Clematis Jackmanii Superba
Clematis Jackmanii Superba
Clematis Jackmanii Superba

Clematis Jackmanii Superba

Regular price$14.99 CAD
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  • Shipping Starts in Late March 2026
  • Well Rooted Starter Plants
  • Canada-Wide Shipping

Jackman Superba

Similar to the more popular Jackmanii, but with a smaller flower, improved branching and excellent disease resistance. 4-6" (10-14cm) flowers from mid June through September. Mature height 12-20' (3.5-6m). Pruning group C.

Vines are shipped and sold as well-rooted starter plants

Flower Color Purple
Flower Size
4-6" (10-15cm)
Flowering Period June - September
Mature Height 12-20' (3.5-6m)
Planting Aspect
Sun/ Partial Sun/ Bright Shade
Foliage Deciduous
USDA Zone 3

At Wildwood, we aim to make sure every plant arrives healthy and safe to your door in time for your planting period. The shipment of your order will follow our approximate schedule found below where timing will be dependent on what is being shipped, your planting zone, and the current weather conditions for shipping.

 Zone Earliest Shipping Time
1-3 Mid May
4-5 Late April
6 Early to Mid April
7-9 Late March

All times listed are the earliest dates shipping can start in that zone. Shipping times can change due to harsh weather conditions or supplier delays if they occur.

Not sure what planting zone you are? Check the map here or visit Natural Resources Canada to find the hardiness zone in your Municipality.

When to Plant

Clematis can be planted as soon as the ground is workable. Like bulbs, clematis will react to the seasons with root growth in the summer and fall and top growth in the spring.

How to Plant

Plant in an area with sufficient light and a well drained soil mix. We recommend digging a 18" by 18" (45cm x 45cm x  45cm) hole and covering the bottom with a mix of rich compost and bone meal. Cover the compost mix with top soil before planting in the hole. Your watered clematis should be planted so that there is 6" (15cm) of stem below the final soil level. The stem should be ripe before burying it so if there is any uncertainty of this, leave the final fill until later in the season. 

Planting in Containers

Most varieties will do well in containers but plant growth and size will depend on the size of the container used and frequency of watering. It is important to include some sort of trellis, sweet pea netting, or cedar stakes to be used as a support system. When planting Clematis in containers, make sure to use something with several drainage holes in the bottom.

Clematis have three main pruning groups that we have simplified as A, B, and C. These groups are based on where the Clematis grows its new flowers. Follow our quick guide below to see when and where you should be pruning your established Clematis vines after their flowering season.

 Group A B (1 & 2) C
Flower Time Spring

Early Summer and Repeat Blooms

B1 (Heavy blooms on old growth in May - June followed by a smaller flush on new growth in September)

B2 (Blooms simultaneously on old and new growth from June to September)

Late Summer
Flowers on Old wood Old & new wood New wood
When to Prune After flowering (Summer) After flowering (Fall / Winter) After flowering (Winter / Spring)
Where to Prune Cut out weak or dead stems. Light pruning with variation in length in late Feb. or March. Remove weak or dead wood. Cut back to two strong sets of buds as close to soil level as possible.

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Overall rating: 3.8 / 5 from 5 reviews.

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Reviews

Hardy Jackmannii Clematis

"I ordered late into planting season and received a small plug, which I planted and now water daily and it is slowly growing. Considering it was late into the ground during the hot season, I think it's doing exceptional. But, that's why I ordered this particular clematis -- I can't find it in stores and it's the only one I've ever had success with. I'm excited to see what it will do next year."

Tammy N. (5/5)

Jackmanii Superba

"I was surprised how small the two plants were when they arrived by mail to my home on Salt Spring Island. One, in particular looked very weak. I planted both immediately but one died within two days. I am hoping that the second one is rooting. I sent you an email to report and ask for a replacement plant but did not receive any response."

Carol T. (2/5)

Clematis

"One is doing beautifully and getting new growth. The other didn't fare well in the trip amd might not grow."

Tara S. (4/5)

Two out of three ain't bad?

"I ordered 3 Jackmanii and two arrived with live shoots and are growing today. The third was planted but did not send up any growth. The order sat in Toronto over a long weekend, which may have been avoidable."

Brad M. (3/5)

"Nice and healthy growing really well."

Sally (5/5)

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