Tip. Impatiens may drop their buds or fail to bloom if they are stressed by drought, receive too much sun or are planted in deep shade.
Deer often target impatiens (Impatiens spp.), and they have been known to cause severe damage to these beautiful flowering annuals. If you want to stop deer from eating impatiens, hardy in U.S. Department of Agriculture plant hardiness zones 9 to 11, chemical and nonchemical methods Read more
Powdery mildew disease primarily affects New Guinea impatiens. fungi initially cause small patches of white, powdery growth to appear on the upper sides of leaves. The patches gradually enlarge to form large areas of heavy, mealy gray to tan growth.
Second, New Guinea impatiens tolerate more sun than traditional bedding impatiens. New Guineas grow in full or part shade. They thrive in a spot that receives morning sunlight and afternoon shade. In warmest zones where summers are hot and humid, New Guinea impatiens definitely benefit Read more
New Guinea impatiens grow best with about 4 to 6 hours of afternoon shade. In northern areas of the . S. and Canada, or where day temperatures are more moderate, the plants can tolerate full sun.
New Guinea Impatiens is a popular houseplant that will bloom all winter long if its needs are met. Mist leaves if the air is dry but don't get water on flower petals or they will become spotted. Repot in the spring, using fresh potting soil.
Fortunately, New Guinea impatiens (Impatiens hawkeri) appear to be tolerant or resistant to downy mildew. The downy mildew disease that affects Impatiens spp. is caused by a fungal-like microscopic organism called Plasmopara obducens. This downy mildew is unique to impatiens.
Impatiens walleriana leaves that turn yellow, curl up and die may be infected with verticillium wilt. This fungus usually attacks during cool temperatures, but the damage may not show up until warmer weather. The impatiens walleriana plant may show symptoms on only one side.
Each plant will grow into a rounded mound, and if planted 18 inches (46 cm.) apart, they'll grow to fill in the entire space in a matter of weeks. Keep the plants in the front of the bed 12 inches (31 cm.) away from the Read more
Just once or twice, beginning first in midsummer, cut back the entire plant by four to six inches (10-15 cm.), or three inches (7.5 cm.) from the ground. Only do this if you see the plant becoming leggy. If it remains full and grows well, Read more
New Guinea impatiens prefer consistently moist soil. However, they cannot tolerate soil that is soggy or too dry. If the soil dries out completely between watering, your plant may wilt or lose flowers. A thorough drench once each week is usually enough for plants grown Read more
A: New Guinea impatiens can be grown indoors during the winter but leggy growth is a response to lower light levels indoors. Keep them in a bright sunny window or provide supplemental light to keep them going. Water throughout the winter as needed but do Read more
In USDA zones 10 through 12, these plants may stop blooming over summer, even when they're growing in the shade. In cooler USDA zones, New Guinea impatiens should begin blooming soon after planting outdoors after the final local average frost date.
New Guinea impatiens require moist, well-drained soils.
Sprinkle cinnamon, crushed bay leaves or black pepper around impatiens. Mint, cloves, or cayenne pepper may also do the trick. Try spraying area with 50/50 mix of apple cider vinegar and water, which can throw off ants' sense of smell.
Do not plant outside until all danger of frost has passed, preferably with night temperatures above 45 degrees Fahrenheit. They prefer day temperatures of 70 to 85 degrees and night temperatures of 55 to 65 degrees Fahrenheit. New Guinea impatiens thrive in the high-humidity zones Read more
Pest on Impatiens There are many pests that can affect impatiens flowers. Spider mites, mealybugs, aphids, and thrips are common and usually result in curled, distorted, or discolored leaves. Thrips will generally attack the flowers/buds of plants and may carry a virus that affects these Read more
Soil. New Guinea impatiens like a slightly acidic soil pH in the range of 6.0 to 6.5, but they are not terribly particular about it. They will need well-draining soil that holds moisture long enough for the roots to soak it up.
New Guinea impatiens do best in morning sun and afternoon shade. If the soil is dry or temperatures are extreme, they will need up to a half-day of shade or they may not bloom as well. The best outdoor location will have morning sun and Read more
New Guinea Impatiens seeds are slightly larger than the seeds of many other varieties of Impatiens, but they are still small. Pick them out with fingers or tweezers and keep them dry until you are ready to plant.
