Clematis, Tangutica, Late Small-flowered Clematis 'Sun Star'

Clematis

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Sun Star
Additional cultivar information:(aka Sunstar)
» View all varieties of Clematis

Group:

Late Mixed

Height:

4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)

Spacing:

36-48 in. (90-120 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)

Bloom Color:

Pale Yellow

Flower Fragrance:

Unknown - Tell us

Bloom Shape:

Single

Bell

Nodding

Bloom Diameter:

Unknown - Tell us

Bloom Time:

Mid Summer

Late Summer/Early Fall

Sun Exposure:

Sun to Partial Shade

Other details:

May be a noxious weed or invasive

Danger:

Unknown - Tell us

Pruning Groups:

Group 2 - Repeat bloomers; prune immediately after flowering

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

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

Direct sow as soon as the ground can be worked

From seed; sow indoors before last frost

From seed; direct sow after last frost

By simple layering

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

Seed Collecting:

Bag seedheads to capture ripening seed

Allow seedheads to dry on plants; remove and collect seeds

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

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

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Regional

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

Minneapolis, Minnesota

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Apr 6, 2017, DaylilySLP from Dearborn Heights, MI (Zone 6a) wrote:

From Clematis on the Web:
Tangutica group
Offered free by Unwin's Seeds in the UK with the BBC 'Gardeners' World' magazine in 2001. According to the International Clematis Register and Checklist "about 1989, Unwins Seeds in the UK began to offer Sun Star Sun Star is a seed line from 'Helios' and the seedlings cannot be considered to be identical to 'Helios' Nor can it be considered to be a cultivar name;... [it] has no standing."

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