{"id":7158,"date":"2023-04-18T02:41:59","date_gmt":"2023-04-18T06:41:59","guid":{"rendered":"https:\/\/ifoxany.com\/?p=7158"},"modified":"2023-04-18T03:04:35","modified_gmt":"2023-04-18T07:04:35","slug":"how-to-plant-and-grow-delphiniums","status":"publish","type":"post","link":"https:\/\/ifoxany.com\/index.php\/2023\/04\/18\/how-to-plant-and-grow-delphiniums\/","title":{"rendered":"How to Plant and Grow Delphiniums"},"content":{"rendered":"\t\t
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This elegant perennial produces spires of blue blooms.<\/p>

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Most commonly grown for its beautiful, tall spires of blue blooms, delphiniums have long been planted in perennial gardens. These elegant plants add a strong vertical element. Because some varieties can grow up to 7 feet tall, plant these at the back of a garden border. If blue isn’t your color, you can choose delphiniums in a few other colors, too!<\/p>

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Delphiniums are sought after and planted for their\u00a0blue flowers<\/a>. These beautiful blues come in a variety of shades and forms. Many feature a white center, which adds a bright contrast to the deep, rich blue. Most delphiniums are in the blue and purple range, but they can also be found in pinks and reds. There are some stunning coral-colored varieties and rare yellow ones. These plants have attractive foliage in a pleasing green, with palm-shaped leaves like a fern.<\/p>

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Delphinium plants and seeds are toxic.1<\/span>\u00a0Plant them in a location away from children and pets.<\/p>

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Delphinium Overview<\/h3>
GENUS NAME<\/td>Delphinium<\/td><\/tr>
COMMON NAME<\/td>Delphinium<\/td><\/tr>
PLANT TYPE<\/td>Perennial<\/td><\/tr>
LIGHT<\/td>Part Sun, Sun<\/td><\/tr>
HEIGHT<\/td>1 to 3 feet<\/td><\/tr>
WIDTH<\/td>1 to 3 feet<\/td><\/tr>
FLOWER COLOR<\/td>Blue, Pink, Purple, Red, White, Yellow<\/td><\/tr>
FOLIAGE COLOR<\/td>Blue\/Green<\/td><\/tr>
SEASON FEATURES<\/td>Summer Bloom<\/td><\/tr>
SPECIAL FEATURES<\/td>Cut Flowers, Good for Containers<\/td><\/tr>
ZONES<\/td>3, 4, 5, 6, 7<\/td><\/tr>
PROPAGATION<\/td>Seed<\/td><\/tr>
PROBLEM SOLVERS<\/td>Deer Resistant<\/td><\/tr><\/tbody><\/table><\/div>
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Where to Plant Delphiniums<\/span><\/h2>

Delphiniums prefer cool summers and moist soil, so they don’t tend to do well in hot, dry weather. Plant delphiniums in well-draining soil in an area that receives\u00a06 to 8 hours of sun daily. A location that provides some shelter from strong winds protects the tall flower stalks.<\/p>

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How and When to Plant Delphiniums<\/span><\/h2>

Spring and early autumn are the best times to plant delphiniums. They enjoy rich soil, so add compost to the planting holes. Position each plant so the top of the root ball is level with the soil surface. Space the plants 2-3 feet apart, depending on variety, and water them. Don’t let them dry out completely.<\/p>

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Delphinium Care Tips<\/span><\/h2>

Delphiniums are well-loved, but they can be fairly short-lived and picky when it comes to garden conditions.<\/p>

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Light<\/span><\/h3>

Delphiniums should be planted in full sun for the best blooms and sturdiest stems.<\/p>

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Soil and Water<\/span><\/h3>

Plant delphiniums in well-drained soil with plenty of organic matter. While it’s important to keep the plants consistently moist (they don’t handle drought well), be sure that the\u00a0soil has proper drainage. Standing water can lead to crown rot, which causes the whole base of the plant to rot and will eventually lead to death.<\/p>

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Temperature and Humidity<\/span><\/h3>

One of the most important things to keep in mind is that delphiniums don’t like hot summers; they perform best in mild, humid weather. When it does get hot, the plants might die back to the ground. If you’re lucky, they may come back as it cools back down. In anything\u00a0warmer than Zone 7, these plants are typically treated as annuals.<\/p>

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Fertilizer<\/span><\/h3>

Fertilize delphiniums in the spring\u00a0when the plants begin to grow and again while they are flowering using a granular 10-10-10 fertilizer.<\/p>

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Pruning<\/span><\/h3>

Once the delphinium blooms are finished,\u00a0deadhead them\u00a0and remove the stalk to encourage a small second bloom.<\/p>

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Pests and Problems<\/span><\/h2>

In too much shade, especially in humid climates, fungus issues can arise on the foliage.\u00a0Powdery mildew, botrytis, and leaf spot are all common problems that delphiniums struggle with. The best fungal control method is prevention, so make sure the plants are in well-ventilated areas and full sun to keep foliage dry. If your plant needs any supplemental watering, do it at the base so that the leaves stay dry.<\/p>

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Because these plants are tall, they often need staking or support from neighboring plants.<\/p>

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Delphiniums are\u00a0known to attract slugs<\/a>.<\/p>

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How to Propagate Delphinium<\/span><\/h2>

