Clematis 'Diamantina'
Amethyst purple pom-poms
Grown by Mollie
Cheltenham
2 options
In stock
Order before 11pm for delivery within 4 working days
Order before 11pm for delivery within 4 working days
Perfectly happy plants, or your money back
Specialist overnight plant delivery
The highlights
- Fully double flowers up to 15cm across
- Pruning group 2 - light pruning
- Full sun to partial shade, fully hardy (H6)
- Flowers May to September
Description
- Amethyst pom-pom shaped flowers
- Double blooms up to 15 cm diameter
- Suitable for containers
- Vigorous bushy climber
- Long flowering season
- Please Note: Our climbers are pruned back each winter, and some during the summer, so you may find at certain times of year they do not cover the whole 90cm cane. This is intentional to ensure the best growth when you plant out
What to expect
What to expect
Supplied as
Height on arrival
Eventual height
Eventual spread
Flower colour
Habit
Hardiness
Spacing
How to grow
How to grow
Good pest and disease resistance
Good pest and disease resistance. Any appearance of aphids or capsid bugs can be dealt with by wiping them away from the leaves. Use fertiliser to protect against Clematis Wilt.MORE
Keep moist and water during dry spells
Water frequently while the plant is getting established, and always keep moist.
Full Sun/Partial Shade
Clematis will flourish in partial shade but prefers full sun.
Chalk/Clay/Loam/Sand
Clematis will thrive in most soil types as long as they are kept moist and well drained.
Feed in Spring
Feed at least annually and up to 2-3 times a year with potassium rich fertiliser or rose fertilisert to encourage flower growth.
Planting calendar
Planting calendar
- Best time to plant
- Harvest
- Flower
Choose your size
Cheltenham
Meet Mollie
Climbers grown by specialists at the height of their game
What does it take to grow the strongest and best climbing plants in the show tent? Organic fertilisers, natural pest control and years of dedication from Mollie, our expert grower in Worcestershire. Professionally pruned and checked by hand, they’re guaranteed to put on a gold standard display in your garden, too.
What customers say about us
We do our best to provide you the best experience ever
Growing with Roots
Good to know
Our plants are grown 
in the UK
Specialist UK growers we know and trust grow your plants the traditional way, with organic fertiliser and biological pest control. They pick only the healthiest plants for you, professionally pruning them so that they’ll grow strong and well shaped.
Our plants are delivered overnight
Your plants are sent to you fresh from the field in our plastic free box that’s specially designed to hold them tight, then securely delivered by specialist plant couriers - straight from the grower to your garden within 
24 hours.
We're here to help at every step
We want your plants to have a long and healthy life. Expect easy-to-follow grow guides and videos devised by our team 
of experts.
Perfect plants, guaranteed
We’re confident that you’ll be delighted 
with your new plants. Need help? Alice and her team are here to guarantee you’re 
perfectly happy.
Learn from our experts
For growing advice that's clear and easy to follow
The Five Best Climbing Fruit Plants
Check out our five favourite fruiting climbers - all of them are perfect for a greenhouse or conservatory, and some of them can be grown outdoors on a pergola, trellis or wall.
Read more
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One of our trusted team will get back to you via email
What customers say about us
We do our best to provide you the best experience ever
Best plants you will ever get online
I have ordered plants from them twice this year. They arrived well packaged, on time and looked strong and healthy. I feel the staff from Roots plants deal with their plants and customers with passion and care. I can’t wait to order again, price is good as well.
Highly recommended all round
Delivered quickly, perfectly packaged and the tree was in excellent condition. Really healthy and taken to the garden with no problems. Can't recommend highly enough. 5 stars isn't enough!
Satisfied customer
Unlike other online sellers, this company are well ahead in the quality stakes. My plant arrived promptly as per their promise and the plant was much more established and healthy than I had expected. It’s the second time I have ordered from them and I have faith in their promise. Excellent service.
A really good quality tree
A really good quality tree, delivered on time and very well packaged. But the emailed planting advice and supporting information was what really impressed me. Thoroughly recommended.
Exceptional quality
The quality of the plants was exceptional, unlike ones I have had before from local garden centres. Thank you so much. I will definitely be using you again.
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