This makes an excellent perennial for late . Because the hardy hibiscus is a herbaceous perennial, it dies back to the ground during the winter. Hardy hibiscus is so tough the plant will come back year after year as far north as zone 5. This hibiscus is hardy to USDA Zone 5 with minimal winter protection. Hibiscus is commonly propagated from cuttings or from seeds. Water. If it were me, I would sink the pot in the soil, in your garden or whereever. Hardy Hibiscus and Temperature. Hibiscus moscheutos is a herbaceous perennial plant, meaning that the foliage dies back to the ground each fall, and then sprouts fresh new shoots the following spring.Hardy dinner plate hibiscus plants are one of the very last herbaceous perennials to break dormancy and sprout up in the spring. The ideal time to grow hibiscus in Florida is early spring, Although, those in South Florida can almost plant year-round. Hardy Hibiscus plants should be covered in winter when grown in areas with cold temperatures and snow. Their crinkled, overlapping petals unfurl as the countless, near-black buds open to become wide and slightly cupped. Pruning . If your hibiscus has dull medium green heart shaped leaves, dinner plate sized white, pink or red flowers with HUGE, bomb shaped buds (2-4″ in length! Four species of hardy hibiscus are native to North Carolina, and even the species of hardy hibiscus that are not native grow well there, as the state lies in USDA zones 6 to 8. Hibiscus Hardy hibiscus are considered a perennial plant, not a shrub, so they will die down to the ground each winter. They die down completely in the winter, and are slow to emerge in the spring. All varieties of hardy hibiscus are native to areas with cold, harsh winters. Hardy hibiscus is easy and simple to care of, provided you stick to some basic plant care regimes. Deadheading will improve the appearance of the plant. Keeping these plants watered will result in larger flowers and lush foliage. Sensational winter hardy variety of a tropical favorite. When winterizing perennials, keep in mind that the root system is the most vulnerable to cold damage. So all it takes to bring your tropical hibiscus in for winter is a little planning, a bright spot, and regular watering. And they include strains such as Rose of Sharon and Rose Mallow. This will help the plant to generate more flowers. It attracts butterflies and perennial hibiscus has the largest flowers of any perennials! Blooms mid summer to frost with up to 50 flowers on a single plant. In wintering a hardy hibiscus, just add up to four inches of mulch material over the topsoil. Hibiscus are heavy feeders and require a balanced fertilizer such as 20-20-20 or 10-10-10. Deadhead spent blooms and cut stems back 3-4" in late Autumn. If you water more than this, you may damage the roots. In areas that receive a hard frost, these species will die back to the ground in winter, regrowing in the spring. Perennial Hibiscus plants are mostly native to swampy areas and can be grown in wet soil along the edge of a pond, but they are also very adaptable and grow well in standard garden conditions. Their Latin name is Hibiscus moscheutos. This is a shrub that blooms in late summer. Question by gradiance3g October 28, 2006. Hardy hibiscus is suitable for hardiness usda zone 4 to 8. Planting Instructions: Dig a hole large enough to accommodate the roots without bending them. Hardy hibiscus benefits from warm temperatures for bud growth, so if it's a cold spring or summer, growth will be slower. Feed the hibiscus with a potassium fertilizer in late fall/early winter. Most perennial Hibiscus varieties enter a dormant stage near the end of fall, which typically lasts through the winter season. Watering. Perennial hibiscus are hardy perennials in zones 4-9. Therefore, you can prune the plant to the ground during the fall season, even though the branches may still appear to be healthy. Hardy hibiscus need very little care over the winter, they are root hardy to about zone 5 with no protection. Do not give it a nitrogen at this time - nitrogen will encourage new leafy growth that will only be damaged by cold weather or lost during the winter. Send to a friend. Growing in zone 4 (think Minnesota, Wisconsin and the like) to zone 9 (tropical climates like Florida), rose mallow bears some of the largest flowers of any perennials. New growth emerges in spring from the root tops. T he giant rose mallow has the largest flowers . The Rose of Sharon is also a hibiscus (Hibiscus syriacus) hardy in zones 4 or 5 through 8 or 9. Hardy hibiscus are most often known for their HUGE, multicolored blooms, which can reach 10-12 inches in diameter — the size of a large dinnerplate — and thus its nickname. The first thing