Clematis 'Jackmanii' in the Clematis Database

Data specific to Clematis (Edit)
Raised by:	George Jackman
Country of Origin:	England
Growing Zones:	USDA Zone 4 USDA Zone 5 USDA Zone 6 USDA Zone 7 USDA Zone 8 USDA Zone 9 USDA Zone 10 USDA Zone 11
Plant Group:	Jackmanii
Typical Plant Size:	Typically 10 to 15 feet
Pruning Group:	Group 3 - Hard pruning recommended in early spring
Bloom Diameter:	Medium - between 4 to 6 inches
Bloom Color (Tepals):	Deep Purple hue
Center Color (Anthers):	Cream/White anthers
Bloom Shape:	Single
Preferred Light:	Tolerates partial shade Prefers full sun
Moisture Requirements:	Average moisture requirements
Additional Information:	Free-flowering (very floriferous)
Recommendations:	Good choice for beginners (easy to grow) Good choice for shaded areas or northern walls Good choice for hot climates
Awards:	Royal Horticultural Society Award of Garden Merit

General Plant Information (Edit)
Plant Habit:	Vine
Life cycle:	Perennial
Sun Requirements:	Full Sun to Partial Shade
Plant Height:	10-15 feet
Leaves:	Deciduous
Flowers:	Showy
Flower Color:	Purple
Flower Time:	Summer Late summer or early fall
Resistances:	Deer Resistant
Awards and Recognitions:	RHS AGM
Child plants:	2 child plants

Common names

Clematis

Photo Gallery

Uploaded by bumplbea

Location: My Garden, Arvada, Colorado
Date: 2008-07-11

Uploaded by tabby

Uploaded by Fleur569

Uploaded by bumplbea

Uploaded by victor

Uploaded by Calif_Sue

Uploaded by Cat

Uploaded by vic

Uploaded by skopjecollection

Location: Oxfordshire, England
Date: 2019-07-11
deservedly popular the world over

Uploaded by cliftoncat

Location: Lincoln NE zone 5
Date: 2018-06-08
KODAK Digital Still Camera

Uploaded by stilldew

Location: Millinocket, Maine
Date: 2022-07-06
First year here for Jackmanii

Uploaded by TheMainer

Uploaded by SoCalGardenNut

Uploaded by Calif_Sue

Location: My Gardens
Date: June 18, 2014
A Single Bloom

Uploaded by TBGDN

Location: My Gardens
Date: June 19, 2013
Close-Up View

Uploaded by TBGDN

Uploaded by Fleur569

Location: Fairfax, VA | May, 2023
Date: 2023-05-08

Uploaded by sedumzz

Date: c. 1936
photo from the 1936 catalog, James I. George & Son, Fairport, New

Uploaded by scvirginia

Uploaded by Paul2032

Uploaded by Calif_Sue

Location: Terrace garden left side.
Date: 2012-0622
Shown with sedum Angelina.

Uploaded by pirl

Uploaded by Calif_Sue

Uploaded by Lucichar

Uploaded by Calif_Sue

Location: Backing up to 3 of the compost piles.
Date: 2005-0803
At this point it's so huge it has to get cut back.

Uploaded by pirl

Location: Harper post, full sun
Date: 2013-0317
Starting grow - see the leaf buds?

Uploaded by pirl

Uploaded by Seedsower

Uploaded by Calif_Sue

Location: My backyard in Allentown, PA
Date: 9 November 2016
Jack, still working into November, producing a flower on a damp d

Uploaded by marsrover

Location: My backyard in Allentown, PA
Date: 29 October 2106
Jack is still trying to produce flowers in late October.

Uploaded by marsrover

Uploaded by Calif_Sue

Uploaded by 4susiesjoy

Location: Cedarhome, Washington
Date: 2009-07-12

Uploaded by Bonehead

Uploaded by sedumzz

Location: Chicago
Date: June
A seedling - unbelievable

Uploaded by pitimpinai

The clematis blooms in this photo look like little pinwheels!

Uploaded by beckygardener

Location: Backing up to 3 of the compost piles.
Date: 2006-0701
Just one of very many blooms.

Uploaded by pirl

Location: Backing up to 3 of the compost piles.
Date: 2011-0702

Uploaded by pirl

Location: Harper post, full sun
Date: 2013-0623
In full bloom after having been cut back hard a few weeks previou

Uploaded by pirl

Location: Manitoba, Canada
Date: 2017-07-04

Uploaded by FirmlyPlanted

Uploaded by Zencat

Uploaded by Paul2032

Location: Grapevine, Texas USA
Date: April 2021

Uploaded by LindsayG

Location: Greenwood, MN
Date: 2014-07-16

Uploaded by capenancy

Location: My Gardens
Date: June 19, 2013
Growing On Wire Fence

Uploaded by TBGDN

Uploaded by Natalie

Uploaded by Natalie

Uploaded by skopjecollection

Uploaded by MaryDurtschi

Location: Brownstown Pennsylvania
Date: 2016-06-18

Uploaded by nativeplantlover

Location: Smithfield, KY
Date: 2008-06-13
jackmanii with zephirine drouhin rose

Uploaded by Anndixon

Location: Bordines Nursery, Rochester Hills, MI
Date: 2010-06-07

Uploaded by DaylilySLP

Location: Oxfordshire, England
Date: 2016-07-14

Uploaded by cliftoncat

Uploaded by Calif_Sue

Location: Backing up to 3 of the compost piles.
Date: 2013-0713

Uploaded by pirl

Location: Harper post, full sun
Date: 2013-0529
I did mention it loves to invade the lantern, right?

