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    • Allium

    allium.jpg

    Allium (al-lee-um), Chives, Ornamental Onion, ramps, spring onion, ramson, wild leek, wood leek, and wild garlic; Lily Family,are often known as "the onions", although the edible onion is only one of many species in this genus, some of which bear strikingly handsome flowers. Native to many parts of the Northern Hemisphere; they are almost all hardy perennials. 

    Tolerates soil of any fertility and clay soil. These selections have not been known to reseed and is not invasive. It may be propagated in fall by digging it up and dividing the rhizome with the bulblets attached. Allium is typically pest and disease free. 

    Butterflies and honeybees adore the flowers' sweet nectar but deer and rabbits steer clear of this perennial beauty. Onion may be a big part of the human diet, but the flavor is a turn off for the grazers. Deer and rabbits only touch this plant as a last resort. The flowers, however, attract pollinators!

    Attributes: Border plants, Container, Cut flower or foliage, Drought Tolerant, Fragrant flowers or foliage, Mass Planting, Easy to grow. Attracts butterflies and honeybees. Deer and Rabbit resistant.

    Cannot ship to Idaho.
    • Allium 'Millenium' (4) 1-gallons Allium 'Millenium' (4) 1-gallons

      Allium

      Allium 'Millenium' (4) 1-gallons

      Allium 'Millenium' (4) 1-gallons Cannot ship to Idaho. Common Name: Onion-Ornamental. Zones 5 to 8 Full Sun to Part Shade. Mature height of 15 to 20 inches and a spread of 10 to 15 inches. Compact, upright clump of glossy green, thick and strappy...

      $120.96
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    • Allium 'Serendipity' (4) 1-gallons Allium 'Serendipity' (4) 1-gallons

      Allium

      Allium 'Serendipity' (4) 1-gallons

      Allium 'Serendipity' PPAF (4) 1-gallons Cannot ship to Idaho. Common Name: Ornamental OnionThe word 'serendipity' means an unexpected occurrence, and what a fitting name for this sport of the popular 'Millenium'! The sport shares all of the...

      $134.26
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    Alliums, also known as ornamental onions, are a diverse genus of flowering plants that include hundreds of species. While many people are familiar with alliums like onions, garlic, shallots, and chives for their culinary uses, ornamental alliums are grown specifically for their stunning and unique flower heads.

    Key characteristics of alliums:

    • Bulbous perennials: Alliums grow from bulbs, which are underground storage organs that allow the plants to survive during dormant periods.
    • Distinct aroma: Most alliums have a characteristic onion or garlic scent, which can be more or less pronounced depending on the species.
    • Showy flower heads: The flowers are typically arranged in dense, globe-shaped clusters (umbels) that can range in size from a few inches to several inches in diameter.
    • Variety of colors: Allium flowers come in a wide range of colors, including purple, pink, white, yellow, and blue.
    • Attractive to pollinators: Alliums are a good source of nectar and pollen, making them attractive to bees, butterflies, and other pollinators.
    • Deer and rodent resistant: The strong odor of alliums generally deters deer and other garden pests.

    Cultivation:

    Alliums are relatively easy to grow and require minimal care. They prefer well-drained soil and full sun to partial shade. Plant the bulbs in the fall, and they will bloom in the spring or early summer. Alliums are drought-tolerant once established, but they will benefit from occasional watering during dry periods.

    Uses:

    • Ornamental gardens: Alliums add a unique and dramatic touch to flower beds, borders, and rock gardens.
    • Cut flowers: The long-lasting blooms of alliums make them excellent cut flowers for fresh or dried arrangements.
    • Naturalizing: Some allium species can be naturalized in meadows or woodland areas.
    • Culinary: While most ornamental alliums are not grown for culinary purposes, some species, such as chives and garlic chives, have edible leaves or bulbs.

    Alliums are a versatile and beautiful addition to any garden. Their unique flower heads, long bloom time, and pest resistance make them a popular choice for gardeners of all levels of experience.

