The common name for Allium caeruleum is blue world onion plant . This beautiful perennial works is have it off for its bulblike growth wont and can pass heights of 12 - 24 inches . It is aboriginal to a all-embracing range of realm , admit ironical slopes , steppes , and plains from the Caspian Sea to southwestern Siberia , central Asia , and northwestern China .

I have personally encountered the disconsolate globe Allium cepa in my own gardening and landscaping experiences . Its unique blue color makes it a standout in any garden or landscape design . The gloomy globe onion is not only visually appealing but also adds an interesting grain and kind to the overall musical composition .

When contain blue globe onions into a garden or landscape , it is crucial to consider their natural habitat . They thrive in dry slopes and knit , so it is best to provide them with well - enfeeble ground . I have determine that adding organic matter , such as compost , to the soil can better its drainage capabilities .

depressed world Allium cepa are also relatively low sustainment , making them a swell choice for busy gardener . They are drought - tolerant and can withstand menstruum of dryness , which is good in regions with limited rainfall . However , I have point out that they appreciate occasional lachrymation during prolonged periods of drought .

In terms of their appearance , blue-blooded globe onions produce stunning spherical flower head that are composed of legion minuscule , star - mold flowers . The flowers are typically a vibrant blue coloring , although magnetic variation in tint can occur . These eye - catching flower heading sit atop sturdy , unsloped stems that go forth from the bulbs .

One of the welfare of blue globe onions is their ability to pull in pollinators to the garden . Bees , butterflies , and other beneficial dirt ball are drawn to the nectar - copious flowers , which can aid support a level-headed ecosystem . In my own garden , I have observed an increase in pollinator activity after implant aristocratical world onions .

To spread blue globe onions , they can be grown from bulbs . Planting the bulbs in the autumn allows them to lay down their root systems before the onset of winter . I recommend implant them at a depth of around 3 - 4 inch and spacing them about 6 - 8 inches aside to allow for right emergence and development .

The common name for Allium caeruleum is profane globe Allium cepa . This bouncy perennial adds a unparalleled signature to garden and landscape with its striking downcast blossom and bellying growth habit . Its adaptability to dry slopes and plains clear it a various choice for various realm . Whether you are a veteran gardener or just starting out , the blue orb Allium cepa is a beautiful addition that is sure to captivate and inspire .

Caroline Bates