Magnolia 'Vulcan'


Family: Magnoliaceae
Genus: Magnolia (mag-NO-lee-a) (Info)
Cultivar: Vulcan



Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Sun to Partial Shade



Foliage Color:

Unknown - Tell us


8-10 ft. (2.4-3 m)


10-12 ft. (3-3.6 m)


USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Where to Grow:

Grow outdoors year-round in hardiness zone



Bloom Color:


Scarlet (dark red)

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Spring

Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

Pine Grove, California

San Leandro, California

Dunnellon, Florida

Bishopville, Maryland

Cambridge, Massachusetts

Brooklyn, New York

Easley, South Carolina

Fairfax Station, Virginia

Bothell, Washington

show all

Gardeners' Notes:


On Apr 15, 2019, Cinmass from Cambridge, MA wrote:

My tree has grown from a whip into a handsome tree, but has never flowered, hence my neutral review. It appears healthy and I was very encourage by another gardners remarks that it took eight years before they saw their first bloom. It has been around that time now for us, so I am hoping for this year or next.

Incidentally, I have a black tulip variety that I bought more mature, ball in burlap from a reputable nursury (Sylvan. Cant say enough about them) and it still took a few years for a bloom. This one is in a less-protected site than Vulcan. A few years, I think the buds got zapped by frost. Last year was the first time (its five now) its buds opened and this year, its A) earlier and B) gangbusters. I think they like to be in situ and take their time. Worth it.


On Nov 13, 2018, BorisBauer from Easley, SC wrote:

A beautifully shaped tree which took at least eight years before I saw it's first bloom. The bloom color has been quite variable for me over the past 27 years with only twice it having a dark, rich, almost red coloration. It tends to bloom a bit early in the US Southeast; therefore, susceptible to frost damage some years.


On Aug 18, 2017, lsjogren from Vancouver, WA wrote:

Got a large one of these from a nursery. Planted it next to a star magnolia in my yard that's been there a long time.

It grew slowly the first few years and this year it just shriveled up and I thought it was completely dead.

Then I noticed the other day it still has some runners coming up out of the ground.

So I am going to keep trying.

I am neutral at this point because the soil in that part of my yard is absolutely terrible. That star magnolia is a great tree, but for all I know they may have had to go through a lot to get that tree established in that bad soil.

If the runners die off I will probably try buying another Vulcan but try to get a smaller cheaper one. Maybe it will get established easier if it ca... read more


On Apr 5, 2012, riv from Pine Grove, CA wrote:

i planted one of these in san leandro several years ago and it is now quite big and beautiful. the flower colour is just amazing. mine has the deepest magenta red flowers and as it ages, there are more and more of them. it really did not take it long to grow from about 6' to over 10', maybe 5 years? that's not too bad. it does seem to have a more columnar habit than most magnolias, though...maybe it's just my tree that has it. i've never seen another one anywhere to compare.

i now live in the sierra foothills and got one from the dreaded and sometimes hated wayside gardens recently. luckily, it is healthy with huge roots coming out of the pot. i've had some bad luck with them, going from great experiences beginning in the '90s to horrible experiences (when park seed took t... read more


On Aug 3, 2009, Kell from Northern California, CA (Zone 9b) wrote:

This is my favorite magnolia. The first time I saw it 3 years ago, I stopped dead in the road just staring. It is that big, bold and beautiful. The darkest magnolia I have seen so far. A real delight!


On Sep 18, 2008, baiissatva from Dunedin,
New Zealand wrote:

Our tree was mislabeled and is actually magnolia 'black tulip.'
I've shifted the description accordingly.