    Allium FAQ

    Allium is a large genus of flowering plants that includes many of our favorite culinary herbs and vegetables, such as onions, garlic, shallots, leeks, and chives. The genus name "Allium" comes from the Latin word for garlic, and there are over seven hundred species of alliums found all over the world, except for Antarctica.

    Alliums are typically characterized by their strong, pungent odor and flavor, which is caused by the presence of sulfur-containing compounds. They also have bulbs or corms, which are underground storage organs that allow them to survive through cold winters or dry summers.

    Many alliums are also popular ornamental plants, with beautiful flowers that come in a wide range of colors, shapes, and sizes. Some of the most popular ornamental alliums include ornamental garlic, flowering onion, and globe alliums.

    Here are some of the most common types of alliums:

    • Onion (Allium cepa): The most common type of onion, onions are used in a wide variety of cuisines around the world. They have a strong, pungent flavor that can be mellowed by cooking.
    • Garlic (Allium sativum): Garlic is another popular culinary herb with a strong, pungent flavor. It is used in many cuisines around the world and is known for its many health benefits.
    • Shallot (Allium cepa var. aggregatum): Shallots are similar to onions, but they have a milder flavor and are often used in French cuisine.
    • Leek (Allium porrum): Leeks are a type of onion with a long, white stalk and green leaves. They have a mild, onion-like flavor and are often used in soups and stews.
    • Chives (Allium schoenoprasum): Chives are a perennial herb with thin, green leaves and small, purple flowers. They have a mild, onion-like flavor and are often used as a garnish.

    Alliums are a versatile group of plants that can be used for both culinary and ornamental purposes. They are a valuable addition to any garden and can be enjoyed for their beauty, flavor, and health benefits.

    Planting alliums is a fairly straightforward process, but there are a few key things to keep in mind to ensure success:

    Timing:

    • Fall planting: The ideal time to plant most allium bulbs is in the fall, between late September and November, depending on your climate. This allows the roots to establish themselves before the winter freeze and gives them a head start on spring growth.
    • Spring planting: While fall planting is preferred, you can also plant some allium varieties in early spring, just as the danger of frost has passed. However, spring-planted alliums may not bloom as well as those planted in the fall.

    Choosing a location:

    • Sunlight: Alliums generally prefer full sun, although some varieties can tolerate partial shade.
    • Drainage: Well-draining soil is essential for alliums, as they are susceptible to rot if their roots sit in waterlogged soil. If your soil is heavy clay, you can amend it with sand or compost to improve drainage.
    • Spacing: The spacing between allium bulbs will vary depending on the variety. Taller varieties may need to be spaced 8-12 inches apart, while shorter varieties can be spaced as close as six inches apart. You can always refer to the specific planting instructions on the packaging for guidance.

    Planting process:

    • Dig holes that are 2-3 times deeper than the height of the bulb. For example, if your bulb is two inches tall, dig a hole that is 4-6 inches deep.
    • Place the bulb in the hole with the pointy end facing up.
    • Backfill the hole with soil and water well.
    • You do not need to fertilize alliums when you plant them, but you can add a light layer of compost to the planting area.

    Aftercare:

    • Water your alliums regularly, especially during their first year of growth. However, avoid overwatering, as this can lead to rot.
    • Once the flowers have faded, you can deadhead them if you wish. However, you can also leave the seed heads on the plants for winter interest.
    • In the spring, you can fertilize your alliums with a balanced fertilizer.
    • After the foliage has died back in late summer or fall, you can cut it back to the ground.

    Additional tips:

    • When choosing allium varieties, consider the height, color, and bloom time of the flowers. This will help you create a beautiful and interesting display in your garden.
    • Alliums are relatively pest- and disease-resistant, but they can be susceptible to deer and rabbits. If you have problems with these pests, you may need to take steps to protect your plants.
    • Alliums are generally low-maintenance plants that will provide you with years of enjoyment. With a little care, they are sure to be a welcome addition to your garden.

