Heat temperatures and humidity are key to growing polka dot plants. Anticipate to water commonly until you get ample rainfall. Polka dot plants bloom sporadically, usually during the summer time, with small lilac or pink-colored flowers on spikes. Pinch off these flower spikes to maintain the plant’s energy 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 needs common feeding all through the spring to fall growing season. In the U.S., it isn't invasive and is secure to plant in-ground. In the U.S., it is not invasive and is safe to plant in-floor. Choose a planting site that is not in low gentle or an excessive amount of gentle or else you can anticipate the foliage colours to fade, lessening the plant's ornamental worth. When grown outdoors, polka dot plants like a spot with some shade. Brilliant, oblique light is good indoors, such as from an east- or south-facing window. Polka dot plants desire organically wealthy soil with good drainage. Combine in some pumice or perlite to improve soil drainage. An all-objective organic potting combine is typically appropriate for these plants. Avoid letting the soil fully dry out, which may cause the foliage to wilt and make the plant battle to survive. These plants like a moderate quantity of moisture in the soil at all times. Water the plant when the top half-inch of soil has dried out. Give sufficient water to moisten the soil evenly. Never let the soil turn into soggy, which may cause root rot and kill the plant. You might want to water container plants more regularly than in-ground plants. Slightly scale back watering within the winter and resume your routine as soon as development picks up again within the spring. These plants like humid conditions, preferring a minimal humidity degree of fifty %. Polka dot plants are only hardy in USDA rising zones 10 and 11, preferring temperatures over 60 degrees F. They should be planted outdoors in the spring after the threat of frost has handed and introduced inside in case you plan to overwinter them nicely before the primary frost of the fall. Feed container plants with an organic fertilizer designed for houseplants once a month during the heat rising season. For those who need to raise the humidity, you'll be able to mist your plant’s leaves or place its pot on a tray full of pebbles and water so long as the underside of the pot isn’t touching the water. These plants are heavy feeders. If planting in-ground, 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 are inclined to get leggy. You’ll want a pair of unpolluted, sharp scissors or pruning shears to keep the plant from growing lengthy, lanky branches. To advertise a bushier development behavior, reduce or pinch again the highest two leaves on each stem weekly. Although flowers sound good, it's best to clip them when they begin showing to extend the growing season of your polka dot plant. The flowers aren't as ornamental as the leaves anyway. The plant will die off or enter dormancy as soon as it has finished flowering. Actively trimming may also help the plant to develop healthier and extra vigorously. Polka dot plants could be grown from seeds or stem cuttings. If you're starting from seeds, sow them within the early spring. You'll be able to propagate from cuttings anytime; nevertheless, your success price of growing a wholesome plant will be finest in the spring or summer season. Trimming your polka dot plant is a good way to keep up a bushier, healthier plant. If you reside in a non-tropical climate, your polka dot plants will die once the first frost comes. Should you notice your plant is dying outdoors, stem chopping is a superb method to revive your plant indoors. Let's study how one can propagate your polka dot plant from a stem slicing rooted in water or moist soil. 1. To propagate the polka dot plant utilizing stem cuttings, you'll need a sterilized pair of scissors or shears. You will want a clear jar of water or a pot with a effectively-draining potting mix or peat moss. Optionally, you should utilize a rooting hormone. 2. Lower a bit of stem from any part of the plant but make sure that you may have not less than a 2-inch piece. If rooting in soil, you'll large outdoor plant pots need clear plastic wrap. A 4-inch piece is good. 3. If rooting in a jar of water, keep the water degree even by including water as it evaporates. It could take two weeks or several months before the foundation grows about 2 inches. Every other week, change the water completely to inhibit bacterial or algae growth until the foundation grows as much as 2 inches lengthy. 4. If rooting within the soil, place the contemporary-minimize end of your chopping into potting mix or peat moss and keep it evenly moist. 5. Cowl the cutting with clear plastic wrap until the stem develops leaves or different apparent growth. Optionally, you may place some rooting hormone on the fresh-lower finish earlier than planting it about an inch deep in the soil to aid the rooting course of. It may well take several weeks to several months. 6. To check if the chopping has set roots, gently tug at the chopping to see if it has give or if roots keep the stem rooted in the soil. Only transplant the slicing exterior as soon as the risk of frost is gone. 7. The plant's cutting is ready to be repotted once the slicing has established a number of inches of latest growth. Place the plant in a sunny location. Sow seeds on the floor of heat, moist soil. The seeds should sprout in a number of days. Only plant outdoors after the threat of frost is over. Once the seedling has grown several inches-often in a few weeks-it is ready 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 certain signal your plant has outgrown its pot is when the roots begin growing out of the drainage holes. The very best time to repot a polka dot plant is in the spring after its dormant period. Regularly increase the plant's pot size. Too large a pot encourages the roots to concentrate on rising below the soil line, which isn't good for the plant's upward growth. Since this plant is a tropical plant, it won't survive frosty weather. The brand new pot shouldn't be greater than two inches wider and no more than two inches deeper than the outdated pot. If saved outdoors in a container, deliver these plants indoors to a partially sunny indoor spot. Earlier than the first frost, you possibly can minimize stems from the plant, root them indoors in a small potting container or jar of water. Within the spring, you possibly can replant it within the garden after the risk of frost is over. Widespread pests that take pleasure in polka dot plants are mealybugs, aphids, and whiteflies. Typical diseases associated with polka dot plants are root rot, leaf-spot diseases, and powdery mildew. Telltale indicators of these bug infestations or disease embody foliage that is discolored, leaves which have holes or in any other case appear unhealthy, and small bugs moving on the plants. The shortening of daylight hours tells the plant that the growing season is coming to a detailed, encouraging its flower progress. Its small lilac or pink-coloured racemes or flower stalks are insignificant and not recognized for his or her scent or appearance. This plant flowers in late summer season or early fall. When flowers emerge, it triggers plant to begin to go dormant. So, usually if you need your plant to last longer, it is best to chop or clip off the flowers as they begin forming. Listed below are the most typical issues and some potential solutions. Curling leaves and fading leaf colour are usually caused by an excessive amount of solar or too little. Polka dot plants are comparatively straightforward to grow once you get their growing conditions right. However, it must be stored out of sizzling, direct sunlight. Hypoestes phyllostachya wants shiny, oblique light to take care of its coloration. If it is in a container, transfer it to a shadier spot. If it is in-floor, assume about giving it some cover. Insufficient water and humidity can cause the polka dot plant's leaves to show brown or begin drooping. Additionally, too much sun can burn the leaves. Laborious water and overfertilization are different causes for a polka dot plant's leaves turning brown. Overwatering causes yellowing of the plant's leaves. Modify your humidity or watering habits to see if you can revive the plant. Overwatering may also result in other extreme issues like root rot and powdery mildew. When 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 straightforward to keep up and propagate. Are polka dot plants easy to care for? How fast does polka dot plant grow? It could possibly typically be troublesome getting its growing circumstances good, but once established, it's often good to go. These plants have a reasonable growth rate, although they are likely to get choosy with their growing conditions and are likely to slow down their progress rate if they don't seem to be excellent. Polka dot plants normally complete their life cycle inside a yr. How lengthy can polka dot plant stay? But, you'll be able to prolong their life by propagating stem cuttings at the end of the rising season.