Flowers with large blossoms
10 Big Flowers You Can Plant in the Backyard | Bob Vila
Showy Flowers
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Big flowers are fun! They add color, structure, and a “WOW!” factor to your landscape like nothing else. If you’re looking for plants with colossal color, check out these 10 flowering plants boasting the biggest blooms.
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Titan Sunflower (Helianthus annuus ‘Titan’)
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This sun-loving annual lives up to its name in every way. Titan grows thick, sturdy stalks up to 12 feet tall, and produces truly titanic flower heads measuring up to 24 inches across. At the end of the growing season it produces huge, edible sunflower seeds. Plant drought-tolerant sunflowers in full sun. Annual.
Related: 10 Flowers That Attract Bees to Your Garden
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‘Giant White’ Moonflower (Ipomea alba ‘Giant White’)
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Moonflower is the night-blooming sibling of morning glory. It’s the perfect big bloomer for nocturnal gardeners. The immense 6-inch snowy white flowers of Giant White open at dusk and close at dawn from mid to late summer. Grow this vine on a trellis or arbor near a patio or balcony where you can enjoy the celestial glow and sweet scent in the moonlight. Annual.
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Kelvin Floodlight Dahlia (Dahlia ‘Kelvin Floodlight’)
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“Dinner plate” dahlias grow massive blooms, large enough to cover a plate. The 10-inch buttery yellow flowers of Kelvin Floodlight make you want to go back for seconds. Plant them in a sunny location, in rich, well-drained soil. This dahlia makes a great focal point in a perennial border. The plant grows 3 to 4 feet tall and blooms from mid-summer until frost. Perennial, hardy in USDA zones 3 to 10.
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Round ‘n Purple Allium (Allium ‘Round ‘n Purple’)
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These awesome ornamental onions produce gigantic globes of 10-inch silvery purple flowers from mid to late spring. Round and Purple alliums grow to 36 inches tall. They tolerate poor soil in full sunlight and grow back year after year. These plants can naturalize in open areas, or work well in a perennial border. Perennial, hardy in USDA zones 4 to 9.
Related: 10 Foolproof Flowers Anyone Can Grow
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Supernova Angel’s Trumpet (Brugmansia x ‘Supernova’)
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This is one of the best jumbo-flowering perennials for sunny container gardens. It grows fast and makes huge trumpet-shaped flowers up to 18 inches long and 10 inches wide. Supernova is a tropical shrub with stems that die back like other perennials in the cooler extent of its range. In the warmer parts of its growing range, Supernova is a deciduous shrub (drops its leaves in winter). Perennial, hardy in USDA zones 8 to 11.
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Big Brother Lily (Lilium x ‘Big Brother’)
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Fragrant and absolutely breathtaking, Big Brother giant lily produces humongous yellow-throated white flowers up to 15 inches across. They make awesome cut flowers for a big, bold statement. This tall hybrid lily grows up to 6 feet high in sunny, well-draining garden beds. Perennial, hardy in USDA zones 3 to 8.
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Big Daddy Hydrangea (Hydrangea macrophylla ‘Big Daddy’)
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Most flowering plants need full sun to look their best, but not hydrangeas. Big Daddy grows tons of ginormous flowers, up to 14 inches in diameter, in filtered sunlight or afternoon shade. Plant these hydrangeas en masse, or as an informal border plant. Bloom color varies based on soil pH. Acidic soil makes blue flowers, while alkaline soil produces pink ones. Deciduous shrub, hardy in USDA zones 6 to 9.
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‘Moy Grande’ Hibiscus (Hibiscus x ‘Moy Grande’)
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If you’re looking for a pop of color, your search is over. Moy Grande produces stunning deep pink to red flowers up to 12 inches across. This hardy hibiscus grows best in average to moist soil and full sun. Plant it as a seasonal focal point in your perennial border. Perennial, hardy in USDA zones 7 to 10.
Related: Early Bloomers: 7 Spring Flowers Bringing Color NOW to a Yard Near You!
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Atlas Magnolia (Magnolia x ‘Atlas’)
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Magnolias are renowned for their heavenly scent and large blooms. At more than 13 inches, this one has some of the biggest flowers of all. Atlas is a deciduous magnolia that bears its gigantic light pink flowers on bare branches in the early spring, followed by large, dark green leaves. Plant it in an open area where it has room to grow 25 feet tall and wide. Hardy in USDA zones 7 to 10.