    I hope this information helps you successfully plant and grow your own alliums!

    The genus Allium boasts over seven hundred species, offering a stunning diversity of varieties, each with its own unique charm. Here is a glimpse into some popular categories to whet your gardening appetite:

    Early Bloomers:

    • Purple Sensation (Allium aflatunense): A classic favorite, boasting raspberry-purple spheres atop 24-inch stems, blooming from late spring to early summer.
    • Neapolitanum (Allium neapolitanum): Nicknamed "drumsticks" for its deep purple, egg-shaped flower heads, it graces gardens from late spring to early summer.
    • Azureum (Allium azureum): True to its name, this charmer flaunts sky-blue, densely packed florets in late spring, adding a pop of cool color to your borders.

    Mid-Season Bloomers:

    • Globemaster (Allium Globemaster): A showstopper indeed, its massive, purple globes can reach up to eight inches in diameter, gracing gardens in mid to late summer.
    • Millenium (Allium Millenium): This award-winner flaunts rosy-violet, star-shaped blooms in profusion, adding delightful color and texture to mid-summer borders.
    • Nigrum (Allium nigrum): Not actually black as its name suggests, this mid-summer bloomer offers unique, star-shaped, greenish-white flowers held aloft on tall stems.

    Late Bloomers:

    • Sphaerocephalon (Allium sphaerocephalon): A conversation starter, this late bloomer features lime-green spheres that mature to a stunning burgundy, making a bold statement in fall gardens.
    • Mont Blanc (Allium Mont Blanc): Living up to its name, this majestic giant boasts pristine white, globe-shaped flowers on towering stems, adding elegance to late summer and fall gardens.
    • Star of Persia (Allium Cristophii): A true star, this late bloomer features clusters of starry, purple florets with prominent stamens, creating a mesmerizing textural display.

    Beyond these categories, explore the diverse world of alliums with:

    • Drumstick Alliums: Featuring distinctive, elongated flower heads in various colors, like the deep purple Ambassador or the yellow Golden Jubilee.
    • Unusual Alliums: For the adventurous gardener, there is the hair-like Hair or the firework-reminiscent Schubertii.

    Remember, this is just a taste of the incredible variety the Allium genus offers. With their diverse colors, shapes, sizes, and bloom times, there is sure to be an allium to captivate your heart and add unique flair to your garden.

    Caring for your alliums is relatively easy, and with a little TLC, they will reward you with their stunning blooms year after year. Here is a breakdown of their key needs:

    Planting:

    • Timing: Plant most alliums in fall, between late September and November, for best results. Spring planting is also possible, but blooms might be less impressive.
    • Location: Choose a sunny spot with well-draining soil. Avoid waterlogged areas, as alliums are susceptible to rot.
    • Spacing: Refer to the specific variety's instructions, but generally, taller alliums need 8-12 inches between plants, while shorter ones can be spaced six inches apart.

    Watering:

    • Water regularly, especially during the first year and during dry spells. However, avoid overwatering, as this can lead to rot.
    • Once established, alliums are generally drought tolerant.

    Feeding:

    • You do not need to fertilize alliums heavily. A light application of compost in spring is sufficient.
    • Avoid high-nitrogen fertilizers, as these can promote excessive foliage growth at the expense of flowers.

    Deadheading:

    You can deadhead spent flowers if you prefer a tidier look. However, leaving the seed heads on adds winter interest and attracts pollinators.

    Foliage:

    Allium foliage can die down after flowering. You can cut it back to the ground in late summer or fall once it has completely browned.

    Dividing:

    Every 3-4 years, you can divide overcrowded clumps in fall. Dig up the bulbs, gently separate them, and replant the healthiest ones.

    Pests and Diseases:

    Alliums are generally pest- and disease-resistant. However, they can be susceptible to deer and rabbits. If you have problems with these pests, you may need to take steps to protect your plants with fencing or repellents.

