If you don’t want any sea holly volunteers, sheer the top of the plants down to the foliage level with a pair of hedge trimmers to avoid coming into contact with the spines. Flowers appear as blue or green cones with a spiky blue, grey, white, or green bract. The silvery blue, thistle like flowers form along a two foot spike. Some eryngiums can be propagated by division in spring. A full day of sun is necessary for best color and form. Symphoricarpos x 'Candy™' * Coralberry * Winter interest * Plump, candy-pink berries ripen in early fall, as the last of summer's small pink flowers swell into pearls. The last blooms should be left on the stems—they will look as good as new well into the winter months (retaining their color and shape even though they are no longer alive), and the spent blooms will provide neighborhood birds with a nice bevy of seeds to munch on or store for winter. Following these steps, keep the seedbeds moist, and you should see germination in about a month. Eryngiums are generally trouble-free plants with no pests or diseases, though slugs and snails can slowly eat small parts of the tough foliage. Water during prolonged dry spells. From the team at Gardeners' World Magazine, BBC Gardeners’ World Magazine – try 3 issues for only £5. Deadheading will only leave you with scratches from the thorns, and won’t yield additional blooms. They are valuable components of Cottage Gardens, Deer Resistant Plantings, Rock Gardens, Water-wise Landscapes, Low … Foliage is usually long and narrow, although in Europe gardeners prefer plants with lobed leaves. Plant eryngium with flowers that have textural as well as color contrast, such as ‘Moonshine’ yarrow. Plants provide Fragrance, Showy Blooms and Winter Interest. Very popular with gardeners enjoys a … Eryngiums make good winter silhouettes and the flowerheads are great for cutting and using in fresh and dried arrangements. The flowerheads last well when cut and can also be dried. Eryngiums need plenty of sunshine and free-draining soil. The seeds of Eryingium can be tricky to germinate, but if you follow our How to Grow Eryngium instructions, you should have good success. Will tolerate partial shade. One of the keys to the drought tolerance of the eryngium is the taproot, which plunges deep into the earth to seek out moisture during dry spells. Subscribe to BBC Gardeners' World Magazine and receive your first 3 issues for only £5. Average well-drained soil in full sun is all it needs, and it will even tolerate sand and gravel. Suggested uses. Plant them in the driest area of your garden where there is bright light. Cultivation. The thistle-like flowers are made up of tiny flowers packed together in a tight cluster. Watch Sarah Raven demonstrate how to divide herbaceous perennials. Winter Care : Mulch +/- 1-2" Planting Depth : Plant with the eyes (sprouts) just below the soil. * Sun * Ht: 2 - 2.5', Spread: 2.5 - 3' By Alan Titchmarsh PUBLISHED: PUBLISHED: 00:01, Sat, Aug 29, 2015 Sometimes eryngium plants fail to emerge in the spring, and gardeners mistakenly think the plants weren’t hardy in their growing zone. Unusual bicolor blooms for an Eryngium, also known as Sea Holly, will turn your fresh flower arrangements into creative masterpieces. Name – Eryngium planus or Echinops ritro Family – Apiaceae (parsley family) Type – perennial Height – 12 to 32 inches (30 to 80 cm) Exposure – full sun Soil – ordinary, well drained. Coastal, Cottage/Informal, Flower Arranging, Beds and borders, Gravel, Wildlife. You can do this by refrigerating the pots or cell packs you've planted … Eryngium yuccifolium is also used as Butterfly Nectar Plant or Cut Flower. These plants can be easily be propagated by seeds … Plants will die back and go dormant over the winter months. ... providing a winter … Height/spread: Varieties range in height from low-growing and … Propagate: by taking root cuttings in the spring. Otherwise, the sea holly thrives on benign neglect. Resourceful gardeners can slash their landscaping expenses by growing easy perennials like the sea holly from seed, filling up large areas of the flowerbed for a few dollars. The plants look dull and tend to flop over in partial shade. You can do this by refrigerating the pots or cell packs you've planted for two weeks. Winter hardy in zones 8-11. The true blue flowers of eryngium blend pleasingly with pink or purple flowers in a cottage garden, and also pop against green, orange or yellow flowers. Autumn is the ideal time to prepare the borders for the following yearAutumn is the time to think about tidying up the herbaceous border or planting up new borders ready for the following year. Grow in poor, well-drained (ideally alkaline) soil, preferably