In time, mock orange shrubs may get gnarly looking or become less productive. If this happens, you can give the whole shrub a hard rejuvenation pruning by cutting it all back to 6-12 inches (15-30.5 cm.) from the ground. This should be done in winter or early spring while the plant is still dormant.
Spots on the leaves that appear black or brown and look saturated with water are a symptom of bacterial blight,caused by the bacterium Pseudomonas syringae. Bacterial blight most often attacks mock orange trees when weather coosl and moisture is high. It causes dieback of shoots Read more
Temperature Requirements The Mock Orange Bushes are tolerant of the temperatures below zero degrees. They can survive in the hardiness zone between 4 to 9. They can also be grown in cold regions where the temperature during the winter can go below zero degrees.
Pruning a mock orange each year after it blooms will keep the plant healthy and looking good. You most likely will not get any blooms that spring, but the plant will grow back healthier and provide blooms the following season.
Why do my Mock Orange trees have yellow leaves and is growing slowly. assuming soil pH is around 6.5, if the yellowing is all over the plants or mainly older leaves then it is nitrogen deficiency - apply Thrive soluble to moist soil every 2 Read more
At spring time, Mock Orange's big white flowers will offer exquisitely pleasant smell. It is somewhat drought resistant once established, disease and pest free and is highly deer resistant.
One possible pest of mock orange is the black scale, a type of soft scale insect. This insect usually appears on the plant as an immobile bump, where it uses a tiny, strawlike mouth part to suck out plant fluids. A heavy infestation can cause Read more
They enjoy areas with full sun to partial shade and moist, well-drained soil. Adding compost to the soil will help improve most issues. When planting mock orange bushes, dig your planting hole deep enough to accommodate all of the roots.
The flowers are said to resemble orange blossoms, which is how the shrub got its common name of mock orange. They are rich with nectar that attracts butterflies and other pollinators. Mock orange shrubs have a fairly quick growth rate and can gain around 2 Read more
Growing Conditions for Mock Orange Shrubs They enjoy areas with full sun to partial shade and moist, well-drained soil. Adding compost to the soil will help improve most issues. When planting mock orange bushes, dig your planting hole deep enough to accommodate all of the Read more
Culture: New plants fare best in good, loose soil, to which plenty of leaf mold or composted cow manure has been incorporated. Additional fertilizer is not required. Water deeply once each week during the first season of growth. Philadelphus will adapt itself to full sun, Read more
Maintenance is generally very simple for mock orange shrubs. They don't often have issues with pests or diseases. And established shrubs will only need watering during periods of drought. Plan both to fertilize and prune your shrub annually.
Leaf miners are the larvae of many different insects, such as flies or beetles, that lay eggs on the undersides of leaves. When the eggs hatch, the larvae feed on the leaves, tunneling through the leaf surface, leaving holes.
Mock orange shrubs have a fairly quick growth rate and can gain around 2 feet per year. They are best planted in the early fall but also can be planted in the spring.
Prune out dead, diseased and broken branches in spring. Prune to shape the shrub after flowering. Mock orange can get over grown and may need rejuvenation pruning periodically. To rejuvenate, prune the shrub back severely after flowering to stimulate new growth and to bring it Read more
Your mock orange shrub will require consistent moisture until it's established, and though it is somewhat drought tolerant, the bush prefers to be kept in moist conditions. Mulching the area around the shrub will help the soil retain moisture and minimize watering needs.
Grow mock orange plants purchased from a local garden center and plant from spring to early fall in well-drained soil amended with compost. It's very adaptable to many types of soil conditions. Mock orange flowers best in full sun. Space plants 6 to 8 feet Read more
Give the mock orange about 1 inch of water per week, with more water in hot, dry weather and less water in the cooler winter months. Allow the top 2 inches of soil to dry out between watering. Mock orange is drought-tolerant and does not Read more
Mock orange may also refer to Pittosporum tobira, which is a specific species of flowering plant in the Pittosporum family. These plants are non-toxic and are listed on several gardening sites as dog-friendly.