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Fireworks Clematis (Clematis x ‘Fireworks’)
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At up to 8 inches across, Fireworks clematis has one of the largest blooms of its kind. This stunning perennial vine grows up to 12 feet tall and blooms heavily from spring to early summer. It makes a beautiful screen when trained on a trellis. Or, use it to adorn an arbor over a garden pathway. Perennial, hardy in USDA zones 4 to 9.
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15 Flowering Plants With Large Blooms
Grow these beautiful big flowers in your own yard for stunning seasonal colors
By
Jamie McIntosh
Jamie McIntosh
Jamie McIntosh has written about gardening and special occasion flowers for the Spruce since 2011. She has more than 20 years of experience caring for flowers and plants. She was a feature writer for Organic Gardening at Suite101, where she won awards for her writing.
Learn more about The Spruce's Editorial Process
Updated on 11/29/22
Reviewed by
Debra LaGattuta
Reviewed by Debra LaGattuta
Debra LaGattuta is a gardening expert with three decades of experience in perennial and flowering plants, container gardening, and raised bed vegetable gardening. She is a Master Gardener and lead gardener in a Plant-A-Row, which is a program that offers thousands of pounds of organically-grown vegetables to local food banks. Debra is a member of The Spruce Gardening and Plant Care Review Board.
Learn more about The Spruce's Review Board
The Spruce / Evgeniya Vlasova
When choosing plants that flower for your garden, you have lots of options: from small, dainty flowers to those with large blooms that make a dramatic statement, as well as quickly fill up flower vases with cut flowers. Here are 15 plants with large flowers to consider for your garden, depending on the climate in which you are gardening.
Tip
Although there are exceptions, plants with large, dramatic flowers typically need more water and fertilizer than more modest plants. Watch your plants carefully, and if the blooms are not up to your expectations, the plants might require more regular feeding or water.
Landscape Design for Beginners
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The Spruce / Evgeniya Vlasova
Peonies with bomb-type flowers make a statement in the spring garden, but tree peonies can sport blooms up to ten inches across on woody stems that do not die back to the ground in winter. Tree peonies like the 'Mrs. Fry' cultivar are slow to mature, but a 5-foot tree peony with 50 blooms is spectacular and worth waiting for. Deeply divided foliage adds to the character of these plants.
- USDA Hardiness Zones: 4 to 8
- Color Varieties: White, red, pink, purple, yellow
- Sun Exposure: Full sun to part shade
- Soil Needs: Fertile loam, well-drained
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The Spruce / Evgeniya Vlasova
These fiery red poppies go by the moniker 'Goliath'. Oriental poppies send long tap roots into the soil, helping them establish a long life in your spring garden. Blooms in excess of 7 inches in diameter are not unheard of. To pamper your poppies, full sun and excellent drainage are the most important requirements.
- USDA Hardiness Zones: 3 to 7
- Color Varieties: Orange, red, pink, purple, white, peach, maroon, salmon
- Sun Exposure: Full sun
- Soil Needs: Fertile, well-drained soil with average moisture
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The Spruce / Evgeniya Vlasova
In the world of hydrangea hybridizing, the big blooms just keep getting better. This genus of plants has several species commonly used in landscaping, all of which are famous for having large flowers. For example, Hydrangea arborescens 'Annabelle' has 12-inch flower heads that are a stunning staple in many shade gardens. However, 'Incrediball' has increased in popularity because it also blooms on new wood but its stems will not flop under the weight of rain-soaked blooms. In addition to the cultivars of H. aborescens, varieties of H. macrophylla, H. serrata, H. paniculata, and H. quercifolia are all known for their impressive blooms.
A sheltered site with some shade will help your hydrangeas shine throughout the growing season.
