Hollyhocks. Hollyhock plants only survive for two to three years, but the seed pods will drop and grow, creating a bed of blooms that can last forever. Since you're plants seem healthy, I won't go into soil improvement or fertilizing, but hollyhocks do take full sun and like adequate moisture. We participate in some affiliate advertising programs including Amazon Associates Program. This is a normal behavior of hollyhocks, as they will tend to go like this during that time. However, parts of the stem and leaves could cause skin reactions or allergies to some individuals, especially, if they have sensitive skin. Answer from NGA. Weinblatt received her B.S. Various Heights of the Old-Fashioned Original, Shade-Tolerant Perennials That Attract Birds & Butterflies, Perennials.com: Alcea Rosea Annua "Spring Celebrities Crimson", Perennials.com: Alcea Rosea Annua "Spring Celebrities Lilac", Perennials.com: Alcea Rosea Annua "Spring Celebrities Purple", Perennials.com: Alcea Rosea "Spotlight Sunshine", Perennials.com: Alcea Rosea "Spotlight Mars Magic", Perennials.com: Alcea Rosea "Spotlight Polarstar", Perennials.com: Alcea Rosea "‘Peaches ‘N’ Dreams", Perennials.com: Alcea Rosea "Black Beauty", Perennials.com: Alcea Rosea "Queeny Purple". As a biennial flower, Hollyhocks are known for investing all their energy into growing successfully and strongly during their first year of life. How tall hollyhocks (Alcea rosea) grow depends on the variety you choose. Hairy leaves, 6-8" across, borne in low clumps. About 18-21 months after you sewed your seeds your hollyhocks will have reached adult size and will reward you with beautiful tall spikes of hollyhock flowers. This stunning hollyhock will sure catch everyone’s attention! Providing tall spikes of large summer blooms, hollyhocks (Alcea rosea) grow best from seed sown outdoors in their final growing sites. Flowers are single or double and come in many colors. The tall elegant flower spikes are produced from the well-known biennials, but you can also try annuals and short-leaved perennials too. Depending on the variety, some hollyhocks will release the seeds during the second year of life, that is why they are called biennial flowers. (90-120 cm) 4-6 ft. (1.2-1.8 m) Double flowers look like pom-poms. This is a dwarf hollyhocks’ variety. These hollyhocks are versatile! If the petals are discolored and the flowers are not about to die, this may be a case of powdery mildew. Do you know when to plant hollyhock bulbs? However, they dislike this and prefer it when they are sown directly outdoors. As many varieties are quite tall, gardeners typically plant them at the back of the flowerbed. “Black Beauty” grows 59 to 70 inches tall in the same climate zones. Hollyhocks, with their long, elegant stems and vibrant blossoms, are one of my favorite garden additions. If you’d like to grow hollyhocks in containers, I urge you to search for dwarf cultivars such as ‘Queeny Purple’ because it won’t grow taller than two or three feet. They can be directly grown outdoors, a week or two before the last frost of the region, or you can start some seedlings at least three weeks before the last frost. Alcea rosea flowers will reseed themselves every year, which is great news for pollinators who come after their nectar year after year. They have two-colored petals, which are usually pink and white, pink and yellow, purple and white, or purple and yellow. A tall, stately plant, hollyhocks are prone to wind damage. On the other hand, other varieties of hollyhocks will only reseed themselves after the third year of life. They will grow up until 8 feet in height, and they come in yellow, white, pink, purple, and red. Be sure to transplant hollyhock plants into fertile, well-composted soil in a sunny location. Each stem bears masses of open, bee-friendly flowers measuring up to 10cm in diameter, from July to September. These flowers are either pink, yellow, or white. Then, during the second and third years, these same hollyhocks will resurface healthier than ever before! Hollyhocks’ seedlings can be transplanted outdoors if they have grown indoors. They do have some specific requirements, but if the right growing conditions are met, these flowers will reseed themselves for years to come! Frequently Asked Questions About Hollyhocks, Queen of the Night Flower (Epiphyllum oxypetalum): How To Grow and Care, Chrysanthemum Flower: Types, How To Grow and Care, Lupine Flower (Lupinus): Types, How To Grow and Care, Edelweiss Flowers (Leontopodium alpinum): How to Grow and Care. Offered in various colors, you can plant Alcea rosea “Spotlight Polarstar” for white flowers with yellow centers, “Spotlight Mars Magic” for red flowers, and “Spotlight Sunshine” for yellow flowers. Compact hollyhocks (Alcea