The best method for propagating delphiniums is to\u00a0take a basal cutting<\/a>\u00a0in spring when the new shoots appear. Cut a small side shoot below the soil level, being careful to take some of the base. Dip the base in rooting hormone and pot it in a mixture of potting soil and sand or perlite.<\/p>

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Types of Delphinium<\/span><\/h2>

‘Blue Butterfly’ Delphinium<\/span><\/h3>
\"'blue<\/div><\/div>
MIKE JENSEN<\/span><\/figcaption><\/figure>

Delphinium grandiflorum<\/i>\u00a0‘Blue Butterfly’ grows to only 14 inches tall and has deep blue flowers with a hint of purple. It tolerates heat better than other delphiniums, blooming through most of the summer. Zones 4-7<\/p>

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‘King Arthur’ Delphinium<\/span><\/h3>
\"king<\/div><\/div>
ED GOHLICH PHOTOGRAPHY INC<\/span><\/figcaption><\/figure>

Delphinium elatum<\/em>\u00a0‘King Arthur’ is one of the Round Table Hybrids with 5- to 6-foot-tall flower spikes. It has reddish-purple flowers with a creamy white center called a bee. Zones 3-7<\/p>

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‘Dasante Blue’ Delphinium<\/span><\/h3>
\"'dasante<\/div><\/div>
GRAHAM JIMERSON<\/span><\/figcaption><\/figure>

Delphinium elatum<\/i>\u00a0‘Dasante Blue’ is a compact selection with rich blue flowers with light purple tones. It grows 34 inches tall and 12 inches wide. Zones 4-7<\/p>

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Pacific Giants Series Delphinium<\/span><\/h3>
\"pacific<\/div><\/div>
GREG RYAN<\/span><\/figcaption><\/figure>

Delphinium elatum<\/i>\u00a0Pacific Giants Series are towering plants with bloom stalks reaching up to 7 feet tall. Colors range from light blue to white, pink, and purple. Zones 3-7<\/p>

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‘Summer Blues’ Delphinium<\/span><\/h3>
\"summer<\/div><\/div>
JUSTIN HANCOCK<\/span><\/figcaption><\/figure>

Delphinium grandiflorum<\/i>\u00a0‘Summer Blues’ offers soft blue flowers in summer. It grows 14 inches tall. Zones 4-7<\/p>

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‘Summer Stars’ Delphinium<\/span><\/h3>
\"'summer<\/div><\/div>
MARTY BALDWIN<\/span><\/figcaption><\/figure>

Delphinium grandiflorum<\/i>\u00a0‘Summer Stars’ is a dwarf variety that produces pure-white flowers in summer. It grows 12-14 inches tall. Zones 4-7<\/p>

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‘Summer Morning’ Delphinium<\/span><\/h3>
\"'summer<\/div><\/div>
COURTESY OF BENARY<\/span><\/figcaption><\/figure>

Delphinium grandiflorum<\/i>\u00a0‘Summer Morning’ is the first true pink variety of Chinese delphinium. It grows 12-14 inches tall, blooming all summer long on well-branched plants. Zones 4-7<\/p>

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Delphinium Companion Plants<\/span><\/h2>

Joe Pye Weed<\/span><\/h3>
\"joe<\/div><\/div>
MIKE JENSEN<\/span><\/figcaption><\/figure>

Joe Pye weed is a\u00a0showstopper of a prairie native, producing huge, puffy flower heads in late summer. It prefers moist soils, but with its extensive root system, it also tolerates drought well. It’s a large plant, growing 4 to 6 feet tall. Closely related, hardy ageratum is a spreading plant that grows to 2 feet tall. Another relative, white snakeroot, reaches 4 to 5 feet tall. All are great for naturalistic or cottage plantings and for attracting butterflies.<\/p>

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Salvias<\/span><\/h3>
\"blue<\/div><\/div>
STEPHEN CRIDLAND<\/span><\/figcaption><\/figure>

There are hundreds of\u00a0different types of salvias, commonly called sage. They all tend to share beautiful, tall flower spikes and attractive, often gray-green leaves. Countless sages (including the herb used in cooking) are available to decorate ornamental gardens, and new selections appear annually. They are valued for their very long blooming season, right up until frost. Not all are hardy in cold climates, but they are easy to grow as annuals. On square stems, clothed with often-aromatic leaves, sages carry dense or loose spires of tubular flowers in bright blues, violets, yellow, pinks, or reds that mix well with other perennials in beds and borders. Provide full sun or very light shade in well-drained average soil.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

This elegant perennial produces spires of blue blooms. Most commonly grown for its beautiful, tall spires of blue blooms, delphiniums have long been planted in perennial gardens. These elegant plants add a strong vertical element. Because some varieties can grow up to 7 feet tall, plant these at the back of a garden border. If blue isn’t your color, you can choose delphiniums in a few other colors, too! Delphiniums are sought after and planted for their blue flowers. These beautiful blues come in a variety of shades and forms. Many feature a white center, which adds a bright contrast to the deep, rich blue. Most delphiniums are in the blue and purple range, but they can also be found in pinks and reds. There are some stunning coral-colored varieties and rare yellow ones. These plants have attractive foliage in a pleasing green, with palm-shaped leaves like a fern. Delphinium plants…<\/p>\n

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