Black Garlic (Allium multibulbosum 'Silver Spring') - Garden.org

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General Plant Information (Edit)
Plant Habit:	Herb/Forb
Life cycle:	Perennial
Sun Requirements:	Full Sun
Water Preferences:	Mesic
Soil pH Preferences:	Slightly acid (6.1 – 6.5) Neutral (6.6 – 7.3) Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness:	Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone:	Zone 8b
Plant Height:	24 -30 inches
Flowers:	Showy Fragrant Other: Forms tightly clustered 4 inch globes.
Flower Color:	Bi-Color: White flowerettes with raspberry centers
Bloom Size:	Under 1"
Flower Time:	Late spring or early summer
Underground structures:	Bulb
Uses:	Cut Flower
Dynamic Accumulator:	K (Potassium) Ca (Calcium) Na (Sodium)
Wildlife Attractant:	Butterflies
Resistances:	Deer Resistant Rabbit Resistant Drought tolerant
Pollinators:	Bees Various insects
Containers:	Suitable in 3 gallon or larger

Common names

Black Garlic
Broadleaf Garlic

Botanical names

Accepted: Allium multibulbosum
Synonym: Allium nigrum subsp. multibulbosum

Photo Gallery

Location: Stuart, OK
Date: 2017-03-29

Uploaded by KarenHolt

Location: Harper post, full sun
Date: 2013-0531
Purchased from John Scheepers

Uploaded by pirl

Location: My Garden, UK
Date: 2021-07-31

Uploaded by RachaelHunter

Location: Corner of dog's pen - mostly morning sun only.
Date: 2015-0531
Brightens up the shade to a very minor point.

Uploaded by pirl

Location: Harper post, full sun
Date: 2013-05-21
Nice with A. 'Rosenbachianum'.

Uploaded by pirl

Location: Harper fence, morning sun
Date: 2013-0531
In the garden.

Uploaded by pirl

Location: Harper fence, morning sun
Date: 2013-0601
To show the big difference in height of Silver Spring.

Uploaded by pirl

Location: Sun Zone 6a
Date: 2012-05-24
Another image,just cant help myself.

Uploaded by ge1836

Location: Harper post, full sun
Date: 2013-0515
Disappointing amount of return blooms from 2013.

Uploaded by pirl

Location: Harper post, full sun
Date: 2014-0622

Uploaded by pirl

Location: Harper post, full sun
Date: 2014-0622
Appears very tall but probably only around 24".

Uploaded by pirl

Location: Harper post, full sun
Date: 2013-0619
6/19 - on the way out from first bloom of 5/31

Uploaded by pirl

Location: Harper post, full sun
Date: 2013-0515
On the right. The purple on the left is A. 'Rosenbachianum'

Uploaded by pirl

Location: Sun Zone 6a
Date: 2012-05-16

Uploaded by ge1836

Location: Sun Zone 6a
Date: 2012-05-13
First year in my garden.Almost open.I have enjoyed the sequense f

Uploaded by ge1836

Location: Stuart, OK
Date: 2017-03-29
1st season

Uploaded by KarenHolt

Location: Part sun Zone 6
Date: 2012-03-16
Planted the bulbs in mid October.A few weeks later growth appeare

Uploaded by ge1836

Location: sun zone 6
Date: 2012-04-02
Its April.We have had an exceptionally warm March and all bulbs a

Uploaded by ge1836

Location: Sun Zone 6a
Date: 2012-05-16
Fullbloom with iris Creative Accent

Uploaded by ge1836

This plant is tagged in:

Comments:

Posted by ge1836 (Pittsford NY - Zone 6a) on Oct 9, 2011 7:13 AM concerning plant:

I don't believe this is a Drumstick type allium.
I have planted these bulbs this fall and when looking up details, found Silver Spring as blooming in late May through June, not late June through July, as most Drumsticks do, at least here in Z6 .
It also has 4 inch round blooms, and blooms on 24 inch stems.
I could not find a full plant photo to be sure of the leaf type but I believe Silver Spring has flat leaves, not the grassy leaf type.
This allium is listed as "flowering onion allium".
I will photo my alliums next spring and submit a full-plant photo.

Reply to this comment

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