to remember about hibiscus winter care is that hibiscus in the winter will need less water than it does in the summer. Hibiscus is my favorite potted plant, and today I want to share my tips on how to take care of potted hibiscus in cold weather. Huge, exotic flowers up to 8'' across. The leaves and stems die down to the ground with colder weather, but the roots can live in freezing temperatures through zone 5 with no protection. Fertilizing Hibiscus . Deadheading will improve the appearance of the plant. That means it won't survive outdoors in a winter that gets colder than that. In fact, they do well in USDA hardiness zones 4 and up. This will help protect the root ball through winter. These plants will die back to ground level during the winter months. Place your hibiscus tree in a sunny spot in your garden and watch it thrive again! Giant Hardy Hibiscus. Choose a container that is large enough to allow for 2 to 3 years of growth before shifting up to a larger size container. Hibiscus are notorious for dropping their flower buds in response to stress (such as being grown inside). Hardy, perennial or winter hardy hibiscus are descendants of Rose Mallow or Hibiscus moscheutos, Hibiscus mutabilis or Hibiscus coccineus. There are a few ways to fertilize Hibiscus. Huge, 8-12″ wide, dinner plate size flowers of vibrant rose-pink, scarlet, white, plum and multicolor bloom vigorously in late summer. While watering is essential to your year-round care for hibiscus, in the winter, you should only water the plant when the soil is dry to the touch. 0 Your hardy hibiscus will be happier outdoors this winter than indoors, even in a garage. The versatile perennials bloom with stunning flowers ranging in size from 2" to 9" (5 - 22 cm) across. Dormancy and Winter Care. ft. of bed area. To keep Hibiscus warm apply a layer of mulch to protect Hibiscus in the winter and early spring. The leaves of the tropical variety have a dark green color and glossy texture, while the hardy one sports heart-shaped leaves and have a lighter green color. It may take a string of warm days before the plant decides to emerge. Hibiscus needs little care once established. Cut back the hardy hibiscus vine to 1 foot when it reaches 2 feet tall. Perennial hibiscus plants are hardy, requiring very little extra attention to survive the winter. Work soil around the roots, firm well and water thoroughly. 3 In winter or rainy season, water the hibiscus only when the soil is dry. Hibiscus 'Vintage Wine' (Rose Mallow) is a densely upright, deciduous shrub with large, brilliant scarlet-red flowers, up to 7 in. These flower best in areas with long, hot summers. Plant number: 1.270.030. For container-grown plants, ensure the top inch or so of potting mix dries out fully before watering—saturated . Hummingbirds and pollinating bees are attracted to the colorful flowers . Lord Baltimore Perennial or Hardy Hibiscus . We prefer to leave the architectural stalks up over winter, both from a design perspective, but they also provide a perch for birds and a home for overwintering pollinators. Many years ago, I shared this post on easy potted hibiscus care.It is one of the most popular garden posts we've had to date! Hardy hibiscus will enter dormancy during the fall in zones 4a to 8b. Double White Confederate Rose Mallow, Hibiscus mutabilis 'Tri-Color' Few plants can produce the summer long show of huge showy flowers of the Hardy Hibiscus or Perennial Hibiscus. The soil in the pot warms much faster than the ground ever will. Hibiscus love the sun and need moist, well-drained soil. Water the hibiscus regularly during warm weather when the plant is in bloom. Get the plant ready to be overwintered outdoors by wrapping it with a heavy cloth or tarp. While watering is essential for year-round hibiscus care, in winter, you should only water the plant when the soil is dry. The stalks can be cut down to the ground in spring before new growth emerges. Assuming the plant winters in the pot undamaged, it is my opinion that having it in a pot will hasten emergence. A perennial, hardy hibiscus will have dull, medium-green, heart-shaped leaves; dinner plate-size white, pink, or red flowers; and huge, bomb-shaped buds. A small space humidifier will also raise humidity levels in your home. Hardy Hibiscus Care They do well as container-grown plants, too, allowing you the opportunity to bring the plant indoors for the winter season if you live in a cold climate. Leave 6 inches of stem intact to mark its location and protect this late to emerge plant from accidental digging. The covering should stand up to frost, offering the plant protection on any nights when temperatures dip below freezing. Hardy hibiscus colors include white, red, pink, and