Delphinium is a perennial flowering plant in the buttercup family Ranunculaceae. They are mostly known for their showy flowers, which can be blue, white or pink. Delphiniums grow from an underground corm and have long stems with lanceolate leaves arranged alternately on either side of the stem. The name "delphinium" comes from the Latin word leporinus, which means "of a hare." The common name delphinium also refers to other plants in genera of Lilaeopsis and Erodium that resemble true delphiniums, but belong to different botanical families.
Delphinium trolliifolium is a flowering perennial plant, and is a species in the genus delphinium. It was first described by Shigemune Nomura in 1978. It can be found growing in Japan at elevations between 50-1700 meters above sea level. The typical lifespan is 5-7 years, but if cared for properly may live up to 20 years.
Delphinium trolliifolium has a height between 0.5 and a length between 1.0 and 2 meters when fully grown. The leaves are pinnate with many leaflets of each side arranged like a feather: hence the latin name 'trolliifolium'. The flowers are in typical blue delphinium form, having a white base with the petals being lighter than the sepals.
Delphinium grandiflorum is a perennial plant that comes in many different colors. It is native to the Mediterranean and central Asia, but has been naturalized around the world. Delphiniums are popular garden plants because they come in many flower colours, have an interesting shape and wonderful fragrance.
A common misconception about delphiniums is that they are all poisonous. Although there are some species of delphinium that contain toxic alkaloids, most species are harmless in all parts of the plant. Delphinium hollandicum is native to Japan and is an example of a non-toxic type.
Delphinium barbatum, an erect herbaceous perennials plant that reaches heights between 90 and 120 cm tall. The flowers bloom anytime from July to September and are in the shade of blue-purple on upright stem with a few darker stripes. It is found mainly in China, but also can be found in parts of Japan.
The Delphinium Consolida is a species of flowering plant in the buttercup family Ranunculaceae. The flowers bloom anytime from May through September and are in shades of deep blue to light lilac on an erect stem with two leaves,which may be divided or toothed.
Delphinium consolida is native to Europe and Asia and has naturalized in North America, Australia and New Zealand. It grows well in conditions of fertile soils with full sun. For this plant, moderate fertilization is required because it does not grow well on nutrient-poor soil .
In the White Mountains in Arizona Delphinium tricorne lives at elevations of up to 7,500 ft on moist rocky cliffs and steep slopes. The flowers are 6–10 cm long, with three swept-back sepals and a bell-shaped corolla 2.5–4 cm long.
It blooms from June to October. The flowers are white or pale pink.
The plant is endemic to the White Mountains in Arizona, from 7,500–10,000 feet (2,286–3048 m) altitude. In this area it can be found on moist cliffs and steep slopes mostly among Juniper trees species. This alpine forb grows only in clumps and colonies, and is sometimes partnered with mosses.
Delphiniums have been grown for centuries in Europe, where they were popular among landowners who liked to create wild gardens around their country estates. They have now become very popular in perennial gardens in all regions of the United States, because they are deer resistant.
Delphinium variegatum is a perennial plant that usually grows up to 60 cm tall. Its flowers bloom from late summer until early winter and are shades of pink with red centers. Delphinium variegatums grow natively on open slopes in high mountain ranges of central Europe, including the Alps.
Delphinium variegatum is a native to Europe and Asia and also grows wild in the mountains.
Delphinium bicolor is a perennial plant that is native to the Himalayas.
Delphinium bicolor grows as an erect herbaceous plant to 70 cm tall, with dark green leaves up to 12 cm long by 5–10 mm broad. The flowers are borne in spikes up to 10 cm long and 4–5 cm wide, each flower about 5 cm across, with a pale purple to blue-violet corolla.
It is hardy down to about −15°C (5 °F).
In 2008 the New York Times reported that botanists at Kew Gardens in London had discovered that Delphinium bicolor was in fact made up of two distinct species.
The two species, D. bicolor and D. flavum , were previously thought to be one species (D. bicolor) with variations in the extent of blue coloration in the flower. The plants had been first classified at a time when it was believed that Delphiniums would always have a spur in their corolla.
Delphinium gracilentum is a perennial plant that is growing up to 80 cm high.
The flowers are in shades of blue and pink. The flowers emerge from mid summer through autumn with each flower about 5–6 cm across, with a pale purple to deep blue corolla, depending on the variety. They grow wild in the high mountains of central and western Caucasia, the Himalayas (northern and western China, Bhutan, Sikkim), Tibet, Nepal and in parts of North-East India (Arunachal Pradesh).
The plant is hardy to about −10°C.
This is a perennial plant that blooms from mid-summer through autumn. The flowers are in shades of violet to blue. It grows wild on open areas at high elevations in the Alps, Jura Mountains and Tatras.
Delphinium nudicaule is a hardy plant that grows wild in the mountains of Europe.