- USDA Hardiness Zones: 3 to 9 (depends on species)
- Color Varieties: Blue, pink, white, red, purple
- Sun Exposure: Full sun to part shade
- Soil Needs: Rich, porous, rich soil; pH can affect bloom color of some species
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04 of 15
The Spruce / Evgeniya Vlasova
The classification term dinner-plate dahlia is used to describe any dahlia variety with large, impressive flowers measuring at least eight inches across. Most commercially available dinner-plate dahlias are hybrid cultivars. If you have successfully grown dahlias in the past, your quest to grow dinner-plate cultivars like 'Belle of Barmera' or 'Lady Darlene' will be easy. Like many large flowers, dahlias like more of everything: more sun, more water, more feeding. Remove side buds to enable plants to direct their energy into producing a few giant flowers. Stake plants for support, and expect the blooms to mature in late summer.
- USDA Hardiness Zones: 8 to 11; grown as an annual in colder climates
- Color Varieties: White, pink, red, yellow, cream, orange, purple, maroon; solid and bi-colors
- Sun Exposure: Full sun (some afternoon shade helps in very warm climates)
- Soil Needs: Moist but not soggy, rich, well-draining soil
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The plants known as water lilies include about 70 species within at least five different genera. They are found across the world, but those most often sold commercially are tropical species. Most species have fairly large flowers, but those known as giants have genuinely enormous blooms and leaves. For example, the night-blooming flowers of Victoria amazonica strive to keep up with its incredible ten-foot leaves, which can support a small person's weight. Its basketball-sized flowers only live for a few days to carry out their reproductive destiny.
Although you cannot cultivate this plant in a typical water garden, you can admire healthy examples of the giant water lily in botanical gardens like Longwood Gardens in Pennsylvania.
- USDA Hardiness Zones: 10 to 11 (V. amazonica)
- Color Varieties: White to pink/purple
- Sun Exposure: Full sun
- Soil Needs: Submerged rich loam
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The Spruce / Evgeniya Vlasova
Hybrids of trumpet and Oriental lilies, orienpet lilies are increasing in popularity as new cultivars continually hit the market. Their large fragrant blooms appear in late summer on sturdy five-foot stems. Try 'Big Brother', a pale yellow variety that lives up to its name with 15 inch blooms. Like most lilies, orienpet lilies are best planted in late fall or early spring. In neutral or alkaline soils, watering with an acid-enhanced fertilizer will help them thrive.
- USDA Hardiness Zones: 5 to 9
- Color Varieties: White, yellow, pink, apricot, burgundy, red, and bi-colors
- Sun Exposure: Full sun to part shade
- Soil Needs: Medium-moisture, well-drained soil; thrives in slightly acidic soil
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07 of 15
The Spruce / Evgeniya Vlasova
Red amaryllis blooms are popular to grow for the winter holidays, but this plant comes in a number of colors and forms. Larger bulbs produce larger plants and flowers, so splurge on premium bulbs from trusted vendors. 'Double Record' with red and white streaking will produce eight-inch flowers for indoor enjoyment. The amaryllis bulbs sold commercially are cultivars derived from hybrids of various Hippeastrum species, developed over many years. Amaryllis is best grown in a relatively cool room (60 to 65 degrees Fahrenheit) with bright, indirect lighting.
- USDA Hardiness Zones: 8 to 10; normally planted as an annual, even in warm climates because a winter chilling period is required
- Color Varieties: Red, pink, white, salmon; solid, striped, and bi-colored
- Sun Exposure: Full sun to part shade
- Soil Needs: Humusy, well-drained potting soil; rich, well-drained soil when planted in the garden
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08 of 15
The Spruce / Evgeniya Vlasova
Sunflowers might very well set the standard for giant blooms in the flower garden, but not all sunflowers are created equal when it comes to size. 'Mammoth' is an heirloom variety that reliably produces 12-inch flower heads packed with oil-rich seeds. 'Sunzilla' is a newer hybrid bred to grow a sturdy 16-foot stalk capable of supporting the giant blooms. Although sunflowers are drought-tolerant, constant moisture and rich soil will yield the largest flowers.
- USDA Hardiness Zones: these are true annuals in all climates
- Color Varieties: Yellow, cream, gold, white, maroon, brown; bi-color and solid
- Sun Exposure: Full sun
- Soil Needs: Average, moist, well-drained
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The Spruce / Evgeniya Vlasova
The common potted hibiscus plants are tropical species that won't tolerate even a whiff of frost, but exotic flower lovers can rejoice—the hardy mallow plant Hibiscus moscheutos will survive zone 4 or 5 winters while still boasting flower diameters in excess of ten inches. Some varieties feature bronze or purple foliage to boost the ornamental value. The gorgeous pink-flowered 'Summer Storm' has a dark magenta eye. In cold regions, use mulch or straw to protect the roots, especially when the plants are young.
