Heat temperatures and humidity are key to growing polka dot plants. Expect to water commonly except you get enough rainfall. Polka dot plants bloom sporadically, usually during the summer season, with small lilac or pink-colored flowers on spikes. Pinch off these flower spikes to maintain the plant’s vitality targeted on growing its vibrant foliage. Polka dot plants have develop into a problematic, aggressive grower in Queensland and New South Wales, Australia. This plant also wants regular feeding all through the spring to fall growing season. In the U.S., it is not invasive and is safe to plant in-floor. Within the U.S., it's not invasive and is secure to plant in-floor. Choose a planting site that is not in low mild or a lot mild or else you possibly can anticipate the foliage colours to fade, lessening the plant's ornamental value. When grown outdoors, polka dot plants like a spot with some shade. Vibrant, indirect light is ideal indoors, resembling from an east- or south-facing window. Polka dot plants desire organically rich soil with good drainage. Mix in some pumice or perlite to enhance soil drainage. An all-objective natural potting mix is usually suitable for these plants. Avoid letting the soil utterly dry out, which may cause the foliage to wilt and make the plant struggle to outlive. These plants like a moderate quantity of moisture in the soil at all times. Water the plant when the highest half-inch of soil has dried out. Give sufficient water to moisten the soil evenly. By no means let the soil develop into soggy, which can cause root rot and kill the plant. You might want to water container plants more regularly than in-floor plants. Barely scale back plant pots watering within the winter and resume your routine as soon as progress picks up again in the spring. These plants like humid circumstances, preferring a minimum humidity level of 50 p.c. Polka dot plants are only hardy in USDA rising zones 10 and 11, preferring temperatures over 60 levels F. They must be planted outside in the spring after the risk of frost has passed and introduced inside for those who plan to overwinter them well before the first frost of the fall. Feed container plants with an organic fertilizer designed for houseplants once a month through the warm growing season. In the event you want to raise the humidity, you can mist your plant’s leaves or place its pot on a tray crammed with pebbles and water as long as the bottom of the pot isn’t touching the water. These plants are heavy feeders. If planting in-floor, combine a layer of compost into the soil every spring. Inside the main species, Hypoestes phyllostachya, there are numerous varieties; all are bred for their leaf coloration. Polka dot plants tend to get leggy. You’ll need a pair of fresh, sharp scissors or pruning shears to maintain the plant from growing long, lanky branches. To promote a bushier progress behavior, lower or pinch again the highest two leaves on every stem weekly. Though flowers sound good, it is best to clip them when they start showing to increase the growing season of your polka dot plant. The flowers aren't as ornamental because the leaves anyway. The plant will die off or enter dormancy as soon as it has completed flowering. Actively trimming can help the plant to grow healthier and extra vigorously. Polka dot plants will be grown from seeds or stem cuttings. If you're starting from seeds, sow them in the early spring. You may propagate from cuttings anytime; nevertheless, your success fee of rising a healthy plant will likely be greatest within the spring or summer time. Trimming your polka dot plant is a great way to maintain a bushier, healthier plant. If you reside in a non-tropical local weather, your polka dot plants will die as soon as the first frost comes. Should you notice your plant is dying outdoors, stem reducing is a superb method to revive your plant indoors. Let's look at learn how to propagate your polka dot plant from a stem reducing rooted in water or moist soil. 1. To propagate the polka dot plant using stem cuttings, you'll need a sterilized pair of scissors or shears. You have to a clear jar of water or a pot with a nicely-draining potting mix or peat moss. Optionally, you can use a rooting hormone. 2. Cut a bit of stem from any a part of the plant but be certain that you may have a minimum of a 2-inch piece. If rooting in soil, you will need clear plastic wrap. A 4-inch piece is right. 3. If rooting in a jar of water, keep the water level even by including water because it evaporates. It might take two weeks or a number of months before the basis grows about 2 inches. Each different week, change the water totally to inhibit bacterial or algae progress until the basis grows as much as 2 inches lengthy. 