Caring for your new plants: All Coleus are tender and cannot survive freezing temperatures. It is best not to place them outside for the season until they have been hardened off and the average overnight low temperatures stay above 60 degrees. This might be a few weeks after your last average spring frost date.
A coleus plant is hardy, able to survive in both a container indoors and in the soil outside. However, being a warm weather loving plant, it will not survive a harsh, cold winter. When the weather begins to turn cold you will need to take some precautions to ensure a healthy coleus in the spring.
Subsequently, question is, how cold can impatiens tolerate? Frost Tolerance The succulent stems and thin leaves of impatiens do not endure temperatures of 32 degrees Fahrenheit or below. Even with temperatures below 36 degrees, low elevations may collect frost and cause partial defoliation of impatiens.
Also Know, can I bring coleus in for the winter?
Growing Coleus Houseplants If you’re growing coleus in pots, you could overwinter them as houseplants by bringing the whole container inside for the winter. Keep in mind that your coleus plant is used to growing outside all summer. So, the plant may droop or even drop a few leaves after bringing them indoors.
How do you take care of coleus in the winter?
Overwinter Full Plants Pruning the coleus during the winter can help preserve an attractive shape and reduce spindly growth. Feed coleus plants and rooted cuttings with half-strength time-release fertilizer during the winter. Keep the plants indoors until night temperatures stay above 50 degrees Fahrenheit.
What temperature will kill coleus?
Temperatures in the 50s and 40s are survivable, but sustained cool temperatures will adversely affect the vigor and color of the Coleus and make it susceptible to disease. Freezing temperatures are deadly to Coleus and even a light frost will destroy the plant.
Does coleus freeze easily?
Coleus has no tolerance for frost and is usually one of the first annual plants to die in the fall. After it freezes, your coleus may have slimy blackened leaves and limp stems. The leaves may become twisted and dried or turn downward. In most cases, the plant is dead and cannot be revived.
Should I let my coleus flower?
Pinch just above a set of leaves or branching junction for the best appearance; don’t leave a stub. Some gardeners leave the small flowers, but it’s best to pinch them off to direct more energy into stem and foliage growth. Coleus left to flower may lose vigor as the plant puts energy into seed production.
Does coleus grow back every year?
Outside USDA zones 9 through 11, coleus is a beautiful spring-through-fall annual. As a tropical plant, coleus can’t bear a chill and will blacken and die once the weather dips much below 50 degrees Fahrenheit. Keep your coleus looking beautiful through its growing season by pinching back the stem tips periodically.
Is Coleus poisonous to dogs?
The most likely effects from nibbling on coleus are vomiting and diarrhea, but anorexia and depression can also result. Consuming cyclamens can result in vomiting. The most toxic parts of the plant are the roots, but it’s best to keep all parts out of the mouths of dogs and cats.
Can you plant coleus in the ground?
Soil is not an issue, but drainage is. Coleus grow readily in rich to poor soils—ranging from peaty sand to rocky clay—but prefer moist, well-drained soil. Dry soil will result in wilting. One problem they won’t recover from is root rot, so don’t grow them in poorly drained areas.
Does coleus like sun or shade?
Conditions: Coleus are tender tropicals that are generally grown as annuals because they are hardy only in USDA Hardiness Zone 11. They like warm soils with decent drainage. They are not happy in overly dry conditions. Coleus will grow in full sun to medium shade, but their colors are most vivid in full sun.
Do coleus plants spread?
Do not crowd coleus close together. They spread out to about 16 inches across, so keep the leaves from shading each other by planting at least 12 inches away from each other in the garden. Some coleus prefer bright sun, but most do best and achieve the most vivid color in partial shade.
How do you get seeds from a coleus plant?
Tie a colorful string or yarn around one or two of the healthiest coleus plants. Harvest seeds when the petals have dropped from the flowers and the remaining seed pods are plump, dry and brown. Snip the seed pod with scissors or garden shears. Place the sack in a cool, dry location.
How often should you water coleus?
Soil that is too dense may cause the roots to rot. In hot months, coleus grown in pots outdoors will need watering once or twice a day. If they are grown indoors, watering every two or three days is usually sufficient unless the indoor air is especially dry.
Can you take cuttings from coleus?
The coleus cutting should root in two to three weeks. After taking your cuttings, place them in a small glass of water and place this in bright indirect light. Change the water every other day. Once you see roots grow, you can transplant the coleus cuttings into soil.
How do you take care of a coleus plant indoors?
Indoor Coleus Care Water regularly to keep the soil slightly moist – never bone dry and never soggy. Feed the plant once every week or two during spring and summer, using a water-soluble fertilizer diluted to half-strength. Place the pot on a tray with a layer of wet pebbles if the air in your home is dry.
How do I bring my coleus back to life?
Move the coleus plant to a site that receives full to partial shade or up to about three hours daily of direct sunlight. The leaves burn and dry out if the coleus is exposed to too much sunlight. If grown in a container, simply move the container to a new site.
Can you save coleus seeds?
Squash all of the seed pods with your fingers to break them open. The ripe coleus seeds will pop easily out of the pods. Store the coleus seeds in a paper envelope in a cool, dry location out of direct light until you’re ready to plant them in the spring.