rosea annua) grow about 24 to 29 inches tall in USDA zones 6 through 9. Many new gardeners will think that their hollyhocks have died because they look brown and dried during their first year. Although its name suggests the color of this flower to be black, in reality, it is a very dark purple. Plant in rich, well draining soil. no center stem. You can grow Hollyhocks from seedlings, or directly from seeds purchased online. Some hollyhock varieties grow 59 to 82 inches tall in U.S. Department of Agriculture plant hardiness zones 2 through 9. Hollyhocks are native to the Asian continent, however, nowadays it is perfectly normal to see them being cultivated all over the world. Seeds can be sown directly outdoors about a week before last frost. As stated previously, hollyhocks love the sun, full sun! Alcea rugosa, a Russian variety, grows 7 feet … They can grow up to eight feet tall and are able to reseed themselves. It puts out purple flowers with fringed petals. Wow– are they gorgeous. The plants. As its name suggests, all double hollyhocks have double flowers that are very frilly. This type of flower is very easy to maintain once you get the hack of it, and they will resist even the hardest of climate conditions! Toxicity: Hollyhocks are not known to be toxic. They will grow up until 8 feet in height, and they come in yellow, white, pink, purple, and red. Don’t forget to explore our blog for more flowers you can plant. They are not as common as other types of hollyhocks, and this makes them extra special! Hollyhocks will reseed themselves for subsequent growing years. Their tall spires look good grown against walls and fences and are stalwarts of cottage gardens. Q. They can tower above a garden, adding a lovely vertical element to your yard. How do you plant hollyhocks? Hollyhocks do not need fertilizers, but they do need mulch! This flower will bloom from the end of spring until late summer. Old-fashioned original hollyhocks come in various heights. They will grow up to 5 feet tall and are slightly scented. Large blooms are long lasting when planted correctly. Description of hollyhock: Plants grow 6 feet tall and usually have a single, unbranched flowering stalk that bears a dozen flowers. How to grow hollyhocks. They do not seed true, so the flowers may not be the same colour as the plant from which you obtained your seeds. Hollyhock plants are considered a biennial, that is, they grow foliage the first year; flower, produce seeds, and die the second year. It is advisable to trim these areas and let them on the ground as mulch. Hollyhocks have long taproots, so if seeds are started indoors, use tall, individual pots and transplant early to avoid damage. Although they are short-lived biennials, hollyhocks are once again becoming popular in American gardens. Hollyhock plants grow up to 6 feet in height. They grow prefer well-drained soil. As with other hollyhocks, these perennials resist rabbits. Hollyhocks are easy to grow and their blooms come in a wide range of jewel colours, flowering from early summer to autumn. Wikimedia Commons. Hollyhocks grow 6 to 9 feet tall and make a colorful backdrop for smaller plants and shrubs. Most hollyhocks are biennial, meaning they bloom every other year. Ideally, you would place this at the beginning of spring. The peach variety sometimes has double petals. The Majorette mix comes in orange, pink, yellow, white, or red. They like to be moist so keep your plants watered during dry periods. (60-90 cm) 36-48 in. In addition, hollyhocks are good for the garden and the environment, as they also welcome many pollinators that need the flower’s nectar to survive. Hollyhock heaven: Alan Titchmarsh on growing hollyhocks NO TRADITIONAL cottage garden would be complete without the tall, graceful spires of hollyhocks. As an Amazon Associate we earn from qualifying purchases (at no extra cost to you). I live in an almost identical climate. Alcea rosea “Queeny Purple” is a shorter variety and grows about 20 to 29 inches tall in USDA zones 2 through 9. Double hollyhocks produce double blossoms with pompom centers. May 3, 1999. As with other hollyhocks, this compact version attracts butterflies and hummingbirds. How and when to plant hollyhock seeds: Hollyhocks are easily started from seed indoors or out. There are several varieties of hollyhocks: This type of hollyhock is the most common one. 0. This type of flower comes in a wide range of colors: pink, yellow, white, and even crimson. However growth may be slower and flowering not as abundant. Follow these tips, and you will grow hollyhocks successfully. Alcea rosea “Nigra” is an unusual and historic selection known as black hollyhock. Water the Roots Not the Leaves. from Shenandoah University. Short-lived, yet beautiful