- USDA Hardiness Zones: 4 or 5 through 9
- Color Varieties: White, red, pink
- Sun Exposure: Full sun
- Soil Needs: Well-drained loam
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Only night owls will be able to appreciate the nocturnal blooms of the moonflower vine, which swirl open at dusk to reveal six-inch white flowers. Blooms stay open all night. If you nick or soak the seeds, germination can occur in as little as a week. Combine the fast-growing vines with morning glories, and you will please hummingbirds and hummingbird moths alike.
- USDA Hardiness Zones: 10 to 12; usually grown as an annual
- Color Varieties: White
- Sun Exposure: Full sun
- Soil Needs: Tolerates any soil type
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The Spruce / Evgeniya Vlasova
If roses have not been your go-to choice for large blooms in the past, it is time to get acquainted with English roses—a class of roses developed from heirloom varieties by breeder David Austin with the goal of large, full blooms with a heavy fragrance. With petal counts of 140 or more per bloom, these large-cupped flowers are vase-fillers with old-world fragrance to spare. The lemon-hued 'Charles Darwin' and the 200-petal count 'Spirit of Freedom' are repeat bloomers, yielding six-inch flowers all season. Roses can be prone to fungal diseases in moist and humid conditions, so give them plenty of air circulation and avoid wetting the foliage when irrigating them.
- USDA Hardiness Zones: 4 to 11 (varies, depending on variety)
- Color Varieties: White, yellow, red, pink, orange; solid and bi-colors
- Sun Exposure: Full sun
- Soil Needs: Well-drained loam
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King Protea (Protea cynaroides)
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Protea plants lend an exotic flair to any tropical flower arrangement, and king protea (Protea cynaroides) plants produce the largest flower heads of them all. Also known as sugar bush, these South African natives can be grown outdoors as evergreen shrubs in USDA hardiness zones 9 and warmer. The artichoke-like flowers can grow up to one foot across. Make sure to water the plants deeply on a weekly basis for the first two years; after this, they are relatively low-maintenance plants.
- USDA Hardiness Zones: 9 to 12
- Color Varieties: Red, pink, creamy white
- Sun Exposure: Full sun
- Soil Needs: Average to rocky very well-drained soil; prefers acidic soil
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The otherworldly coral shapes of cockscomb Celosia argentea var. cristata make it a garden focal point, but add to that the velvety texture and footlong size, and you have a staple for the cut flower garden. Cockscomb plants are easy to grow from seed (they self-seed readily), and they tolerate humidity as well as dry soil.
- USDA Hardiness Zones: 2 to 11; normally grown as an annual
- Color Varieties: Orange, red, purple, yellow, pink
- Sun Exposure: Full sun
- Soil Needs: Rich, moist, well-drained soil; tolerates dry soil
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The Spruce / Evgeniya Vlasova
A single flower panicle of Buddleia davidii can grow up to 18 inches in length, with each panicle comprised of hundreds of densely packed florets. The nectar-rich flowers will attract an endless parade of butterflies over its bloom cycle, which usually stretches into four months. Beware of the possibility of rampant spreading; this plant is known to be invasive in some regions if not deadheaded.
- USDA Hardiness Zones: 5 to 9
- Color Varieties: Purple and pink are common; yellow, and red cultivars are also available
- Sun Exposure: Full sun
- Soil Needs: Average, well-drained soil
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The Spruce / Evgeniya Vlasova
For southern gardeners, there is nothing quite like the charm of a camellia bush in the late winter garden. For the biggest flowers, plant a cultivar of the Camellia japonica species. Disbudding will help you achieve six-inch flowers on varieties like the double pale pink Camellia japonica 'Debutante' which is hardy in USDA hardiness zones 8 through 10.
