Heat temperatures and humidity are key to rising polka dot plants. Anticipate to water commonly except you get ample rainfall. Polka dot plants bloom sporadically, usually during the summer time, with small lilac or pink-coloured flowers on spikes. Pinch off these flower spikes to maintain the plant’s vitality centered on growing its vibrant foliage. Polka dot plants have change into a problematic, aggressive grower in Queensland and New South Wales, Australia. This plant also wants regular feeding throughout 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 protected to plant in-ground. Decide a planting site that's not in low light or an excessive amount of gentle or else you can expect the foliage colors to fade, lessening the plant's ornamental worth. When grown outdoors, polka dot plants like a spot with some shade. Vivid, indirect mild is ideal indoors, such as from an east- or south-dealing with window. Polka dot plants prefer organically wealthy soil with good drainage. Mix in some pumice or perlite to improve soil drainage. An all-objective natural potting combine is usually appropriate for these plants. Keep away from letting the soil fully dry out, which may cause the foliage to wilt and make the plant struggle to outlive. These plants like a average amount of moisture in the soil always. Water the plant when the top half-inch of soil has dried out. Give enough water to moisten the soil evenly. Never let the soil turn out to be soggy, which can cause root rot and kill the plant. You might want to water container plants more continuously than in-floor plants. Barely cut back watering within the winter and resume your routine once development picks up again within the spring. These plants like humid situations, preferring a minimum humidity level of 50 p.c. Polka dot plants are solely hardy in USDA rising zones 10 and 11, preferring temperatures over 60 degrees F. They must be planted outdoors within the spring after the menace of frost has passed and introduced inside when you plan to overwinter them nicely before the primary frost of the fall. Feed container plants with an natural fertilizer designed for houseplants as soon as a month during the warm growing season. Should you want to boost the humidity, you'll be able to mist your plant’s leaves or place its pot on a tray filled with pebbles and water as long as the underside of the pot isn’t touching the water. These plants are heavy feeders. If planting in-floor, mix a layer of compost into the soil every spring. Within the primary species, Hypoestes phyllostachya, there are a lot of varieties; all are bred for their leaf coloration. Polka dot plants are likely to get leggy. You’ll need a pair of unpolluted, sharp scissors or pruning shears to keep the plant from developing long, lanky branches. To promote a bushier progress behavior, lower or pinch again the highest two leaves on each stem weekly. Though flowers sound nice, it is best to clip them when they start showing to increase the rising season of your polka dot plant. The flowers aren't as ornamental as the leaves anyway. The plant will die off or enter dormancy once it has finished flowering. Actively trimming may help the plant to develop healthier and extra vigorously. Polka dot plants might be grown from seeds or stem cuttings. If you are beginning from seeds, sow them within the early spring. You'll be able to propagate from cuttings anytime; however, your success fee of growing a healthy plant will probably be greatest within the spring or summer. Trimming your polka dot plant is a great way to take care of a bushier, healthier plant. If you reside in a non-tropical local weather, your polka dot plants will die once the first frost comes. If you happen to notice your plant is dying outdoors, stem cutting is a good method to revive your plant indoors. Let's look at how one can propagate your polka dot plant from a stem cutting rooted in water or moist soil. 1. To propagate the polka dot plant using stem cuttings, you will want a sterilized pair of scissors or shears. You have to a clear jar of water or a pot with a well-draining potting mix or peat moss. Optionally, you need to use a rooting hormone. 2. Minimize a bit of stem from any part of the plant but be sure you will have at least a 2-inch piece. If rooting in soil, you will want clear plastic wrap. A 4-inch piece is ideal. 3. If rooting in a jar of water, keep the water degree even by including water because it evaporates. It might take two weeks or a number of months earlier than the basis grows about 2 inches. Every other week, change the water fully to inhibit bacterial or algae development till the basis grows as much as 2 inches long. 4. If rooting in the soil, place the contemporary-cut end of your reducing into potting mix or peat moss and keep it evenly moist. 5. Cover the reducing with clear plastic wrap until the stem develops leaves or different obvious development. Optionally, you may place some rooting hormone on the recent-reduce finish before planting it about an inch deep within the soil to help the rooting process. It may possibly take a number of weeks to a number of months. 6. To test if the chopping has set roots, gently tug at the slicing to see if it has give or if roots keep the stem rooted within the soil. Solely transplant the cutting outdoors once the risk of frost is gone. 7. The plant's chopping is able to be repotted as soon as the chopping has established a number of inches of recent growth. Place the plant in a sunny location. Sow seeds on the surface of warm, moist soil. The seeds ought to sprout in just a few days. Only plant outdoors after the menace of frost is over. Once the seedling has grown a number of inches-normally in a few weeks-it is able to transplant into a bigger container or plant outdoors. Its roots have nowhere to develop. If a plant outgrows its container, it turns into pot certain or root certain. A positive signal your plant has outgrown its pot is when the roots start rising out of the drainage holes. The best time to repot a polka dot plant is within the spring after patio plants its dormant period. Step by step increase the plant's pot size. Too massive a pot encourages the roots to focus on rising under the soil line, which is not good for the plant's upward progress. Since this plant is a tropical plant, it won't survive frosty weather. The brand new pot shouldn't be more than two inches wider and not more than two inches deeper than the previous pot. If kept outdoors in a container, deliver these plants indoors to a partially sunny indoor spot. Earlier than the first frost, you can minimize stems from the plant, root them indoors in a small potting container or jar of water. In the spring, you'll be able to replant it in the garden after the risk of frost is over. Frequent pests that take pleasure in 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 indicators of these bug infestations or disease embody foliage that's discolored, leaves which have holes or in any other case appear unhealthy, and small bugs transferring on the plants. The shortening of daylight hours tells the plant that the rising season is coming to an in depth, encouraging its flower development. Its small lilac or pink-coloured racemes or flower stalks are insignificant and not known for his or her scent or look. This plant flowers in late summer or early fall. When flowers emerge, it triggers plant to start to go dormant. So, generally if you'd like your plant to last longer, it is best to chop or clip off the flowers as they start forming. Listed below are the most typical problems and a few potential options. Curling leaves and fading leaf colour are typically caused by a lot sun or too little. Polka dot plants are relatively straightforward to grow once you get their growing situations proper. But, it needs to be saved out of scorching, direct sunlight. Hypoestes phyllostachya wants vivid, oblique gentle to keep up its coloration. If it is in a container, transfer it to a shadier spot. If it's in-ground, suppose about giving it some cover. Inadequate water and humidity could cause the polka dot plant's leaves to show brown or begin drooping. Additionally, too much sun can burn the leaves. Exhausting water and overfertilization are other reasons 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'll be able to revive the plant. Overwatering also can lead to different severe problems like root rot and powdery mildew. When you notice leaves yellowing, cut back the quantity 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 easy to maintain and propagate. Are polka dot plants straightforward to care for? How fast does polka dot plant grow? It may generally be troublesome getting its rising circumstances excellent, however once established, it is often good to go. These plants have a reasonable progress price, although they are likely to get choosy with their rising conditions and are inclined to decelerate their development rate if they aren't perfect. Polka dot plants usually full their life cycle within a year. How lengthy can polka dot plant dwell? However, you may prolong their life by propagating stem cuttings at the end of the growing season.