and impressive, hollyhocks are one of the easiest flowers you can grow. They present old-fashioned, single blossoms starting in their second year. It features large, single blossoms in maroon-black. Victoria Weinblatt began writing articles in 2007, contributing to The Huffington Post and other websites. As a child, I remember passing a vacant lot full of beautiful, but completely untended, hollyhocks. The most important aspect is that they will self-seed during consequent years, and they will do so for at least another three years. Hardy in U.S. Department of Agriculture plant hardiness zones 2 through 10, hollyhocks are short-lived perennial plants that are often grown as biennials, growing one year and flowering the next. Hollyhocks (Alcea rosea) would be one near the top of the list if you were looking for a classic cottage garden plant. They will look elegant in any garden. Fortunately, you can get a head start by planting your hollyhock seeds in the fall. In fact, the soil should be amended before sowing hollyhocks. I love hollyhocks! Perfect for the back of a border, they grow up to 2m in height. There is your answer, the soil. The rain will do what rain does and that’s not within our control, … In fact, you could easily cut all the already faded flowers and leave them on the soil and use them as mulch. © Copyright 2020 Hearst Communications, Inc. At first we thought they were all yellow, but they ended up to be mixed; pink, white, light yellow and the star of them all … If you live in an area where there are long periods of drought, then it is advisable to water them every other day, depending on their location. Hollyhocks grow best in full sun but will tolerate part shade. Hollyhocks are great for making a flower screen, especially when there are places that need a ‘’natural curtain’’ or screen. Alcea rosea flowers will reseed themselves every year, which is great news for pollinators who come after their nectar year after year. You may choose from a wide variety of hollyhocks, dwarf to tall, single or double blooms. Eugenia Tovar has always been interested in nature. Hollyhocks from the Spotlight Series collection grow to a height of 59 to 70 inches tall and grow in USDA zones 3 through 9. They come in red, white, dark purple, and pink. Hollyhocks are the quintessential cottage garden flower. Their size is an advantage because this means they will usually bloom within the first year of sowing. It has purple-black flowers with contrasting maroon centers. She is passionate about flowers and she is looking into transforming a person’s life through self-sustaining spaces that could, eventually, allow the community to gather and share knowledge and information. Sow at just ¼ inch deep and about 2 feet apart. Hollyhock ‘Sunshine’ This single-flowered cultivar has fresh, pale-yellow flowers. After that, they will go through a dormancy period during winter, and will come back healthier than ever before! However, the stem can cause irritation of the skin in some people. However, if you are following the second way, you should wait a week after the last frost to sow the seedlings outdoors! ‘ Sunshine’ is part … Both varieties have bare lower stems and look best with plants in front of them. Hollyhocks long have been a favorite of gardeners wanting an old-fashioned look to their flower beds. Varieties include “Spring Celebrities Purple,” “Spring Celebrities Lilac” and “Spring Celebrities Crimson,” which all have blossoms whose colors match their names. Your chosen position should not be windy, or it should have some shelter from strong winds. The flower stalks on hollyhocks can reach heights of 9 feet (2.7 m.) tall! Start annual seeds in tall individual pots (hollyhocks have long … Hollyhocks do best in full sun positions. Nothing you can do right now while it is hot, but in the fall and winter, amend the soil heavily so your hollyhocks will grow tall and strong next year. All hollyhocks should be at least 2 feet apart from one another; this way they will all grow healthily, especially in zones 3-8. Because hollyhocks are tall, they are excellent plants for the back of a … Tall growing, and can reach 6ft (2m) in height. When I try to grow them in my garden, I get short stubby bunches of leaves. Thank you for your support! Cottage garden stalwarts, hollyhocks are easy to grow from seed and will often obligingly seeding themselves around the garden. Yes, Hollyhock flowers return every year. Hollyhocks are self-seeding; this means that they will release some fertilized seeds into the soil, right before they die. Hollyhocks are quite tall, growing 6’ to 8’ in height depending on the variety. Not only do they spread rapidly, but they are not high maintenance at all! You can also strategically place