Uploaded by pirl

Uploaded by Zencat

Uploaded by admin

Uploaded by ARUBA1334

Uploaded by Calif_Sue

Uploaded by SoCalGardenNut

Location: Denton, Texas
Date: 2019-07-06
Clematis Jackmanii

Uploaded by JoelLin001

Location: Silver Spring, MD
Date: 2014-06-16

Uploaded by Catmint20906

Uploaded by bpsgarden

Location: Our former home
Date: 2020-08-20
This clematis was always a prolific bloomer.It is a Jackamani

Uploaded by anniebear198

Location: Lucketts, Loudoun County, Virginia
Date: 6/23/2010

Uploaded by greenthumb99

Location: Our previous home
Date: Thinking around the first part of May.Sorry not too sure
I loved this Jackamani, it never disappointed .It would grow past

Uploaded by anniebear198

Uploaded by treehugger

Location: Brownstown Pennsylvania
Date: 2016-06-19

Uploaded by nativeplantlover

Uploaded by Lucichar

Location: West Valley City, UT
Date: 2017-06-05

Uploaded by Zencat

Uploaded by DaylilySLP

Uploaded by DaylilySLP

Uploaded by smiley

Location: Whidbey Island in Puget Sound, WA
Date: 13 July 2013
Great climber for pergola... Twists on self on its own. Performs

Uploaded by Burnie1948

I believe this is one of the oldest cultivars grown. I am particu

Uploaded by beckygardener

Location: Backing up to 3 of the compost piles.
Date: 2006-0525
It was cut back to the ground in April and here you can see how m

Uploaded by pirl

Location: Backing up to 3 of the compost piles.
Date: 2006-0412
It's obviously time to cut it back...about two months late.

Uploaded by pirl

Uploaded by Zencat

Uploaded by Zencat

Location: Harper post, full sun
Date: 2013-0513
As it was preparing to invade the lantern, which is does too ofte

Uploaded by pirl

Uploaded by Calif_Sue

Location: central Illinois
Date: 2014-08-16

Uploaded by jmorth

Uploaded by piksihk

Uploaded by Paul2032

Uploaded by Paul2032

Uploaded by Paul2032

Uploaded by Joy

Uploaded by Joy

Location: Our previous home
Date: 2020-09-11
Another Clematis Jackamani .Sadly when we moved to our farm the

Uploaded by anniebear198

Location: central Illinois
Date: 2015-10-13

Uploaded by jmorth

Location: Grapevine, Texas USA
Date: March 28, 2020
Planted Spring 2019

Uploaded by LindsayG

Location: West Valley City, UT
Date: 2017-06-22

Uploaded by Zencat

Photo Courtesy of Homestead Farms Nursery. Used with Permission.

Uploaded by Joy

Location: Gulf-coast Texas
Date: 2014-07-07
Growing in my roses and echinacea

Uploaded by value4dollars

Location: central Illinois
Date: 2015-06-12

Uploaded by jmorth

Uploaded by jmorth

Uploaded by jmorth

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This plant is tagged in:

Comments:

Posted by goldfinch4 (Ripon, Wisconsin) on Dec 19, 2011 3:23 AM concerning plant:

Jackmanii was the first of the modern hybrid large-flowered clematis to be grown in gardens and it continues to be very popular today. Many sources list it as hardy to zone 4, but in a more protected location it has been known to be hardy to zone 3. Since it gets so large, a sturdy support or trellis will be needed. It will tolerate being planted close to black walnut trees. Does not do well in heavy clay soils.

Reply to this comment
Posted by Mindy03 (Delta KY) on May 9, 2012 3:20 PM concerning plant:

Honey bees get white or cream pollen from this plant.

Reply to this comment

Plant Events from our members
piksihk	On April 4, 2024	Bloomed Supbra that is on right side trelllis is blooming! Most blooms ever.
piksihk	On September 30, 2023	Bloomed
piksihk	On May 1, 2022	Bloomed
piksihk	On August 12, 2021	Bloomed Both in ground and pot; One in pot transplanted 3/2024 to right side of trellis 4/1/2024 many blooms
piksihk	On April 16, 2021	Bloomed Back fence
piksihk	On April 16, 2020	Bloomed In ground finishing blooming - one in pot have few blooms
piksihk	On April 19, 2019	Bloomed HW back fence
piksihk	On April 11, 2016	Bloomed
LlamaLlori	On May 29, 2015	Bloomed Is beginning to bloom, 'tan bella'
Catmint20906	On May 28, 2015	Bloomed
Richardis70	On January 29, 2016	Obtained plant Set in hot bed.
FirmlyPlanted	On July 4, 2017	Bloomed
FirmlyPlanted	On May 14, 2012	Obtained plant
aspenhill	On April 11, 2018	Obtained plant Black Creek Greenhouse - qty 3
carlysuko	On March 6, 2022	Obtained plant Bought one of those bare root packages from Lowes. We shall see if it makes it. Definitely an impulse buy.
MissMew	On July 13, 1993	Obtained plant
dnrevel	On April 4, 2024	Plant emerged Growing well again in 2024, sending up healthy green shoots. Will add compost and leaf mulch to nurture it.

» Post your own event for this plant

Discussion Threads about this plant

Thread Title	Last Reply	Replies
Apology;This is a Jackamani clematis. by anniebear198	Jan 13, 2025 1:52 PM	1

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Clematis Clematis 'Jackmanii'

Clematis

Clematis 'Jackmanii'