    Additional Tips:

    • When choosing allium varieties, consider their height, color, and bloom time to create a visually appealing display in your garden.
    • Alliums naturalize well and can self-seed, adding to their carefree appeal.
    • Let their unique foliage add texture and interest to your garden borders, even before they bloom.
    • Enjoy the diverse shapes, sizes, and colors of alliums throughout the season, from the early-blooming amethyst globes to the late-blooming starry clusters.

    By following these simple guidelines, you can ensure your alliums thrive and bring their unique beauty to your garden for many seasons to come.

    Allium plants are well-known for being pollinator magnets, attracting a wide variety of beneficial insects like bees, butterflies, and hummingbirds. Here is why they are so effective:

    Visual Appeal:

    • Bold colors: Many alliums boast vibrant blooms in shades of purple, pink, yellow, white, and even blue, providing a visual feast for pollinators.
    • Unique shapes: From spherical globes and star-shaped clusters to firework-like bursts and delicate drumsticks, the diversity of allium flowerheads offers something for every pollinator's preference.
    • Long bloom times: Different allium varieties bloom throughout the season, extending the nectar and pollen buffet for pollinators from early spring to late fall.

    Delicious Rewards:

    • Nectar: Alliums produce copious amounts of nectar, a sugary liquid that serves as a vital food source for pollinators. The nectar is easily accessible, thanks to the open structure of many allium flowers.
    • Pollen: Allium pollen provides protein and essential nutrients for pollinators, especially for developing young.

    Pleasant Aromas:

    • Sweet scents: Many alliums emit a sweet, fragrant aroma that attracts pollinators from afar, guiding them to the nectar and pollen bounty.
    • Distinct scents: Some alliums have unique scents, like the oniony fragrance of chives or the garlicky aroma of certain ornamental alliums, further enticing pollinators.

    Overall Benefits:

    • Increased pollination: By attracting and supporting pollinators, alliums contribute to the improved pollination of other plants in your garden, leading to higher yields and better fruit set.
    • Biodiversity boost: The presence of alliums encourages a diverse population of pollinators in your garden, creating a healthy and balanced ecosystem.
    • Visual delight: Not only do alliums benefit pollinators, but their stunning blooms and interesting foliage also add beauty and texture to your garden, providing a visual treat for you as well.

    So, if you are looking for a way to create a pollinator-friendly haven in your garden, planting alliums is a fantastic choice. Their beauty, delicious offerings, and enticing aromas will surely attract a vibrant community of pollinators, enriching your garden and contributing to a healthy ecosystem.

    While generally robust and low-maintenance, alliums can be susceptible to certain pests and diseases. Here are some of the most common ones to be aware of:

    Pests:

    • Thrips: These tiny, sap-sucking insects can cause silvery streaks and distorted leaves. Insecticidal soap or neem oil can be effective control methods.
    • Onion flies: The larvae of these flies’ tunnel through the bulbs, causing damage and rotting. Planting alliums under netting or using floating row covers can help deter them.
    • Bulb mites: These microscopic mites live inside the bulbs and feed on their tissues, causing stunted growth and distorted leaves. Hot water treatment of bulbs before planting can help control them.
    • Aphids: These soft-bodied insects cluster on leaves and stems, sucking sap and causing wilting and stunted growth. Insecticidal soap or spraying with water can help knock them off.

    Diseases:

    • Downy mildew: This fungal disease causes yellowing and wilting of leaves, often starting with younger leaves. Good air circulation and avoiding overhead watering can help prevent it. Fungicides can be used if necessary.
    • Rust: This fungal disease manifests as orange or brown pustules on leaves, eventually causing them to yellow and fall off. Providing good air circulation and removing infected leaves promptly can help control it. Fungicides can also be used.
    • Botrytis rot: This fungal disease causes gray mold to grow on leaves and bulbs, especially in wet conditions. Good air circulation and avoiding overhead watering are crucial for prevention. Fungicides can be used in severe cases.
    • Neck rot: This fungal disease causes the neck of the bulb to rot and soften, often starting after harvest. Proper drying and storage of bulbs at cool temperatures with good ventilation can help prevent it.