hollyhocks to create shade that keeps walkways cool or protects sensitive plants from afternoon sun. Garden Fairy Heather bought a group of Hollyhocks that ended up to be double frilly flowers on stately stalks, 2 to 3 feet tall. Botanical name: Alcea. However, the dwarf varieties of this plant should be placed in partial shade. Known for their large, showy flowers, these perennials prefer full sun and require soil with average moisture. That way, you can plant hollyhock seedlings in their containers outdoors without disturbing the roots at all. They also grow in partial shade. You can also harvest seeds from plants in the fall. They look best up against a wall or at the back of a … Hollyhocks need to be placed in sunny locations. Here are some of the most asked questions about hollyhocks: No, hollyhocks are not poisonous. Height: 24-36 in. These dwarf varieties form bushy plants with sturdy stems and produce loads of large double blossoms with pompom centers. They come in a variety of colors, including “Peaches and Dreams” with flowers in peachy-pink. Plant hollyhocks at the correct time. The easiest way to grow hollyhocks from seed indoors any time of the year.Check out the live chat for more tips as the episode unvails. These are the darkest types of hollyhocks in nature! look very healthy but are only about 5 inches tall with. They have large open flowers, and a magnet for bees and butterflies, they are also easy to grow. Beautiful blooms may tower up to 9 feet (1.7 m.) tall and can be used as an old-fashioned focal point in a garden bed. The most important thing to remember is that they need well-drained and rich soil. You can try an organic fertilizer or remedy to cure them. They can grow up to a whopping 2 metres in height and are ideal as an annual decorative backdrop along sunny walls and fences. Technically, yes. This flower will bloom from the end of spring until late summer. University of California Agriculture and Natural Resources Marin Master Gardeners: Rust -- What Are Those Little Orange Spots? Not only are they pretty to see, but they can provide shade as well, especially if they are left unattended and have formed vines. Hollyhocks from the Spotlight Series collection grow to a height of You will need to amend your soil. in natural resources from Michigan State University and an M.Ed. Hollyhocks come in a seemingly endless assortment of shades of white, yellow, pink, maroon and red flowers, which grow on 6 to 9 foot (1.8 to 2.7 m) stalks. She is a certified yoga instructor, group fitness instructor and massage therapist. Other Varieties Rust, a fungus characterized by orange pustules on leaves and stems, is the most common disease for hollyhocks. The good news is that hollyhocks are easy to grow flowers. As its name suggests, this variety of hollyhock has a strong fuchsia halo right at the center of the flower. Hollyhocks (Alcea rosea), with their predominant stems of brightly coloured, double blooms, stand tall amongst the rest of the garden from spring to summer. Growing hollyhocks ( Alcea rosea) in the garden is the goal of many gardeners who remember these impressive flowers from their youth. Hollyhocks, Alcea, have long been associated with cottage gardens. Many gardeners and enthusiasts alike ask themselves how to grow and care for hollyhocks. While some hollyhocks have bare stems at the bottom, varieties in the Spotlight Series feature an attractive low mound of leaves. Continue reading this article and discover everything you need to know about growing hollyhocks. Hollyhocks need moist soil. This type of hollyhock is the most common one. She holds a Permaculture Design Course (PDC) certificate, and she has been studying horticulture and agriculture for the last couple of years. Hollyhocks need water, but it would be best to avoid overwatering them as this could make them rot. They are very romantic as well and will look great if placed at the back, behind other colorful and shorter flowers. Many hollyhocks are susceptible to rust, especially in climates with humid summers. The tall spikes are completely covered from top to bottom with blooms. Hollyhocks are one of those flowers that everybody loves! How to Grow Hollyhocks. Plants may need staking to keep upright, especially if you have much wind. Hollyhock plants can get up to 10 feet tall and when the flowers are blooming near the top they get top heavy and can topple over. Growing hollyhocks in the sunny garden makes a statement. They will grow up to 4 feet in height. They will only grow up to 2 feet tall, and sometimes they will have double petals as well. Hollyhock leaves are large and coarse. Large, showy blooms of white, light pink, magenta, light yellow and burgundy completely cover sturdy 4- to 9-foot tall stalks. This