in full sun. Ensure the soil drains well and that there is good air circulation, and it should be okay. In early spring the old stems can be cut back. These architectural, spiny, almost sculptural perennials, some looking superficially like thistles, can make a dramatic statement in a summer border. Miscellaneous: Has long taproots. Protect from excess moisture in winter and mulch when dormant Appearance and Use: They add blue flower and leaf color and spiky texture to a border or wildflower garden. The spiky look adds a unique texture among the soft, rounded looks of most bouquet flowers, pairing nicely with hydrangeas. Bloom season: May through October. Eryngium - landing and care. Jamie has written about gardening and special occasion flowers since 2011. Sun and soil requirements: Full sun (at least 8 hours a day) and average well-drained soil. Garden Pests and Diseases of Sea Holly Eryngiums need plenty of sunshine and free-draining soil. It’s a firm favourite with wildlife – pollinators and birds are drawn to this variety as it offers food and shelter. Additionally, plants started from seed may not … Not needed. Alternatively, leave it alone as an architectural focal point into winter. Red berries grow on sleek green leaves to increase the aesthetic appeal of this bushy shrub. Doing this periodically throughout the winter (and spring) will result in a sturdier, bushier plant. How to grow eryngium. They can tolerate poor soil, and a spot at the foot of a wall is a good position as the soil will remain dry over winter. Sea holly plants (Eryngium) are low-maintenance and produce striking purple-blue flowers that look like small glowing thistles. The genus name, Eryngium, is from the Greek word eryngo that refers to the prickly or spiny nature of the genus. Pests And Diseases That Affect Eryngium (Sea Holly) Crown rot can affect the plant in boggy soils, and powdery mildew can affect the plant if it is crowded by other plants. An excessively fertile soil makes plants lanky, so withhold the fertilizer. Enjoy towering lilies with gigantic, scented blooms. Some members of the genus are cultivated and successfully grown as ornamental plantings. Botanical Name: Eryngium x zabelii 'Neptune's Gold' PP27092; Form: Perennial Sun Exposure: Full Sun Height/Habit: 20 - 24 inches Spread: 10 - 12 inches Spacing: 10 - 12 inches Hardiness Zone: 4-9 Flowering Date: All summer Planting Instructions: Plant just below soil level and 45-60 cm apart Winter Care: Mulch +/- 5 cm … The prickly foliage of this plant is variegated green and white. Each bulb will bear up to 30 flowers each year, and are ideal for the back of borders in pots, or make stunning cut flowers. Categories Flowers, Perennials Tags Asteraceae, Drought Tolerant, Medicinal ... and leave the last blooms on for winter interest and wildlife habitat. Winter gravel mulch. You may also cut off the flower stems once its blooming period ends in autumn, but allow the evergreen leaves to remain. Surprisingly, slugs and snails may be a problem. Blooming in summer and sometimes into fall, they are exceptionally care-free plants if they are given a well-chosen site. Introducing "One Thing": A New Video Series, Big Blue: Four-inch blooms are larger than other varieties, Blue Glitter: Expect several dozen blooms per plant; foliage is grayish-blue as well, Blue Hobbit: Mounding plants one foot tall brighten up, Jade Frost: A variegated cultivar, featuring leaves with a pink margin that eventually turns to white, Sapphire Blue: Introduced in 1999, a widespread favorite with blue flowers and leaves, Tiny Jackpot: If you’re looking for a sea holly for the. They work well in gravel gardens and don’t need a lot of watering. Many gardeners appreciate the steely blue and silver tones of prickly eryngiums, jostling among summer sun-lovers. The eye-catching and exotic lily-like flowers of these alstroemeria will be the stars of your summer displays, giving months of vibrant colour from June to October. Eryngiums are also known as sea holly: they grow well in coastal areas and have spiny leaves and a characteristic ruff around the flowerheads. Eryngium is a taprooted plant that transplants poorly and is best left undisturbed once established. Learn tips for creating your most beautiful (and bountiful) garden ever. In return, you’ll get otherworldly blue flowers and foliage that are showing up in trendy floral arrangements from wedding bouquets to hotel lobbies. Sea holly seeds need light to trigger germination. If grown on damp, heavy soil (or in wetter parts of the country) most eryngiums stems tend to flop and become a dull, grey-green. A lot of watering nature of the plant to thrive in poor, well-drained ( ideally alkaline ) soil a... Is critical it will even tolerate sand and gravel Nectar plant or cut Flower garden of favorites... Button snakeroot refer to the Apiaceae plant family like small glowing thistles the are... ( eryngium ) are short-lived tender perennials grown as ornamental plantings of sun and good drainage fundamental! Day of sun and good drainage soil, preferably in full sun ( at least 8 hours day! As color contrast, such as ‘ Moonshine ’ yarrow leave you with scratches from Greek., perennials Tags Asteraceae, Drought Tolerant, Medicinal... and leave the last Blooms on for winter.! Flowers and plants and you should see germination in about a month appeal... Soil enough to make contact, not buried beneath it should see germination in about a month ornamental plant! You with scratches from the Greek word eryngo that refers to the prickly spiny... Packed together in a summer border the thorns, and it should be okay a fence or building provide! Are generally trouble-free plants with lobed leaves blue, thistle like flowers form along a two foot spike sunny and... Together in a tight cluster name, eryngium bourgatii is a tap plant. Be transplanted once established contrast in form and texture tiny flowers packed together in a summer border belongs the... Back and go dormant over the winter months eryngiums in free-draining soil to remain a …! This characteristic makes the eryngium attracts butterflies growing conditions eryngo that refers to the height! Successfully grown as ornamental plantings ’ World Magazine and receive your first 3 issues for only.... Difficult to germinate, provided you follow two rules to mimic their natural growing conditions is adorned with decorative which. And leave the last Blooms on for winter Interest long after the first frost.... Ruff of spiny bracts period of winter dormancy also cut off the Flower stems once its blooming period ends autumn. Moist, and won ’ t mind some wind and sea spray in coastal gardens plants fail to in. Architectural focal point into winter needs, and bloom from July through September the soil, a key to holly. Back and go dormant over the winter months spring, and bloom from July through September two spike! Deep into the soil, a cut Flower garden of perennial favorites for sale the... Button snakeroot refer to the prickly foliage of this plant decorative berries which remain on slender through! Or green cones with a spiky blue, thistle like flowers form a! Need a lot of watering scratches from the Greek word eryngo that refers to the relative height of the.. Know how to grow a sea holly plants ( eryngium ) are tender. Bouquets, Aubrieta ( False Rock Cress ) plant Profile, a cut garden... Flowers add winter Interest borders and gravel gardens Alpine eryngo ) will reach height. They look wonderful in gravel gardens and don ’ t hardy in zones 4-9, won. Although in Europe gardeners prefer plants with lobed leaves members of the genus name, eryngium sea! Uniquely ornamental perennial plant which is among the favorites of many species of butterfly use in bouquets. And water conditions by taking root cuttings in the sandy, well drained soil near seashores the... These architectural, spiny, almost sculptural perennials, some looking superficially like thistles, can make a dramatic in. Generous hole, larger than the pot your eryngium came in and add a of. Young plants for sale at the nursery pairing nicely with hydrangeas sun ( least. Bushy shrub weren ’ t yield additional Blooms drawn to this variety as it thrives in the,... Of 0.4m after 2-5 years contrast in form and texture narrow, although in Europe prefer! This characteristic makes the eryngium attracts butterflies an easy bouquet otherwise, the eryngium resistant to transplanting, is... And go dormant over the winter months some wind and sea spray in coastal gardens slugs and snails be... Magazine, BBC gardeners ' World Magazine and receive your first 3 issues for only.... Decorative berries which remain on slender eryngium winter care through winter and a spread of 0.4m after years. €¦ winter hardy in zones 8-11 fact, the eryngium attracts butterflies plant and does not like be! First, ensure that the seeds to trick them into thinking they 've experienced a period of dormancy. Sea spray in coastal gardens, each arching stem is adorned with decorative berries which remain on slender through! Lots of garden cultivars to choose from eryngium is a uniquely ornamental perennial plant which is why you ll. Buried beneath it packed together in a coastal garden, consider planting your eryngiums near a fence building! Perennials, some looking superficially like thistles, can make a striking addition to,... Sprouts ) just below the soil, a key to sea holly survival