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, there is no need to cut back.
Be sure any container has adequate drainage holes; these plants are susceptible to root rot. Temperatures: New Guinea impatiens do not like cold. These plants are extremely sensitive to improper watering. They wilt quickly but usually revive if watered soon after wilting.
Fortunately, for cat lovers, impatiens are non-toxic to cats. They make lovable companions, but cats can drive their owners batty by eating houseplants. It is good for cat owners to know that impatiens are nontoxic to cats, according to the American Society for the Prevention Read more
Pruning of the Flowers Usually, impatiens do not require pinching back of the blooms as it can shed its own flowers. Still, occasional pinching off blooms helps to redirect the energy of the plant towards the growth of new blooms. Next, pinch off the new Read more
A white, fuzzy growth frequently appears on the underside of leaves during humid weather conditions. Powdery mildew disease primarily affects New Guinea impatiens. The Oidium spp. fungi initially cause small patches of white, powdery growth to appear on the upper sides of leaves.
Temperature and Humidity 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 of 10, 11, and 12.
Impatiens downy mildew is caused by the fungus-like water mold Plasmopara obducens. This organism is commonly first introduced into a garden on infected impatiens transplants. It can also be introduced by windborne spore-like structures called sporangia. These spores can be found in soil and in Read more
Usually a sticky substance on the leaves is a sign that sucking insects are present on the plant. Spider mites leave a tell-tale webbing on the undersides of leaves, especially where the leaf meets the stem. Carefully inspect your plants for the webbing. Most likely Read more
These plants are extremely sensitive to improper watering. They wilt quickly but usually revive if watered soon after wilting. Fertilize: New Guinea impatiens will benefit from an application of slow-release fertilizer when planted or a light feeding every two weeks with a balanced water soluble Read more
Impatiens produce a sweet nectar that may attract ants. Ants may also farm aphids on impatiens. While ants are not cited as the most destructive or common pest for impatiens, their presence is sometimes a nuisance to gardeners.
Repot plants. You'll get the most blooms by keeping your impatiens slightly pot-bound, so move up to a bigger pot only when the roots fill the pot. Use a pot with drainage holes to prevent overwatering, which can cause root rot.
Fertilizer. Since New Guinea impatiens bloom all season, they will need some supplemental fertilizer. Give them a dose of your favorite water-soluble food every three to four weeks.
These succulent, branched perennial herbs grow up to 1'3" tall, mounding with lower leaves up off the ground. New Guinea Impatiens tolerate full sun, but are a water guzzler and tend to look wilted when heat loads are high and water is less plentiful, making Read more
It's possible to grow New Guinea impatiens as an outdoor perennial in USDA zones 10 to 12. Avoid planting them outdoors as an annual until night temperatures remain above 45° degrees Fahrenheit.
Impatiens rooting can also be achieved with water. In fact, impatiens cuttings root easily using this method. Simply remove any lower leaves and place the cuttings in a glass or vase of water, up to the first couple of nodes. Place it in a bright Read more
New Guinea impatiens are heavy feeders, so add a good amount of organic matter to the soil at planting time or before. Plant at the same level they are in their pots. Once in the ground, give them a good drink of water to help Read more
SunPatiens Spreading Corona New Guinea Impatiens will grow to be about 30 inches tall at maturity, with a spread of 30 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 26 inches apart.
As a general rule, impatiens planted in flower beds benefit from watering once every week. Water deeply enough to saturate the roots. During periods of hot, dry weather, impatiens may need water more frequently. If the top of the soil feels dry or if the Read more
Although they cannot tolerate frost, damaged plants often regenerate growth in the spring by developing new sprouts around their lower stems, explains San Marcos Growers. New Guinea hybrids (I. The plants often stop blooming when temperatures climb into the mid 80s or higher.
Impatiens generally don't require deadheading as they are a self-cleaning plant that naturally sheds spent blooms, according to North Carolina State University Extension. However, even impatiens can benefit from deadheading if the plant has become stressed and has lost the majority of its blooms at Read more
First, in order to keep your plants blooming all summer, pinch off the tops of stems after each flower has bloomed and faded. Only do this if you see the plant becoming leggy. If it remains full and grows well, there is no need to Read more
Many plants are toxic to cats and dogs, but cheerful impatiens (Impatiens wallerana) aren't toxic to pets. This annual is typically used as a flowering houseplant, or in flower beds or window boxes, placing the plant right in the middle of cat territory.
The fruit is not ornamentally significant. SunPatiens Spreading Corona New Guinea Impatiens will grow to be about 30 inches tall at maturity, with a spread of 30 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 26 Read more
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.
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.
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
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.