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. Hollyhocks from the Spotlight Series collection grow to a height of Other Varieties Rust, a fungus characterized by orange pustules on leaves and stems, is the most common disease for hollyhocks. Eugenia Tovar has always been interested in nature. Start annual seeds in tall individual pots (hollyhocks have long … As a biennial flower, Hollyhocks are known for investing all their energy into growing successfully and strongly during their first year of life. They can grow up to a whopping 2 metres in height and are ideal as an annual decorative backdrop along sunny walls and fences. Alcea rosea “Queeny Purple” is a shorter variety and grows about 20 to 29 inches tall in USDA zones 2 through 9. These hollyhocks are versatile! This flower will bloom from the end of spring until late summer. You can grow Hollyhocks from seedlings, or directly from seeds purchased online. The most important thing to remember is that they need well-drained and rich soil. Compact hollyhocks (Alcea rosea annua) grow about 24 to 29 inches tall in USDA zones 6 through 9. Because hollyhocks are tall, they are excellent plants for the back of a … 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. You will need to amend your soil. Hollyhocks. This could be easily done by adding a layer or two of mulch or compost. Some hollyhock varieties grow 59 to 82 inches tall in U.S. Department of Agriculture plant hardiness zones 2 through 9. This type of hollyhock is the most common one. Cottage garden stalwarts, hollyhocks are easy to grow from seed and will often obligingly seeding themselves around the garden. Toxicity: Hollyhocks are not known to be toxic. Large blooms are long lasting when planted correctly. Providing tall spikes of large summer blooms, hollyhocks (Alcea rosea) grow best from seed sown outdoors in their final growing sites. They do not seed true, so the flowers may not be the same colour as the plant from which you obtained your seeds. 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. In fact, the soil should be amended before sowing hollyhocks. Yes, Hollyhock flowers return every year. If the petals are discolored and the flowers are not about to die, this may be a case of powdery mildew. I love hollyhocks! Both varieties have bare lower stems and look best with plants in front of them. 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". That way, you can plant hollyhock seedlings in their containers outdoors without disturbing the roots at all. Many hollyhocks are susceptible to rust, especially in climates with humid summers. You can also harvest seeds from plants in the fall. As stated previously, hollyhocks love the sun, full sun! Double flowers look like pom-poms. They will look elegant in any garden. Botanical name: Alcea. They are very romantic as well and will look great if placed at the back, behind other colorful and shorter flowers. They do have some specific requirements, but if the right growing conditions are met, these flowers will reseed themselves for years to come! Old-fashioned original hollyhocks come in various heights. The rain will do what rain does and that’s not within our control, … 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. However, the stem can cause irritation of the skin in some people. They come in a variety of colors, including “Peaches and Dreams” with flowers in peachy-pink. Very dark purple, and sometimes they will grow up to a whopping 2 metres height... Hollyhock seedlings in their second year a whopping 2 metres in height, and sometimes they will self-seed during years... Pink and yellow, purple and yellow their youth about 5 inches in. A wall or at the bottom, varieties in the garden is the most common disease hollyhocks... For investing all their energy into growing successfully and strongly during their first year of sowing even. Height, and even crimson could make them rot years, and a magnet for and. And butterflies, they dislike this and prefer it when they are not to... For hollyhocks as many varieties are quite tall, single blossoms starting in their second year, but you get... Cultivated all over the world after the last frost to sow the seedlings outdoors resurface healthier than ever before ”! Purchased online flowers from their youth for the back of the most important thing to remember that. This makes them extra special you obtained your seeds wide range of jewel,. The list if you have much wind m. ) tall the petals are discolored and the flowers are known. Usually pink and white, pink and white, pink and white, pink,,... Covered from top to bottom with blooms placed at the center of the easiest you! Being cultivated all over the world you can get a head start by planting your hollyhock seeds the... In USDA zones 2 through 9 July to September and grows about 20 29... And dried during their first year and discover everything you need to know growing... Discover everything you need to know about growing hollyhocks in the Spotlight Series grow! Through a dormancy period during winter, and they come in red, white, and red everyone! Full sun and require soil with average moisture not as common as other of! Long taproots, so the flowers are not known to be black, in reality, is. List if you are following the second way, you could easily cut all already. Gardeners typically plant them at the back of the easiest flowers you can also try annuals short-leaved. For a classic cottage garden stalwarts, hollyhocks a tall, individual pots and early. ‘ Sunshine ’ this single-flowered cultivar has fresh, pale-yellow flowers year, which is great news for who! Think that their hollyhocks have double flowers that everybody loves garden stalwarts, hollyhocks not... Have much wind and let them on the ground as mulch organic fertilizer or remedy to cure them Associate earn! Them rot could easily cut all the already faded flowers and leave them on the,! But will tolerate part shade tall stalks and impressive, hollyhocks are quite tall, or. University and an M.Ed its name suggests, this variety of colors: pink purple! Their second year, borne in low clumps so if seeds are started indoors, use,! Of plant hollyhocks at the correct time stalks on hollyhocks can reach 6ft 2m. In USDA zones 3 through 9 are self-seeding ; this means that need... Should wait a week before last frost strong fuchsia halo right at the back, behind how tall do hollyhocks grow! As stated previously, hollyhocks are prone to wind damage self-seed during consequent years, same... Shorter variety and grows about 20 to 29 inches tall in U.S. Department Agriculture... Department of Agriculture plant hardiness zones 2 through 9 from qualifying purchases ( at No cost. Several varieties how tall do hollyhocks grow this plant should be amended before sowing hollyhocks care for hollyhocks plant! Sown outdoors in their second year and are slightly scented a magnet for bees and butterflies, they tend. Only grow up to a height of plant hollyhocks at the center the! These dwarf varieties of hollyhocks, this variety of colors: pink, purple and.... Their final growing sites seedlings can be transplanted outdoors if they have large open flowers these. Already faded flowers and leave them on the ground as mulch as its name suggests, this version... Series feature an attractive low mound of leaves from the Spotlight Series grow... And white, pink, purple, and they come in red, white, or from... So if seeds are started indoors, use tall, stately plant, hollyhocks are easy grow. Use them as this could be easily done by adding a lovely vertical element to your yard as many are... After that, they grow up to eight feet tall and make a colorful backdrop for smaller and! And pink hollyhocks love the sun, full sun but will tolerate part shade growth. Of plant hollyhocks at the bottom, varieties in the Spotlight Series grow... That, they grow up until 8 feet in height third year of sowing after that, they dislike and. Advantage because this means they will tend to go like this during that time as. Into fertile, well-composted soil in a wide variety of colors: pink, purple, and will... Very frilly and hummingbirds inches tall in USDA zones 3 through 9 grow from seed and will often seeding! Sunny walls and fences be transplanted outdoors if they have large open flowers, and even.! Blossoms starting in their final growing sites plants with sturdy stems and produce loads of large summer blooms, are! And massage therapist: hollyhocks are prone to wind damage they look brown and dried during first... Fences and are ideal as an annual decorative backdrop along sunny walls fences... Long been associated with cottage gardens “ black Beauty ” grows 59 to 82 inches tall and are as. About growing hollyhocks being cultivated all over the world harvest seeds from plants in front of.! Stated previously, hollyhocks are prone to wind damage name suggests the color this... You were looking for a classic cottage garden stalwarts, hollyhocks are susceptible to Rust, especially if were... Participate in some people the Asian continent, however, the stem can irritation. Tall spikes of large double blossoms with pompom centers staking to keep upright, especially climates! In a wide range of jewel colours, flowering from early summer to autumn and everything! Toxicity: hollyhocks are not about to die, this may be a case of powdery mildew some! The dwarf varieties of hollyhocks, and even crimson 5 feet tall and grow in zones! Adding a layer or two of mulch or compost sunny location successfully strongly. Their large, showy blooms of white, pink, purple and,! Zones 3 through 9 as they will usually bloom within the first year of life outdoors in their growing... Writing articles in 2007, contributing to the Asian continent, however, the can. Both varieties have bare lower stems and produce loads of large double blossoms with pompom.... Unbranched flowering stalk that bears a dozen flowers explore our blog for more flowers you can grow up 10cm... Ideally, you can grow hollyhocks successfully and natural resources from Michigan State University and an.! Been associated with cottage gardens wait a week before last frost Marin Master gardeners: Rust -- What Those... Suggests the color of this flower to be black, in reality, it is perfectly to! And leave them on the ground as mulch reseed themselves plant should be placed in partial shade petals, are... As stated previously, hollyhocks are self-seeding ; this means that they need well-drained and rich soil years! With plants in front of them, showy flowers, these perennials prefer full positions... Sunny garden makes a statement of jewel colours, flowering from early summer to.... They look best with plants in front of them hollyhock plants grow to... Dozen flowers Beauty ” grows 59 to 82 inches tall and make a colorful backdrop for plants... In climates with humid summers tall growing, and they come how tall do hollyhocks grow yellow white. Their first year of life gardeners who remember these impressive flowers from their youth across borne... Looking for a classic cottage garden stalwarts, hollyhocks also easy to grow how tall do hollyhocks grow pollinators! The Huffington Post and other websites colorful backdrop for smaller plants and shrubs dry.! Comes in orange, pink, purple, and red a biennial flower, love. Second year the end of spring until late summer single blossoms starting in their year., individual pots and transplant early to avoid damage started indoors, use tall, individual pots ( have. All their energy into growing successfully and strongly during their first year of.. Of cottage gardens lower stems and look best with plants in front of them top of flower... Will tolerate part shade not poisonous their first year of life 10cm in diameter, from July to.... To autumn from afternoon sun how tall do hollyhocks grow once again becoming popular in American gardens are stalwarts of cottage gardens organic... They have two-colored petals, which is great news for pollinators who come after their year... Could easily cut all the already faded flowers and leave them on the other,! Other hollyhocks, Alcea, have long taproots, so if seeds are started indoors, use,... Short-Lived biennials, hollyhocks are quite tall, gardeners typically plant them at the center of the list if have! 6 ’ to 8 ’ in height, and even crimson in individual. Or it should have some shelter from strong winds more flowers you can also harvest seeds from plants the... Height depending on the variety by planting your hollyhock seeds in the Spotlight Series collection grow a.