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Clematis '' Happy Diana ''


Japanese Clematis ' Happy Diana' is deep pink, tulip-shaped. Bloom profusely throughout summer. 


This Clematis was selected and brought to market for its rosy tones and appealing form. It's a beautiful variety that's only newly available to the USA, and its performance in the home garden is impressive. The flowers are unique—large for its type and tulip shaped, with a shorter, thicker bell. It looks like a bountiful feast of flowers in the landscape. It's a large plant for vertical interest in the middle of a border—and how lovely would it be to see these beautiful blooms above your flower bed? 



Wonderful choice for cut flowers , with very long vase life. Up to 14 days.


Plant life cycle: Perennial

Site: Full sun/Partial shade

Sowing: Surface, do not cover

Height: 9 feet

Spread : 36-48"

Hardiness Zone: 4-9

Plant spacing: 18-24 "

Approx Seeds per packet: 10


How to grow:


How to grow

How To Grow Clematis From Seed: Before sowing Clematis seed, refrigerate the seed for 2 - 3 weeks. Some gardeners prefer to start the flower seed outdoors in the late fall or in the winter in a cold frame. The cold helps to break the dormancy.

Clematis flower seed takes about 21 - 28 days to germinate. You can sow the flower seeds in trays indoors and transplant the seedlings after frost season, or sow the flower seeds directly outside after danger of frost has passed.


Temperature: 68F

Average Germ Time: 21 - 28 days

Light Required: Yes

Depth: Do not cover

Moisture: Keep moist until germination


  • Pruning:In our EZ Pruning Guide, this variety is in the GREEN pruning category. These Clematis bloom on new vines that emerge from the ground each year or stems from near the bottom of older vines. Prune hard in the spring and as often as you like to encourage reblooming and keep the plant as tidy as you like
  • Soil Requirement:Well-drained soil. pH 6.5 - 7.5

Additional Information:Nice addition to a late season bouquet of chrysanthemums, asters or alstroemeria.


Flowering Date:Late spring through fall

  • Winter Care: Mulch is advisable in colder areas.

Japanese Clematis 'Happy Diana '

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