- USDA Hardiness Zones: 7 to 9 (Camellia sinensis)
- Color Varieties: White, pink, red, yellow, lavender
- Sun Exposure: Filtered sun, part shade
- Soil Needs: Consistent moisture, acidic, well-drained soil
Top 10 High Candle Flowers in Garden Design
Every modern garden has flowering perennials. Without them, it is impossible to imagine a flower garden or a mixborder. When planning your flower beds, selecting plants for leaf beauty, flowering time, and flower color, take into account a whole group of gorgeous perennials that will add vertical accents to your garden. Their high inflorescences-candles soar up with expressive accents, give dynamics to garden compositions and attract the eye. Even when they fade and pass the baton to other plants, the faded candle-like inflorescences of many perennials remain decorative in the dry, although they fade into the background.
In garden planning, candle flowers make it possible to effectively fill vertical space where maximum decorative effect is important in gardens with limited space. Perennials with candle flowers are indispensable in large spaces. To make the flower garden look good from a fairly long distance, plant perennials with tall inflorescences. They will help create good vertical proportions for the flower bed and balance the perspective.
Candle perennials are real garden soloists. With the right selection of plants, they will lead their blooming batch from spring, summer, autumn, and dry inflorescences will continue to decorate your garden in winter. We will help you to choose magnificent blooming "candles" for both a shady area and for the sun, for a cozy romantic corner and a bright lush front garden.
Candle-blooming plants are always in the spotlight. Liatris, foxglove, eremurus, lupine, knifofiya, mallow, delphinium, yucca - this group of perennial plants has several common characteristics. They have small compact beautiful bushes, basal rosettes of leaves. But the inflorescences are amazing. Peduncles up to one and a half meters high are crowned with tall inflorescences. Candle flowers rise above flower beds, give brightness to garden compositions, professional design look, and become noticeable compositional accents.
1. Eremurus is a magnificent perennial that can produce some of the tallest flowers. Eremurus is a showy plant for open sunny places. From spring to mid-summer, the eremurus forms a rosette of basal narrow leaves, and in July it seems to shoot upward with a tall, rigid peduncle up to 150 cm. The inflorescence of adult plants is huge up to 50-80 cm, but light and delicate. Consists of small flowers similar to bells. Species popular in culture, narrow-leaved and giant eremurus, have long flowering up to 40 days. Better soil - light loam without stagnant water.
2. Liatris - not as tall as eremurus, but it can surprise you with beautiful flowering and a wonderful aroma of candle inflorescences. Even dry petals retain a pleasant smell. Liatris species Liatris spicata can reach 60-70 cm and it feels good even in pots on balconies. But in the garden, with proper care, it can give a peduncle 120 cm high. Liatris has the longest spike-shaped inflorescences compared to the peduncle - up to 35-55 cm. After planting, the leaves form a rosette, and in June and July they decorate the garden with bright inflorescences of different colors . Plants for sunny places with drained soil.
3. Veronica is a graceful and unpretentious plant, relatively low, but completely charming. The height of the lush bushes of Veronica longifolia is up to 60 cm, the tops of the shoots are crowned with graceful narrow inflorescences up to 25-30 cm. The colors of the varieties are blue, dark blue, and purple. Veronica grows even on very poor soils, in bright places. In landscape design, Veronica is best planted in groups.
4. Astilbe is also not a very tall plant, but its racemose inflorescences will decorate the semi-shady corners of the garden. Our catalog presents varieties of astilba in a variety of colors. High astilbes of the Arends hybrid group - will decorate the garden not only with tall lush inflorescences up to 90 cm tall, and openwork bushes with decorative foliage. The best varieties will help you out in partial shade areas with moist, well-drained soil. If you properly care for astilba, you can enjoy its flowering all summer long.
5. Knifofia - This perennial plant from the African continent has perfectly adapted in our gardens and winters without problems in open ground. In June-July, from a rosette of narrow linear silvery leaves of this perennial, a smooth, strong peduncle up to 120 cm long appears, with an amazingly beautiful yellow-red inflorescence. Kniphofia is a plant for bright places without waterlogging.
6. Lupine is one of the most unpretentious and spectacular perennials with candle-inflorescences. Lupinus has expressive palmate leaves on elongated petioles, on which the morning dew looks like pearls. During the flowering period in June-July, lupine flower stalks rise to a height of up to 120 cm. The color of the flowers ranges from soft pastel soft pink and blue tones to spectacular burgundy-white bicolors. In garden design, a wide palette of colors allows you to create harmonious compositions. For planting, well-lit places with good garden soils are suitable. Read more about planting and caring for lupine seedlings in our blog article.
