Clematis, Late Small-flowered, Tangutica Clematis 'Radar Love'

Clematis tangutica

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Species: tangutica (tan-GOO-tik-uh) (Info)
Cultivar: Radar Love
Synonym:Clematis tangutica
» View all varieties of Clematis


Late Mixed


6-8 ft. (1.8-2.4 m)


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)

Bloom Color:

Bright Yellow

Flower Fragrance:

No fragrance

Bloom Shape:




Bloom Diameter:

Small - less than 2 inches (5 cm)

Bloom Time:

Mid Summer

Late Summer/Early Fall

Sun Exposure:

Full Sun

Sun to Partial Shade

Other details:

Unknown - Tell us


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:


Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

From seed; sow indoors before last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Grow outdoors year-round in hardiness zone


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

Anchorage, Alaska

Champaign, Illinois

Shawnee Mission, Kansas

Helena, Montana

Pequannock, New Jersey

Averill Park, New York

Big Flats, New York

Durham, North Carolina

Moyock, North Carolina

Dundee, Ohio


Port Matilda, Pennsylvania

Tionesta, Pennsylvania

South Hero, Vermont

Port Orchard, Washington

New Lisbon, Wisconsin

Porterfield, Wisconsin

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Gardeners' Notes:


On Oct 10, 2016, Village_idiot from Alberta, AB (Zone 3a) wrote:

Although I've never actually grown this Clematis in my own garden I have seen them growing wild in some of the old industrial areas of the City of Calgary (zone 3a).
They were growing up 6' chain link fences out in the open exposed to the worst weather. Wind, snow, very high temperatures and drought. They grow in compacted clay surrounded by gravel. Nothing seems to bother them once they're established. (and they do self-seed so watch out for that)
It is an attractive flower and seed-head, but the problem I have is that I associate them with where I've seen them and thus cannot bring myself to plant one in my garden.
But, all in all, if you're looking for a climber that'll survive just about anything this is the plant for you.


On Mar 7, 2016, coriaceous from ROSLINDALE, MA wrote:

Like other species and small-flowered hybrids, this is fairly resistant to clematis wilt. Also, like other clematis, looks untidy in the winter.


On Jul 11, 2013, AmyInNH from Brookline, NH wrote:

I've pined away for this clematis for years and finally found it in my local garden center. Something has eaten each and every leaf off of it. It's attempting to releaf but don't know if it will recover.


On May 17, 2012, metopa from Port Matilda, PA (Zone 6a) wrote:

This is probably a plant like many I have planted. The saying goes: 'First they sleep, then they creep, then they leap" By the third year, most of the time, the plant reaches full maturity and behaves and looks like the pictures! Have patience!


On Jan 27, 2012, smwgarden from Shawnee Mission, KS (Zone 5b) wrote:

So far my experience is negative. In May of 2010 I bought this plant from a high quality nursery and it was covered in beautiful yellow blooms. In Summer 2011 it grew like crazy but never bloomed. We'll see what happens in 2012.


On Aug 30, 2010, KariGrows from New Lisbon, WI (Zone 4b) wrote:

I am in zone 4B also, and planted this clematis on a south facing trellis... and like negative response , had just a few blossoms, and a tangle of leafy growth... so in this , its 3rd year I was thinking of replacing it, and voila..... it is covered with buds! I cant wait until it blooms. Perhaps it just takes a while to get going. The only thing I did different this year was to give it 1/4 cup of clematis starter in the spring.
Patience, have patience ....


On Nov 5, 2007, Torontonian from Toronto,
Canada wrote:

This plant is rare to get in Toronto which is too bad because it has been doing so well in my backyard! I have found it very easy to grow! I also love it because it is a late bloomer. It's been admired by many visitors and everybody would like to have it.


On Jul 11, 2007, peachmcd from Durham, NC wrote:

Got the seeds from Park's, and they germinated well. Set it out last spring, and watched it do not much the whole summer. Good on you folks who got flowers first year from seed! Forums I've read suggested that what I got was pretty normal while seedling clematis gets established, and the next year would be better.

So far in year 2 (July 11) it's growing nicely up the trellis (at about 30" now) with nice-looking, bright mid-green foliage, but no flowers yet. Hopeful to see some this summer, and expecting that the third year will be the charm for vigorous vine with lots of little yellow bells.

I may be back later to change my rating to positive, since I do like having this clematis, and I'm happy I was able to grow it from seed; but for all those folks who are... read more


On May 11, 2007, Rain1950 from (Zone 8a) wrote:

A very easy clem to start from seed; will bloom the first year. A wonderful yellow clem. Seedheads make a wonderful display. Does require a bit more assistance to behave, but the color and form is worth the effort. Young plants were kept in hanging basket last year, which went thru 18F freeze and came back strong even before the last frost; no damage from late frosts.


On May 22, 2006, greenobsessed from Champaign, IL (Zone 5a) wrote:

i bought it potted , planted it, it grew like weed and never really bloomed all summer . a bloom here and there, very inconspicuous i na big snarl of looked like a big mess so i removed in 4b