The most likely cause of mock orange failing to flower is pruning at the wrong time of year. If you prune too late or too early, you risk cutting off the stems that would have flowered. The new stems that grow from these shoots will Read more
Rabbits, deer, mice and voles enjoy the tender twigs and leaves, as well as the blossoms. Pest repellents can have some effect and can be chemical, mechanical or natural. While the plant is attractive to pests, it also draws honeybees and butterflies when it is Read more
Remove a three-inch stem from a mature Mock Orange, maintaining several leaves at the tip of each cutting. Mock Orange also may be propagated by seeds, but the seeds need to be stratified. You will have to keep them in the refrigerator in a sterile Read more
Mock oranges are not usually heavy feeders, though a water-soluble, all-purpose fertilizer may be used in late winter/early spring as needed if you feel the plant is not growing as well as it should. Annual pruning will keep the plant looking good and help with Read more
The Botrytis cinerea fungus causes gray mold on mock orange shrubs, as well as on most other types of flowering shrubs. It can cause brown lesions on the mock orange's blossoms and leaves. The disease favors moist conditions.
Powdery mildew is a fungus that appears as a white dust on affected leaves. Warm humid days and cool humid nights cause the mildew to flourish. The best way to prevent powdery mildew is to avoid overhead watering, to water in the mornings and to Read more
Prune these spring flowering shrubs soon after it has bloomed. Top prune the plant to improve the shape and reduce its size, but be careful not to remove more than 30% of the top growth.
Usually, problems arise due to water issues — overwatering results in root rot and underwatering results in stunted growth and inadequate blossoms. Keep a check on the moisture level of the soil. If the soil is about 2” inches dry, water the plant. If you Read more
Nectria twig blight is a fungal disease of mock orange trees. Caused by the fungus Nectria cinnabarina, the infection appears as cankers on mock orange plants; cankers are areas of infected, dead tissue, according to West Virginia University at Davis. Leaves die and severe shoot Read more
Mock orange shrubs like organically rich soil. They can tolerate a wide range of soil types—including sandy, clay, and loamy soils—as long as they have good drainage.
One possible pest of mock orange is the black scale, a type of soft scale insect. Honeydew hosts the development of unsightly sooty mold and attracts ants, which in turn protect the scales from their natural enemies.
Since mock orange is a spring-flowering shrub and its buds developed last year, plan to prune it immediately after it flowers. If you wait too long and prune your shrub later in the summer or fall, you run the risk of pruning off next years' Read more
The pollen may cause allergic rhinitis and trigger airway conditions in susceptible people.
Get rid of large numbers of ants tending the scales using baits or by wrapping the mock orange trunk with a strip of fabric or paper coated with a sticky substance that will trap ants.
Come winter, this shrub will need some protecting if you live in a cold area. Prune the mock orange in late summer. Remove any dead, damaged or diseased foliage. Allow the rest of the leaves to die back naturally during the fall.
Hardy in zones 4-8, mock orange shrubs bloom in late spring to early summer. Like lilacs, mock orange should be pruned right after flowers fade. Pruning too late in the season can cut off next year's buds.
Mature Size The sweet mockorange grows to a height of 10–12' and a spread of 10–12' at maturity.
Japanese mock orange is a broadleaf evergreen shrub or small tree that can withstand brief periods of frost, which might occur in USDA zone 9, where minimum winter temperature is about 25 degrees Fahrenheit. However, frost that lasts for a day or more can cause Read more
Bacterial blight most often attacks mock orange trees when weather coosl and moisture is high. It causes dieback of shoots and leaf deformation. It appears as a white dust on affected leaves. Prune off affected areas, spray with copper fungicides or sulfur, water in the Read more
Although the Mock orange by itself is not toxic, it is important to be alert to possible risks in the environment and unusual behaviors by your canine. Safe plants may attract unsafe insects or be sprayed with toxic pesticides, and eating too much vegetation can Read more
Kathleen Miller is a Master Gardener and Horticulturist with over 30 years experience in gardening and sustainable farming. Mock orange (Philadelphus coronarius) is a deciduous shrub (it loses its leaves in the fall) that has a dense, rounded growth habit.