This is a perennial flowering plant, native to the mountainous regions of central and southern Europe. It blooms from mid-summer through autumn (mainly August - September) and its flowers are in shades of violet-blue. This plant is popular among gardeners for its dense spikes of flowers that also attract butterflies and bees. The plant can be grown in many garden soils, but prefers well-drained, loamy soil with lots of organic matter as well as full sun to partial shade.
Delphinium rutilans is found in Japan, China and South Korea. Delphinium rutilans is a perennial plant that grows up to 45 cm high. The flowers have purple sepals and blue petals. The flower has 4-6 petals. They bloom from July until September with each flower about 5–7 cm across, with an orange to pale yellow corolla.
Delphinium rutilans is a dwarf variety of larkspur native to Europe.
This is a hybrid that has been bred from the species Delphinium elatum and D. grandiflorum .
Delphinium Apollo is a very popular variety of larkspur for use in the garden as well as in floral arrangements. The flowers are large, up to 8 inches/20 cm across and have dark blue sepals and violet-blue petals. The flowers are widely cultivated across Europe and North America.
With finely cut, deep-green leaves and violet-blue petals, this flower is truly stunning. It grows up to two feet high and is, therefore, considered a dwarf plant. It has an unusually long blooming period, with blooms showing up from June to September if you deadhead. It does best in soil that stays moist but well-drained, and it looks fantastic in vases, containers, and as border plants.
Although it has the same yellow flowers that are typical of delphinium, this plant is unique because its petals have a blue hue. The blooms grow up to two feet across and do well in full sun or partial shade. These plants are great for borders, containers, cut-flower arrangements, and the like.
This variety produces flowers that are about eighteen inches across and grow up to two feet high. It is one of the most popular varieties in Europe, but is still something of a rarity here in the US. These plants do best in light shade and moist soil, so they're great options for naturalized areas (or for growing in a rain garden).
Centurion Rose Shades
The Centurion Rose Shades's flowers are around eight inches in diameter. They have dark-blue petals that give off a crimson hue when backlit by the sun or under artificial lighting. These plants produce memorable cut-flower arrangements and will look great wherever you choose to grow them.
Guardian White's flowers are about six inches across. They have a dark-blue hue with creamy white margins and petals that blend to shades of cream, pink, and purple as the plant matures. The blooms do well in full sun or partial shade. These plants are relatively short and grow up to one foot high. They look awesome in rock gardens, containers, and anywhere you choose to place them.
Marble Delight is a hybrid that was bred from the species D. grandiflorum and D. elatum . Its flowers are up to eight inches across and have dark-blue petals with white margins. These plants do well in full sun or partial shade, although they'll grow taller when placed in direct sunlight.
Centurion Gentian Blue Shades
The Centurion Gentian Blue Shades's flowers are about eight inches in diameter. They have dark-blue petals with an electric blue hue that will make a fantastic addition to any garden or vase. The plants do best in full sun or partial shade and do not mind being planted in heavy soils, although they will look better if placed in soil that drains well.
Striking because of its dark colors, the Faust has petals that are deep violet-blue and deep purple on the outside of each petal, and a very subtle center that is the same colors as the petals themselves, making it truly striking and eye-catching. Blooming from June to August, this type of delphinium gets up to six feet high and, once you see it, you’ll understand why it has won so many international flower awards.
Magic Fountain Lilac Pink
Growing no more than three feet in height, this flower is sturdy and has lilac-pink petals with white contrasting eyes that make it truly unique. More tolerant of heat than many other flowers, this one does not require staking, and it prefers full sun or partial shade to thrive. With a neat, compact habit and dark green, divided foliage, this is one flower that will definitely catch people’s attention regardless of where you plant it.
What type of soil and light conditions do delphiniums need?
Delphiniums prefer well-drained, moist soil that is in partial shade to full sun.
How do you care for your delphiniums to ensure their best appearance possible?
Deadheading the flowers helps keep them looking good. It also helps prevent disease and pests from forming on the plant.
Additionally, if your delphiniums appear to be getting too leggy, you can cut them back to about six inches in height and then mulch them.
If the temp gets below 25F, you should also protect it by covering the plant so that all parts are covered. You may want to use a commercially available frost blanket to protect your plant.
Why did my delphinium bloom last year, but it is not blooming this year?
When growing these plants, you need to understand that the first year is spent getting the plant established. Therefore, the blooms are not common during this year.
They usually bloom in the second year onwards if they are healthy. To ensure that your delphiniums have a chance to become established and survive, you may want to think about planting them in pots or cell trays before moving them into the ground.
Delphiniums are very beautiful plants that have many uses around the home, for example as an outdoor plant they make a wonderful addition to any garden. They are also used in many gardens as part of a design in conjunction with other plants such as roses and hydrangeas.