4. If rooting within the soil, place the recent-reduce end of your reducing into potting combine or peat moss and keep it evenly moist. 5. Cowl the cutting with clear plastic wrap until the stem develops leaves or different apparent development. Optionally, you may place some rooting hormone on the contemporary-minimize finish earlier than planting it about an inch deep in the soil to help the rooting course of. It may possibly take a number of weeks to a number of months. 6. To test if the cutting has set roots, gently tug at the chopping to see if it has give or if roots keep the stem rooted in the soil. Solely transplant the chopping outside as soon as the risk of frost is gone. 7. The plant's reducing is able to be repotted once the reducing has established a number of inches of latest progress. Place the plant in a sunny location. Sow seeds on the surface of heat, moist soil. The seeds should sprout in a few days. Solely plant outdoors after the risk of frost is over. Once the seedling has grown several inches-usually in a couple of weeks-it is ready to transplant into a bigger container or plant outdoors. Its roots have nowhere to grow. If a plant outgrows its container, it turns into pot bound or root sure. A positive signal your plant has outgrown its pot is when the roots begin growing out of the drainage holes. The most effective time to repot a polka dot plant is within the spring after its dormant interval. Gradually enhance the plant's pot measurement. Too giant a pot encourages the roots to deal with rising below the soil line, which is not good for the plant's upward development. Since this plant is a tropical plant, it will not survive frosty weather. The new pot shouldn't be greater than two inches wider and not more than two inches deeper than the previous pot. If saved outdoors in a container, carry these plants indoors to a partially sunny indoor spot. Before the first frost, you possibly can minimize stems from the plant, root them indoors in a small potting container or jar of water. In the spring, you may replant it in the garden after the menace of frost is over. Widespread pests that get pleasure from polka dot plants are mealybugs, aphids, and whiteflies. Typical diseases related to polka dot plants are root rot, leaf-spot diseases, and powdery mildew. Telltale signs of these bug infestations or disease include foliage that's discolored, leaves that have holes or otherwise seem unhealthy, and small bugs moving on the plants. The shortening of daylight hours tells the plant that the growing season is coming to an in depth, encouraging its flower growth. Its small lilac or pink-coloured racemes or flower stalks are insignificant and never identified for their scent or look. This plant flowers in late summer season or early fall. When flowers emerge, it triggers plant to begin to go dormant. So, in most cases if you need your plant to last longer, it is best to cut or clip off the flowers as they begin forming. Here are the most typical problems and a few potential solutions. Curling leaves and fading leaf coloration are usually attributable to too much solar or too little. Polka dot plants are comparatively straightforward to develop when you get their rising circumstances proper. But, it needs to be kept out of scorching, direct sunlight. Hypoestes phyllostachya wants vibrant, oblique light to keep up its color. If it is in a container, move it to a shadier spot. If it is in-floor, think about giving it some cowl. Inadequate water and humidity can cause the polka dot plant's leaves to turn brown or start drooping. Also, an excessive amount of sun can burn the leaves. Onerous water and overfertilization are different causes for a polka dot plant's leaves turning brown. Overwatering causes yellowing of the plant's leaves. Adjust your humidity or watering habits to see if you possibly can revive the plant. Overwatering may lead to different severe issues like root rot and powdery mildew. In the event you notice leaves yellowing, scale back the amount of water you give the plant and ensure you're using potting soil with good drainage. Soggy soil causes the yellowing of the leaves and leaf drop. Polka dot plants are simple to keep up and propagate. Are polka dot plants straightforward to care for? How fast does polka dot plant develop? It could generally be difficult getting its rising situations excellent, but once established, it's normally good to go. These plants have a moderate progress charge, though they tend to get choosy with their growing circumstances and tend to slow down their development fee if they aren't excellent. Polka dot plants usually full their life cycle within a yr. How long can polka dot plant stay? However, you can prolong their life by propagating stem cuttings at the top of the rising season.