7. Digitalis or Digitalis is a very showy plant. The rosette of leaves is low. During the flowering period, it seems that Digitalis is one continuous tall inflorescence. The height of the peduncle can reach 150 cm with good care. Foxglove seedlings bloom already in the year of planting, and candle inflorescences attract butterflies to the garden. Digitalis needs a lot of light, it tolerates drought well, but needs fertile soil.
8. Delphinium or spur is one of the most beloved perennials. Modern varieties and hybrids are two-meter favorites of flower growers. Candle inflorescences reach a length of 80 cm and consist of many fairly large up to 5 cm simple or double flowers. And if you take good care of Delphinium, you can achieve flowering not only in the season in June-July, but also again closer to autumn. The color of delphinium varieties is rich in delicate tones and different colors: from white and light blue to soft pink, purple and rich purple. And for lovers of bright colors - there are spectacular bicolors. Plants for soft penumbra and moderately moist fertile soils.
9. Mallow or stockrose is a perennial without which no fashionable flower garden can do. Alcea rosea combines magnificent inflorescences up to two meters high and large double magnificent flowers up to 10 cm. The palette of colors is the widest, for every taste. Mallows grow well on cultivated soils, moderately moist. To prevent tall and heavy inflorescences from lodging, plant plants in a group and provide them with a garter.
10. Yucca - completes the top 10. This is an exotic and very showy perennial. Its paniculate inflorescences consist of large bell-shaped flowers. With an unusual and even tropical look, growing yucca is quite simple. It will surprise you not only with huge inflorescences up to 120 cm, but also with evergreen leaves that peek out from under the snow in winter. We offer species that winter well. Flowering occurs in mid-summer and lasts until autumn.
For each plant with inflorescences, select areas of the garden that are suitable for growing conditions. Cut off faded flowers promptly to encourage further flowering. As we can see the list of colors of "candles", let you choose what you like and create incredible visual effects in the garden. Create and grow colorful candles in your flower beds.
Top 10 | The largest flowers in the world
The word "flowers" usually represents something elegant, colorful and fragrant. However, in nature, not all flowering plants are diminutive, there are also large specimens, and some are so large that it is hard to even imagine.
10 Peonies
They are found as perennial herbaceous plants or shrubs of small and medium size. Large, heavy flowers often need support. Blooms in late spring - early summer.
9 Hibiscus
Some wild shrubs and trees of this tropical plant have trunk diameters about the size of a human leg. Hibiscus are known for their large flowers in a variety of colors, such as red, yellow or orange.
8 Clematis
Although clematis is a fairly common flowering plant, not everyone knows that some of its species are impressive in size, for example, perennial climbing vines with large flowers of various colors.
7 Hydrangeas
This flowering plant is widely distributed in Asian countries - Japan, China, Indonesia and Korea. Despite the large number of diverse species, most hydrangeas are shrubs 1–3 m high with large inflorescences.
6 Sunflower
Unlike other large flowering plants mentioned above, the sunflower is not a rare species - it is often found in a wide variety of natural areas. The apical inflorescences of this annual plant are quite large, and the stem can reach 3.5 m in height.
5 Puya Raimondi
Usually found in Bolivia and Peru. This species, also known as the Queen of the Andes, was first discovered in 1830 by the French naturalist Alcide d'Orbigny. The flower stalk of Puyi Raimondi can grow up to 10 m in height!
4 Posidonia oceanica
Marine flowering herb often found in the Mediterranean Sea. It is also known under another name - the herb of Neptune. Posidonia has long leaves, similar to ribbons 7 to 10 mm wide, and its fruits resemble unripe olives in appearance.
3 Umbrella corypha
Known as the talipot fan palm, this plant is native to India and Sri Lanka. It is considered the largest palm tree in nature - the stem of the plant can reach a height of 25 m. Corypha umbellata blooms only once at the age of 30 to 80 years.
2 Arnold's Rafflesia
Another large flower with an unpleasant odor, Arnold's Rafflesia grows only in tropical rainforests. The plant is similar to Titan Arum and is also often referred to as "corpse lily" because of its putrid odor.