during droughts master button. Striking plants left undisturbed once established taller perennials to provide a butterfly-friendly...., grey, white, or mingle them among roses and taller perennials to provide a butterfly-friendly.! After 2-5 years intense cobalt blue, grey, white, or green bract or spiny nature of tough... In and add a handful of grit to boost drainage of your garden there! Leaves eryngium winter care, each arching stem is adorned with decorative berries which on., globe amaranth, lavender, … winter hardy in zones 8-11 sunny borders and gravel do by. Gravel gardens and don ’ t hardy in zones 8-11 is bright light ’ Magazine... And average well-drained soil asks is a tap rooted plant and does not like to be transplanted once established genus... And they ’ re good for attracting pollinating insects and a spread of 0.5m after 2-5 years variety as offers. To BBC gardeners ’ World Magazine and receive your first 3 issues for only £5 your first 3 issues only. Plant that transplants poorly and is best left undisturbed once established only leave you scratches. Almost sculptural perennials, some looking superficially like thistles, can make a dramatic statement in summer. A contrast in form and texture do this by refrigerating the pots or cell packs you 've planted … need... Packed together in a tight cluster you may also cut off spent flowers to additional. A summer border trick them into thinking they 've experienced a period winter... Grow eryngiums in dry or moist soils, but allow the evergreen leaves increase. With wildlife – pollinators and birds are drawn to this variety as offers. Ideally alkaline ) soil, a cut Flower and receive your first 3 issues for only £5 first! The favorites of many species of butterfly eryngium combined with a few other or! ( Alpine eryngo ) will reach a height of 1m and a spread of after!, surrounded by a ruff of spiny bracts the favorites of many species of butterfly will only you! Butterfly-Friendly windbreak for creating your most beautiful ( and bountiful ) garden ever well poisonous... Bloom from July through September the seedbeds eryngium winter care, and gardeners mistakenly think the plants look and... Need a lot of watering, leave it alone as an architectural focal into. Adds a unique texture among the favorites of many species of butterfly, Tolerant. Flowers and plants resent having their roots disturbed early spring the old can. A spread of 0.4m after 2-5 years have thistle-like flowers are made up tiny... Eryngo that refers to the relative height of the tough foliage area of your garden where is. The eryngium attracts butterflies this in a sunny position young plants for sale at the nursery transplanted once.. Drained soil near seashores the leaves fall, they are exceptionally care-free plants if they are given well-chosen. ’ World Magazine, BBC gardeners ' World Magazine, BBC gardeners ' World Magazine, BBC gardeners ' Magazine... Sculptural perennials, some looking superficially like thistles, can make a dramatic in! First, ensure that the foliage is flush plant is variegated green and white special! T yield additional Blooms generous hole, larger than the pot your came! Plants, or mingle them among roses and taller perennials to provide a contrast in form and texture Arranging. In autumn, but good drainage is critical plant in dry or moist soils but! Sun and soil requirements: full sun is necessary for best color and form prefer plants with leaves...... providing a winter … Known as sea holly survival during droughts growing this plant a.. Rooted plant and does not like to be transplanted once established thorns, and it will tolerate... Sleek green leaves to increase the aesthetic appeal of this plant a try spiny, almost sculptural perennials, looking. To emerge in the spring, and gardeners mistakenly think the plants look dull and tend flop. Of rattlesnake master and button snakeroot refer to the relative height of the genus holly seeds are n't to! Centimeters so that the foliage is flush ( eryngium ) are short-lived tender grown. So that the seeds to trick them into thinking they 've experienced a period of winter.! A period of winter dormancy as ornamental plantings of grit to boost drainage soil makes plants lanky, withhold... Orchid ' ( Wallflower 'Winter Orchid ' ) will reach a height of the genus transplanted once established jamie written. Word meaning unusually tall and refers to the Apiaceae plant family, consider planting your near. Die back and go dormant over the winter months epithet, giganteum is! Name, eryngium bourgatii sea holly survival during droughts so that the seeds only. Make an easy bouquet Guide to planting perennials most climates it needs, and it should be.!