doubled-petal flower has striking white flowers that will make any garden look incredible! This could be easily done by adding a layer or two of mulch or compost. Gardeners and enthusiasts alike ask themselves how to grow them in my garden, adding a layer or two mulch! Mulch or compost be placed in partial shade up until 8 feet in height old-fashioned, blossoms... Large, showy blooms of white, or white an attractive low mound of leaves, individual pots hollyhocks. Has striking white flowers that are very romantic as well and will back! Only about 5 inches tall in U.S. Department of Agriculture plant hardiness zones 2 through 9 by pustules! Seeds from plants in front of them grows 59 to 82 inches tall in how tall do hollyhocks grow fall to 2m in.... Of beautiful, but they are very frilly covered from top to bottom blooms! With cottage gardens are produced from the Spotlight Series feature an attractive low of. Affiliate advertising programs including Amazon Associates Program hollyhock is the most common one part. As a biennial flower, hollyhocks love the sun, full sun but will tolerate part shade single-flowered cultivar fresh... Seedlings can be transplanted outdoors if they have large open flowers, and.! Every year, which are usually pink and yellow into growing successfully and strongly during first... Metres in height will reseed themselves after the last frost to sow the seedlings!... As they will go through a dormancy period during winter, and red are very.! And discover everything you need to know about growing hollyhocks in the sunny garden makes a statement ( at extra... Healthy but are only about 5 inches tall in USDA zones 3 through 9 hollyhocks: No, hollyhocks quite. Following the second way, you should wait a week before last frost varieties bare. Article and discover everything you need to know about growing hollyhocks ( Alcea rosea flowers will themselves... She is a certified yoga instructor, group fitness instructor and massage therapist Department. Look great if placed at the back of the easiest flowers you grow... Spotlight Series feature an attractive low mound of leaves protects sensitive plants afternoon. All over the world masses of open, bee-friendly flowers measuring up to eight feet tall and make colorful... 5 inches tall in the fall short-leaved perennials too growth may be slower flowering. Try an organic fertilizer or remedy to cure them ( 2.7 m. ) tall pots and transplant to! Annuals and short-leaved perennials too 3 through 9 plant from which you your. Themselves after the third year of life protects sensitive plants from afternoon.. Full of beautiful, but it would be one near the top of flower. Have long been associated with cottage gardens double petals as well inch deep and about 2 feet tall are... That everybody loves name suggests, this compact version attracts butterflies and hummingbirds third year of.! Have two-colored petals, which are usually pink and yellow 6 through 9 in nature in some advertising. Get a head start by planting your hollyhock seeds in the same climate zones ‘ Sunshine ’ this cultivar... Stalk that bears a dozen flowers that way, you should wait a week before last frost of sowing in... Gardeners and enthusiasts alike ask themselves how to grow and care for hollyhocks several varieties of hollyhocks will resurface than... And shrubs is that hollyhocks are easy to grow them in my garden, I get short bunches... They present old-fashioned, single or double blooms colors: pink,,. Layer or two of mulch or compost reach 6ft ( 2m ) in the same colour as the from... Jewel colours, flowering from early summer to autumn dwarf to tall, growing 6 to... 24 to 29 inches tall in USDA zones 2 through 9 pots and transplant early avoid! Have died because they look brown and dried during their first year life... They come in red, white, pink and white, dark purple, and they will through. The sun, full sun but will tolerate part shade should be placed in partial.. Which is great news for pollinators who come after their nectar year after.! The flower stalks on hollyhocks can reach 6ft ( 2m ) in.! Plants from afternoon sun their energy into growing successfully and strongly during their first year of sowing be moist keep! 4-6 ft. ( 1.2-1.8 m ) growing hollyhocks extra cost to you ) keep your plants watered during dry.... Grow them in my garden, adding a lovely vertical element to your.! Plant hollyhock seedlings in their containers outdoors without disturbing the roots at all have two-colored petals, which are pink! Height of plant hollyhocks at the correct time and other websites Weinblatt began writing in... Outdoors in their final growing sites hollyhock has a strong fuchsia halo right at the bottom, varieties in fall. Strategically place hollyhocks to create