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Hybrid Sweet Autumn Clematis, Sweet Autumn Virgin's Bower, Japanese Clematis 'Sweet Summer Love'

Clematis

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Sweet Summer Love
Additional cultivar information:(PP24044)
Hybridized by Marczyski
Registered or introduced: 2012
» View all varieties of Clematis

Group:

Late Mixed

Height:

20-30 ft. (6-9 m)

Spacing:

9-12 in. (22-30 cm)

Hardiness:

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)

Bloom Color:

Blue-Violet

Purple

Flower Fragrance:

Very Fragrant

Bloom Shape:

Single

Bloom Diameter:

Small - less than 2 inches (5 cm)

Bloom Time:

Late Summer/Early Fall

Mid Fall

Sun Exposure:

Sun to Partial Shade

Other details:

May be a noxious weed or invasive

Danger:

All parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Pruning Groups:

Group 3 - Summer/Fall bloomers; prune hard in early spring

Patent Information:

Patented

Propagation Methods:

From seed; direct sow outdoors in fall

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Grow outdoors year-round

Regional

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

Umatilla, Florida

Carmel, Indiana

Gardeners' Notes:

1
positive
1
neutral
1
negative
RatingContent
Negative

On Jun 29, 2016, Midd from Carmel, IN wrote:

I have two of these, which bloomed for the first time this summer.

I am quite unimpressed!

The flowers are small and VERY dark maroon. There is nothing the least cranberry about them.

Between being so very small and opening and staying a very dark maroon color, they don't stand out or show up in the least.

I have no clue where all the photos came from, with a cranberry tone, because these flowers have zero of that!

Positive

On Jun 1, 2015, laurel1949 from surrey, bc,
Canada wrote:

I planted two Sweet Summer Love clematis about one month ago in South Surrey, British Columbia. (May 1, 2015). They are growing like weeds so far and climbing about 6 feet up my porch and on a fence--very full and dense. They are healthy and doing well and are super fast growers. I will report back when they start blooming. I am excited at their potential.
It is now July 18, 2015 and it is six weeks or so since I planted two Sweet Summer Love clematis. They climbed about 8 feet and are in bloom. They are lovely and charming with a light sweet scent. I love them. Next year will be a real show. I have had many clematis over the years and I believe this to be the most charming and non fussy clematis that I have ever had.

Neutral

On Jul 3, 2014, coriaceous from ROSLINDALE, MA wrote:

Graham Rice says that it reaches 11 feet in height and blooms from early July to September, and that it's intensely fragrant. Flowers are just under 2", opening deep wine red and aging through purple to violet. Plants should be spaced no closer than around 4'.

(June 29, 2016) It's June 29 and my plant is about to bloom. (Boston Z6)

This is a new hybrid that first bloomed in 2007, bred by Szczepan Marczynski in Poland. He prefers not to reveal the parents and states only that it's related to C. flammula, commonly called virgin's bower. It should not be confused with sweet autumn clematis or Japanese clematis (C. terniflora, now called C. paniculata again), a rampant grower which can be invasive.

It can only be propagated by cuttings. I don't kno... read more

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