    Additional tips for preventing pests and diseases:

    • Plant resistant varieties: Look for allium varieties known to be resistant to specific pests and diseases common in your area.
    • Practice crop rotation: Avoid planting alliums in the same spot year after year, as this can build up pest and disease populations in the soil.
    • Maintain good hygiene: Remove and destroy any infected plant parts promptly to prevent the spread of diseases.
    • Keep the garden clean: Clear away debris and weeds around your alliums, as these can harbor pests and diseases.
    • Encourage beneficial insects: Planting companion plants that attract ladybugs, lacewings, and other beneficial insects can help control pest populations naturally.

    By following these tips and staying vigilant, you can help keep your alliums healthy and thriving, allowing them to reward you with their stunning blooms and culinary delights.

    Alliums are not only beautiful in the garden, but they also make stunning additions to floral arrangements. Their unique shapes, vibrant colors, and interesting textures add depth and drama to bouquets and centerpieces. Here is why you should consider using alliums in your floral arrangements:

    Variety and Beauty:

    • Diverse shapes: Alliums come in a wide variety of shapes, from spherical globes and star-shaped clusters to firework-like bursts and delicate drumsticks, offering endless possibilities for creative arrangements.
    • Bold colors: Many alliums boast vibrant blooms in shades of purple, pink, yellow, white, and even blue, providing a pop of color and visual interest to your arrangements.
    • Long-lasting blooms: Most allium varieties have long-lasting blooms, ensuring your arrangements stay fresh and beautiful for days.

    Textural Contrast:

    • Unique foliage: Allium foliage can be quite interesting, with strappy green leaves or even curly tendrils, adding texture and contrast to your arrangements.
    • Dried seed heads: Even after the flowers fade, alliums often produce attractive seed heads that add a textural element and natural flair to dried arrangements.

    Tips for Using Alliums in Arrangements:

    • Choose the right variety: Consider the size, shape, color, and bloom time of the allium variety you choose to complement your overall design.
    • Condition the stems: Before using, cut the stems and condition them in water with floral preservative for several hours.
    • Pair with complementary flowers: Alliums pair well with a wide variety of flowers, such as roses, lilies, tulips, hydrangeas, and wildflowers.
    • Consider using dried alliums: Dried alliums can add a rustic and textural element to dried arrangements or wreaths.

    Be mindful of the scent: Some alliums have a strong oniony or garlicky scent, which may not be suitable for all arrangements.

    With their versatility, beauty, and long-lasting blooms, alliums can be a wonderful addition to your floral arrangements. So, next time you are creating a bouquet or centerpiece, do not hesitate to incorporate these unique and eye-catching flowers!

    Whether or not an allium is invasive depends on the specific species and your local environment. While many alliums are well-behaved garden plants, some species can become aggressive and spread rapidly, displacing native vegetation and disrupting ecosystems.

    Here is a breakdown:

    Invasive Alliums:

    • Wild garlic (Allium vineale): This species spreads quickly through bulbs and root fragments, forming dense mats that can crowd out other plants. It is considered invasive in many parts of North America and Europe.
    • Three-cornered leek (Allium triquetrum): Similar to wild garlic, this species spreads aggressively and can be difficult to control. It is invasive in parts of North America and Europe.
    • Nodding onion (Allium cernuum): This wildflower species can become invasive in certain areas, especially in disturbed habitats.

    Non-invasive Alliums:

    • Ornamental alliums: Most commonly cultivated ornamental alliums like globemaster, millennium, and purple sensation are not considered invasive. They generally do not readily self-seed and are well-behaved in gardens.
    • Chives (Allium schoenoprasum): This popular culinary herb is not invasive and readily forms clumps that do not spread aggressively.

