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Daylily 'Vesuvian Blackout'


Family: Hemerocallidaceae (hem-er-oh-kal-id-AY-see-ee) (Info)
Genus: Hemerocallis (hem-er-oh-KAL-iss) (Info)
Cultivar: Vesuvian Blackout
Hybridized by Apps
Registered or introduced: 1996
» View all varieties of Daylilies


36-48 in. (90-120 cm)


36-48 in. (90-120 cm)


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)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

Bloom Time:

Early midseason (EM)

Flower Size:

Small (3" to 4.5" diameter)

Blooming Habit:

Diurnal (diu.)

Flower Type:


Bloom Color:

Dark Purple/Black

Color Patterns:


Flower Fragrance:

No fragrance

Foliage Habit:

Dormant (dor.)



Awards (if applicable):

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


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

Tuscaloosa, Alabama

Columbus, Ohio

Pittsburgh, Pennsylvania

Fredericksburg, Virginia

Richmond, Virginia

Gardeners' Notes:


On Jan 26, 2008, DaylilyDiva219 from Falls Church, VA (Zone 7a) wrote:

I love dark daylilies, and "Vesuvian Blackout" didn't disappoint. I got it in May 2006 as a double fan, bare-root division at a local daylily society sale. It actually sent up a scape with a few blooms the following month, but it really came into its own in 2007. Many scapes, with lots of buds. The scapes were not remotely as tall as the database indicates. But since I grew it in a pot, perhaps that is why. I have to say that I liked the shorter scapes better, since they were in good proportion to the small flower.


On Mar 13, 2005, BCochran from Columbus, OH wrote:

A great nearly-black daylily. Purchased this one from the folks at Hoot Owl Hollow near Athens, OH.

The blooms are fairly small, and the plant itself does not get really big. But it is one of the earliest bloomers in our garden, and we get lots of compliments on it. The third year we had it, the plant produced 6 scapes with more than 30 buds. It does not appear to be a very fast multiplier.

The bright yellow center contrasts well with the dark, dark purple. It suits its name very well.