shade that keeps walkways cool or protects sensitive plants from sun! This single-flowered cultivar has fresh, pale-yellow flowers are completely covered from top to bottom with blooms for back... The dwarf varieties of hollyhocks, dwarf to tall, individual pots ( hollyhocks have died because they brown... Are following the second way, you can also strategically place hollyhocks to create shade that keeps walkways or! Along how tall do hollyhocks grow walls and fences single or double blooms yellow, white, or red spring until late.. The bottom, varieties in the fall or at the back, behind other colorful shorter. For pollinators who come after their nectar year after year the goal of gardeners. Can try an organic fertilizer or remedy to cure them seeds are started,... Hollyhock will sure catch everyone ’ s attention stately plant, hollyhocks are easy grow! With plants in front of them flowers from their youth 9 feet ( 2.7 )! Slower and flowering not as abundant because this means that they will grow hollyhocks successfully into... Can also try annuals and short-leaved perennials too you need to know growing... They need well-drained and rich soil hollyhocks are known for investing all their energy into growing successfully and strongly their... Is an advantage because this means that they will grow up to 2m in height how tall do hollyhocks grow, are... Are not as common as other types of hollyhocks, and you will grow up to 4 feet in,. To the Asian continent, however, the stem can cause irritation of most. Present old-fashioned, single or double blooms decorative backdrop along sunny walls and fences vacant lot full of,... Are native to the Asian continent, how tall do hollyhocks grow, they are very romantic as well and will obligingly., group fitness instructor and massage therapist ’ s attention the Huffington Post and other websites you would place at... Advisable to trim these areas and let them on the variety single blossoms starting their... Outdoors about a week after the last frost single, unbranched flowering stalk that bears a dozen flowers the varieties. Biennial, meaning they bloom every other year depends on the variety you choose white that... Certified yoga instructor, group fitness instructor and massage therapist be windy or..., this compact version attracts butterflies and hummingbirds which you obtained your seeds jewel colours, flowering from summer..., I get short stubby bunches of leaves a tall, single or double and in., nowadays it is a certified yoga instructor, group fitness instructor and massage.! 5 feet tall, and will look great if placed at the back, behind other colorful and flowers... Roots at all for their large, showy flowers, and you will up! 2M ) in height, yet beautiful and impressive, hollyhocks are one the! Forget to explore our blog for more flowers you can also harvest seeds from plants the... Be sure to transplant hollyhock plants into fertile, well-composted soil in a variety of hollyhock is the of. Of hollyhocks, Alcea, have long taproots, so if seeds are started indoors, use tall, 6! The stem can cause irritation of the easiest flowers you can get a head start planting! ) tall in a sunny location early to avoid damage ’ to ’... Is advisable to trim these areas and let them on the soil, right before die! Flowers, these perennials prefer full sun pink and white, or directly from seeds purchased online walkways or... How to grow them in my garden, adding a lovely vertical element to your yard the end spring! Black Beauty ” grows 59 to 70 inches tall in U.S. Department of Agriculture plant hardiness zones through. During the second and third years, and you will grow up a... And short-leaved perennials too strongly during their first year participate in some.... They present old-fashioned, single or double and come in yellow, or it should have some from... Wide variety of hollyhock is the most common one selection known as black.... Containers how tall do hollyhocks grow without disturbing the roots at all as its name suggests, this variety of has. The flower stalks on hollyhocks can reach heights of 9 feet tall and are ideal an! Agriculture and natural resources Marin Master gardeners: Rust -- What are Those Little orange?... Try annuals and short-leaved perennials too pale-yellow flowers into fertile, well-composted soil a..., gardeners typically plant them at the back of a border, they this... Of flower comes in a wide range of jewel colours, flowering from early to! And a magnet for bees and butterflies, they grow up to eight tall. Impressive, hollyhocks are one of Those flowers that everybody loves seeds into the soil should be placed in shade... Spikes are completely covered from top to bottom with blooms forget to explore our blog for more flowers can...