    Things to Consider:

    • Local regulations: Check with your local authorities or horticultural societies to see if any specific allium species are considered invasive in your area.
    • Growing conditions: Alliums are more likely to become invasive in disturbed areas with ample sunlight and moisture.
    • Responsible gardening: Avoid planting known invasive alliums in your garden and be mindful of where you dispose of plant material.

    By choosing non-invasive allium varieties and practicing responsible gardening, you can enjoy the beauty and benefits of these plants without harming the environment.

    The best time to divide allium plants depends on the specific variety and your climate, but there are two main options:

    Fall:

    Generally considered the ideal time for most allium varieties.

    • Timing: In most temperate climates, the ideal window for fall division is between late September and November, after the foliage has died back but before the ground freezes.

    Benefits:

    • The cooler fall temperatures and increased moisture help the divisions establish themselves before winter.
    • The plants have a longer period of dormancy to recover before the spring growth spurt.

    Spring:

    • An alternative option, but not always as successful as fall division.
    • Timing: Divide plants in early spring, just as the new growth emerges from the ground.

    Considerations:

    • Spring-divided alliums may not bloom as well as those divided in fall.
    • Ensure the danger of frost has passed before dividing.
    • Here are some additional factors to consider when deciding when to divide your allium plants:
    • Variety: Some allium varieties, such as chives and garlic, can be divided more frequently than others. Check the specific recommendations for your chosen variety.
    • Plant size and health: Divide overgrown or tired-looking clumps to rejuvenate them.
    • Climate: In warmer climates, you may be able to divide alliums even later in the fall or earlier in the spring.

    Here is a quick summary:

    • For most allium varieties in temperate climates: Divide in fall (late September to November) for the best results.
    • Spring division (early spring) is an alternative option, but flowering may be less impressive.
    • Consider the specific variety, plant size, health, and your climate when making your decision.

    By following these guidelines, you can choose the best time to divide your allium plants and ensure they thrive in your garden.

    Ornamental alliums are prized for their unique and striking appearance, and while they are related to onions and garlic, their smell is often much milder and sometimes even sweet! Here's a breakdown of their looks and smell:

    Flower Heads: The most distinctive feature is their flower heads, which are typically globe-shaped clusters (umbels) composed of many tiny florets. These can range in size from a golf ball to a softball, depending on the variety.  

    Shapes: While the classic pom-pom shape is most common, some alliums have more unique forms, like:

    Star-shaped: Such as Allium christophii (Star of Persia) with its spiky, metallic-looking florets.  

    Semi-circular: Like Allium cernuum (Nodding Onion) with its drooping clusters.

    Colors: Alliums offer a wide range of colors, including:

    • Purple: The most common color, with shades ranging from deep violet to lavender.
    • Pink: From pale pink to vibrant rose.  
    • White: Crisp and clean, often with contrasting stamens.  
    • Yellow: Less common, but varieties like Allium flavum offer sunny hues.  
    • Blue: A few rare varieties, like Allium caeruleum, have true blue flowers.  

    Smell:

    • Generally Mild: While alliums belong to the onion family, their scent is often much less pungent than their culinary cousins.
    • Onion-y Undertones: Some alliums have a faint onion or garlic scent, especially when the leaves or stems are crushed. This is usually not noticeable unless you are up close.
    • Sweet Notes: Many alliums have a subtle, sweet fragrance, which can be especially pronounced in varieties like Allium 'Millenium'.
    • Attracting Pollinators: The scent, whether oniony or sweet, plays a crucial role in attracting bees, butterflies, and other pollinators to the garden.

    Keep in mind:

    • Variety is Key: The intensity of the smell can vary significantly between different allium varieties.
    • Personal Perception: How strong you perceive the scent can also depend on your individual sensitivity to smell.

    If you are sensitive to strong onion or garlic odors, it is a good idea to choose allium varieties known for their milder or sweeter fragrance, or to plant them in a well-ventilated area of your garden.