Allium, Giant Ornamental Onion, Giant Allium 'Globemaster'

On Jun 20, 2017, Conan from Rochester, NY wrote:

These are truly GIANT and amazing.
Planted 4 huge beds of these last fall- allium in the back, crown imperials in the center and daffodils in the front.
People are constantly stopping to comment on them.
Alternated the Globemaster with the Ambasador varieties - Ambassador is a darker purple, slightly smaller, and blooms a couple weeks later. Blossoms on the Globemaster are easily 6" in diameter.
Some of the plants seem to have genetic mutations, as some have 4 stems per blossom, fused together- unusual, but not unslightly
Have purchased all my bulbs from A.D.R. Bulbs Inc. - wholesale.
The quality, size and price of their bulbs cannot be beat.
(They only sell wholesale)

I had put in approx. 150 of the slightly smaller var... read moreieties about 3 years ago - Mont Blanc (white) and Gladiator (purple). They were fantastic first year, ho-hum second year.
This spring, I applied bone meal and bulb fertilizer to ALL the sprouting bulbs. WOW - what a difference. I had never bothered to fertilize any bulbs when they sprouted , but after seeing the way the alliums and daffodils responded to being fertilized, I will now do it every spring.

On Jun 23, 2015, NHBabs from Concord, NH wrote:

This Allium hybrid is sterile, so there is no seeding around and the flowers are longer lasting than other large Alliums. It returns well here in central NH and I have had neighbors stop to ask what it is during bloom time. The color has a bit less pink tone than some others, and the flowers are extra large.

On Feb 20, 2012, gardengirl86 from Middleboro, MA wrote:

Many years ago I planted Giant Allium, and I have been cursing them ever since. They quickly took over my garden, and after about 30 years I am still trying to get rid of them. They quickly lost their giant size and reverted back to small onion-like plants that keep popping up everywhere. How about an article on how to keep them under control.
Their bulbs seem to grow like little strings of pearls and when you think you have the entire thing, the string breaks and you just know that there is still a piece of it in the ground. Will never grow them again. But that doesn't matter because I know I will never get rid of them anyway.

On Jun 29, 2009, carpathiangirl from Akron, OH (Zone 5a) wrote:

Easy-to-grow, undemanding and interesting plant here in my 5a zone.

On Jan 4, 2009, lakeshoredrive from Chicago, IL wrote:

The Globemaster is just beautiful. Like a giant lollipop, not picky about soil, even tolerating salt.