bi-color. The instructions that came with our hibiscus don't specify how often to water during the fall and winter. As the root system grows and matures it will send out new shoots much earlier in the season. If your hibiscus has dull medium green heart shaped leaves, dinner plate sized white, pink or red flowers with HUGE, bomb shaped buds (2-4″ in length! ), it is a perennial, hardy hibiscus. Many gardeners will assume that they are dead, but give them time, and the first new shoots will emerge eventually in May. The larger, more shrub-like hardy hibiscus species, H. syriacus (aka Rose of Sharon), has similar planting and care to the smaller species . Although the hibiscus grows tall, the need for staking is rare. Cutting the plant back after flowering, especially dead, damaged, and diseased branches and old wood growing in the center of the plant can aid air circulation and keep the plant looking tidy. Chinese hibiscus are ideal for use as seasonal container plants. Hardy Hibiscus is also known as hybrid or perennial Hibiscus. Huge, exotic flowers up to 8'' across. Hardy Hibiscus. Chopped leaves or pine needles are great choices. You will see some of yellow leaves on the hibiscus when you care for the hibiscus indoors during the winter. Dinner Plate Hibiscus Plants. Cold Weather Care This will cause a lot of yellow leaves on your hibiscus. Hardy hibiscus will benefit from mulching in very cold areas. You may have heard them called "dinner plate Hibiscus", a name coined for its huge 7-9 inch wide, circular blooms. Below are our perennial favorites. Source: fthmb. If you bring your hardy hibiscus indoors for the winter, you'll need to mist the leaves daily or place each pot on a pebble tray filled with water. Indoor tropical hibiscus benefit from regular watering from spring to early autumn during the growing season. Repot container-grown hibiscus into a larger pot every two to three years. Use at half the label recommended strength every 2-3 weeks when placed outside for the summer. These plants can survive in temperatures as low as 20 degrees below freezing point. Keeping these plants watered will result in larger flowers and lush foliage. Water and fertilize regularly to promote a healthy plant. If any branches froze during the winter, cut these to the ground. You will notice that the leaves will lose their color, flowers will drop, and new growth will stop for a brief period. They die to the ground each year. Hibiscus is a lovely flower with a bloom like a large paper blossom. You can now enjoy these gorgeous flowers in your northern home. Bold flowers, nice foliage and easy care makes it shine in a Kansas City summer. Chinese Hibiscus (Hibiscus rosa-sinensis): This tropical shrub that is often grown outdoors in the summer and as a houseplant in winter. USDA Zone: 4-9. Hardy Hibiscus can be planted in the garden, no matter what their climate. If so, consider adding hardy hibiscus to the planting. Beyond this zone, take care to protect the roots from damaging freezes. Foliage Type: Deep Burgundy lance shaped leaves. Cut the perennial hibiscus back in late winter or early spring. Keep in mind that perennial hibiscus is a slow starter, so don't worry if no growth is present in early spring. Now that you have it in a pot, enjoy it for the summer months and in the fall, sink the pot into the ground and mulch over it just as you did last winter. Flower Form: 8-9'' Cup shaped flowers. Perennial Hibiscus, commonly known as Rose Mallow. To simplify it hibiscus can be broken down into . Fleming's Flower Fields™ circa 2002 introduced the most compact (3 to 5 ft.) winter hardy (to -30 F.) Hibiscus to the world with the first purple and red leaves and the first Lavendar and Yellow flowers amongst many other signature characteristcs making them more exciting and more suitable in modern landscapes than the taller types of the past. Place your hibiscus plant in a sunny spot that gets at least 8 hours of direct sunlight every day. Easy to grow, needs little care. When new growth appears, you can trim and shape the plant, as desired. Hardy hibiscus is easy to grow in any sunny spot where it has space to spread out. If you live in a hot climate, hibiscus foliage will stay green and lush year-round. Indoors, fertilize less often, using ½-strength formulation, every month or so in spring and summer, less frequently in winter. This plant delivers on all points. This plant grow 3 to 6 feet tall and wide so give it plenty of room. It is best to plant Hibiscus in the garden before the heat of the summer arrives, and should be heavily mulched the first winter. It is best to plant Hibiscus in the garden before the heat of the summer arrives, and should be heavily mulched the first winter.