New Guinea impatiens (I. hawker) plants have much larger single flowers and darker green leaves than traditional impatiens. They do not bloom well in full shade. They thrive in part shade and will do well in full sun if they receive frequent watering during dry Read more
A basic feed is best when your water allows. If you have to use an acid feed like 20-10-20 to lower your soil pH, you may need to alternate with a calcium-based feed at a ratio of three acidic to one basic application. New Guinea Read more
New Guinea impatiens are beautiful, easy-care plants that are great for container gardening. Similar to traditional impatiens, New Guinea Impatiens will grow better when not exposed to full sun, so planting them in a container that is shaded is a great way to grow them.
Recommendations for Fertilizing Young Plants During the first 6 to 8 weeks after planting, 100 or 200 ppm N from a complete NPK fertilizer are good rates for New Guinea impatiens. If a slow-release fertilizer is applied at planting or shortly thereafter use no more Read more
New Guinea Impatiens respond favorably to supple mental magnesium. Apply eight ounces of epsom salts (MgS04> per 100 gallons ofwater once per month.
Too much sun will result in smaller and fewer blooms and leaf damage. Full sun often kills the plants. Be sure any container has adequate drainage holes; these plants are susceptible to root rot. Temperatures: New Guinea impatiens do not like cold.
New Guinea impatiens like a slightly acidic soil pH in the range of 6.0 to 6.5, but they are not terribly particular about it. They will need well-draining soil that holds moisture long enough for the roots to soak it up.
Over-watering impatiens may cause leaves to turn yellow. To prevent this, keep the soil moist between waterings. Alternatively, too little water may cause impatiens' leaves to turn yellow as well. If the soil is dry and yellow leaves appear, it's time to water the impatiens.
European gardeners have been dealing with this problem for several years since it can overwinter in the soil. Impatiens downy mildew infects common and double impatiens, but does not harm New Guinea impatiens or other plants.
New Guinea impatiens require moderate fertilization. Plants growing in pots or other containers should be fertilized approximately every 2 weeks with a water soluble fertilizer. Incorporation of a slow-release fertilizer into the soil prior to planting should be adequate for plants in landscape beds.
Impatiens are highly sensitive to drought and environmental stress, quickly wilting or dropping leaves, buds and flowers that can make it look like the plant is dying. Water your New Guinea impatiens immediately if the soil is even slightly dry to the touch.
They can become leggy over the summer, so it is good to pinch or scissor them back and they will flush back up again in a week or two. From partial shade to full shade, New Guinea Impatiens and standard Impatiens will give you an Read more
Water. These plants need regular water. Do not let them remain dry for extended periods or they will stop blooming, decline, and potentially die. New Guinea impatiens are not drought tolerant, but you don't want them sitting in wet soil for long periods of time Read more
It's best to mulch after you plant your impatiens rather than before, according to the University of Illinois Extension. A thick layer of about 2 to 3 inches, carefully applied to surround each plant, is ideal.
Rejuvenating impatiens that have become leggy and overgrown is as simple as a quick pruning. First, in order to keep your plants blooming all summer, pinch off the tops of stems after each flower has bloomed and faded. This deadheading encourages new blooms. Only do Read more
You can prune impatiens when it reaches the height of 6 inches or more. Pruning is important for the plant as it promotes new growth in the plant and improves its blooming. New Guinea impatiens prefer consistently moist soil. However, they cannot tolerate soil that Read more
Of all the possible reasons impatiens are not blooming, one of the most common is improper sun exposure. Impatiens plants bloom best with some shade, a requirement that often leads to misunderstanding. While some impatiens bloom well in full shade, for the most part they'll Read more
New Guineas grow in full or part shade. They thrive in a spot that receives morning sunlight and afternoon shade. In warmest zones where summers are hot and humid, New Guinea impatiens definitely benefit from light shade.
In hot summer months, this may mean daily watering that soaks deep into the ground. This plant can be a heavy feeder, so give it monthly feedings of a low-nitrogen plant food. This will encourage the plant to grow without discouraging any of the flower Read more
New Guinea Impatiens Care. Most gardeners grow New Guinea impatiens as an annual plant, purchasing them in pots to transfer to the garden. Expect your New Guinea impatiens to start blooming early in the season, if they aren't already in bloom when you buy them.