, if the air from the radiators is not directed directly to the leaves. Those. it is unacceptable that the leaves of arrowroot or ktenants standing on the window hang over the edge of the window sill. If the plant does not fit the window, then you need to put the pot in the room and make additional lighting from one or several lamps nearby.
Which windows are best for arrowroot
Natural lighting changes in spring-summer and autumn-winter. From about the end of February to August, arrowroots need to be shaded from 12 to 17 hours on sunny days from direct rays. In cloudy, cloudy weather, you do not need to shade. Also, shading from direct sun is not required from October (and sometimes, if the autumn is very gloomy from September) to January. At this time of the year, the sun is already low, sunny days are not often, and daylight hours are short. At the same time, the rooms are warm and the plants continue to grow, so light is very important to them.
Therefore, shading is necessary only on the southern and western (southwestern) window sills in the spring and summer months. No shading is required on the north, northwest, east and even southeast windows. Arrowroot is dangerous in the afternoon hot sun, but not in the morning.
On windows with a northern orientation, which are also shaded from the street by trees or houses, for example, on the ground floor, additional lighting may be necessary in the months of a short day (in autumn, winter) and at the end of summer during the period of cloudy gloomy days.
How to supplement calatheas and arrowroot
The need for additional lighting of arrowroots can really arise if the plant has little light on the windowsill or in the room. Sometimes the bushes grow so large that they can only be placed on a shelf, table or closet in a room. The farther from the window, the less light. But it's one thing if you have a bright sunny room on the 6-10th floor, another thing is the 2-3rd floor of the north side and the house opposite. Therefore, to understand whether supplemental lighting is necessary for your plants, look at how the leaves grow and where they are directed. If there is not enough light, the stems and leaves are always directed towards the nearest light source - towards the lamp or window. For 2-3 months, the lack of light is clearly expressed where the plant is stretching. If there is enough light, the bush is even, lush, uniform.
You can illuminate arrowroot, calathea, stromant with fluorescent lamps (fluorescent lamps) or LED lamps. If the plant stands far from the window, then it is better when the lamp is not one, but at least two on different sides of the bush. The distance of the leaves to the lamps is about 10-15 cm, no more. Leaves will not be burned or injured from these lamps.
How to feed arrowroots
Arrowroot (ktenante, calathea, stromanthus) should be fed with a complex fertilizer containing not only nitrogen, phosphorus and potassium, but also a set of microelements in a chelated form. All arrowroots do not tolerate chlorine and fluoride exaggeration in water. Excess fluoride can be in tap water (if it is fluoridated or there are fertilizer plants, metallurgical plants, aluminum processing plants, etc. in your area), but besides this, plants get fluoride from the air and soil. With the accumulation of excess doses, fluorine compounds become toxic to plants, tissue necrosis is observed, as a rule, the edges and tips of the leaves dry out, and a brown border is formed.
In the group of fluoride poisoning, arrowroots (especially stromants, calatheas) have too acidic soil or store soil is used, which contains phosphorus fertilizers (usually there is no mark on the package). Therefore, if in your area there is no shortage of fluoride in tap water, then fertilize with fertilizers with a NPK ratio of 3: 2: 2. If there is a possibility that water is fluoridated in your area, or there is a natural excess of fluoride, if it is known that superphosphate has been added to the soil, then use fertilizers with the NPK formula 3: 1: 2, 4: 1: 2 or 3: 1: 3. Those. These are fertilizers, in which the proportion of nitrogen is greater than potassium and very little phosphorus.
In addition, keep the acidity level of the soil in the range of 6-6.5.
Read carefully what is written on the package with feeds. Just because a bottle or box of fertilizer says it's for ornamental foliage doesn't mean that fertilizer is right for you. The ratio of Nitrogen-Phosphorus-Potassium is different for all manufacturers. It is possible to recommend the fertilizer NPK Stimulus for ornamental deciduous plants with a share of NPK 6: 3: 6, also contains sulfur, magnesium, iron, copper, zinc, boron and molybdenum. Dilute 1 cap with 1.5 liters of water.
Usually lawn fertilizers have a suitable NPK ratio. For example, there is a liquid complex fertilizer Bona Forte for lawns with N: P: K in proportions of 7: 3.5: 7, also contains magnesium, boron, iron, cobalt, molybdenum, manganese, copper, zinc. But for arrowroots, this fertilizer must be diluted more strongly: 6 ml per 1 liter of water! It is sold in 1.5 liter bottles and will last for many, many years. You can measure it with a syringe (by the way, for a lawn it is diluted at a concentration of 12 ml per 1 liter of water). But the same fertilizer can be used to feed many other indoor non-flowering plants (chlorophytum, palms, ivy, etc.).
There are also special fertilizers for arrowroots, for example, "Dry mineral fertilizer Gilea for all arrowroots" is suitable - powder in a package of 2 g. It has excellent N: P: K in proportions of 16: 6: 13, additionally Mg, Zn, Co, Ca, Mo, Mn, Fe, Cu, B. But this fertilizer is less economical: The contents of a 2 g package must be dissolved in 2 liters of water. If you have a lot of arrowroot and houseplants in general, it is cheaper to buy lawn fertilizer.
You can also recommend the MASTER fertilizer for decorative foliage, in a package of 25 g, its NPK 24:10:15, plus microelements. It must be diluted at the rate of 5 g of the drug in 2 liters of water and water the plants with this solution once every 7-10 days.
So, choose, but remember: feeding should be carried out only in the spring-summer season, at intervals of 10-14 days. Only healthy plants in the growth phase can be fed. Do not feed on overdried soil, do not exceed the dose of fertilizers.
How to properly water arrowroot
Arrowroots love water procedures: pouring a warm shower, letting the water drain. Further watering after drying.
The concepts of "abundant" or "moderate" are rather vague. Therefore, let's turn to other terms. The soil for arrowroot should be well-drained - this means it can easily absorb water and dry quickly. It should not stick together, cement and turn into a monolith after watering. The picture of moisture should look like this: after watering, the soil quickly and evenly gets wet (in a matter of seconds), dries out within 3 days, no longer than 4 (faster in summer). At the same time, the top layer of the soil should be dry to the touch already on the second day (in depth it will be still wet), after the top layer of the earth dries up, we wait some more time and water again. If the soil on the surface, for some reason, has not yet dried out, even slightly damp, we wait, do not water. In summer, the drying period can be a day or two, but in autumn and winter it all depends on the temperature,if colder than 20 ° C, wait 4 days before watering.
The need for watering, more precisely in their frequency and abundance, directly depends on the humidity of the air and the rate of drying of the soil. The faster the earth dries, the more often you need to water it. If the air humidity is above 70% - this is usually not on rainy days in summer, then you need to water less often, with such humidity, arrowroots can easily tolerate complete drying of the soil. And with low humidity of 30-40%, more frequent watering is usually required. But we must be aware that frequent soil moisture does not compensate for the dry air. With too much watering in a pot with arrowroot or calathea, midges, mushroom mosquitoes will start, the soil will begin to sour, some nutrients will no longer be absorbed, and spots on the leaves will begin to appear. Arrowroot may not die from root rot, such as a ficus or one of the succulents, but it will be depressed and covered with spots.
Therefore, do not be afraid to let the earth in a pot with arrowroot, stromanthus, calathea dry out! Don't water too often, but raise the humidity. If you have one or two plants, place the pot on a wide tray, a tray of water, wet moss, pebbles. If there are a lot of plants, use a humidifier.