Dahlia 'Gelber Vulcan'
Cheerful yellow cactus-style blooms
Grown by Jack
Hereford
Perfectly happy plants, or your money back
Specialist overnight plant delivery
The highlights
- Loves a spot in full sun
- Showcase in borders and large pots
- Flowers profusely from July to October
- Cut and display these gorgeous blooms in your home
Description
A classic dahlia with large, semi-double flowers in a bright yellow colour. The petals are smooth and rounded, creating a beautiful and elegant bloom. Blooms from June to September. Ideal for borders, containers, or cut flowers. Thrives in full sun and well-drained soil.
See how our premium 3L pots compare to 1L:
What To Expect
Supplied as:
Height on arrival:
Eventual height:
Eventual spread:
Time to first crop:
Flower colour:
Rootstock:
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How To Grow
Planting Calendar
- Best time to plant
- Harvest
- Flower
Hereford
Meet Jack
Perennials born in Herefordshire, blooming in your garden
Our perennials start life in the rolling Herefordshire hills, where Jack and his team trial over 250 new varieties each year to bring you the best performing and most sustainable plants in the UK. With over forty years of excellence, it’s no surprise that they’ve won the HTA Plant Grower of the Year award two years running.
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.
Grow like a pro
Top 4 dahlias for British gardens
Jenny Winnard, a dahlia expert, takes us through her top 4 examples of these show-stopping blooms. She also shares some tips and tricks to help you on your dahlia-growing journey.
Which size is best?
3L vs 1L perennials
Join Roots founder Alex at our perennial nursery to see the difference between 1L and 3L plants, so you can decide which is best for your garden.
Explore our nursery
How we grow bedding plants
Visit our nursery in Hereford to see how the team tend to your plants and have devised groundbreaking packaging to keep your plants safe on their journey to your garden.
Learn from our experts
10 Best Flowers to Grow for Cutting
Digging deep to answer your questions
How do I know I'm getting quality plants?
All of our plants are grown in specialist nurseries with the highest standards of plant care and sustainability. We guarantee you'll love them as much as we do! Don't just take our word for it - we've got thousands of great reviews on Trustpilot.
When will I get my plants?
The delivery timescale for each plant is on the web page (near the 'add to basket's button). You'll receive a dispatch email with an exact delivery date once your plants are on their way, so you can get the garden ready.
How will my plants be packed and delivered?
We send all of our orders through a courier network designed to handle plants. Specialist equipment ensures that no plants will be damaged during the packing process and every order is carefully finished and checked by plant-loving humans. Your plants will arrive in the most sustainable packaging possible with minimal to no plastic used.
Where do you deliver?
We deliver to anywhere in Mainland UK for our standard delivery cost. We are able to deliver most plants to Highlands and non UK mainland however this will be at an additional cost. This will be calculated at the checkout. Please note, deliveries to these locations will take longer. Unfortunately, we are not able to deliver to Northern Ireland at present.
Ask the grower
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.
Peter Mawer
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!
John Harris
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.
Karen McEwan
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.
Martin C Simmons
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.
Sara Bradley
Marvelous!
Marvelous service, great plants and fast delivery. Very useful information on how to care for the plants I bought. Easy to use website that makes it far too easy to overindulge in fabulous plants😂🌱
Cheryl Mae Owen