Vernonia crinita Mammuth - Ironweed
Vernonia crinita Mammuth - Ironweed
Vernonia crinita Mammuth - Ironweed
Vernonia crinita Mammuth - Ironweed
Vernonia crinita Mammuth
Arkansas Ironweed
Planted by the book, I didn't get any results. I'm waiting for spring to see if the plant regrows.
Andrian, 02/03/2024
Back-to-school special offer!
Get €10 off for every €50 you spend! And get up to €40 off on a single order.
How does it work?
1. Shop your favourites
Add your favourite plants to your basket. For every €50 you spend (excluding delivery charges, store credit and the plastic-free option), you’ll receive a €10 voucher.
€50 spent = €10 voucher
€100 spent = €20 voucher
€150 spent = €30 voucher
€200 spent = €40 voucher
2. Place your order
Once your basket reaches one of the spending thresholds, place your order. You can even choose your delivery date!
3. Receive your voucher
As soon as your order has been shipped, you’ll receive an email containing your personal voucher code and its value.
4. Use it on your next order
Your voucher is valid for 90 days from the date you receive it. It can be used once only, on a new order worth at least the value of the voucher, excluding delivery charges.
Please note: Vouchers can be combined with other offers, but cannot be split or refunded.
Home or relay delivery (depending on size and destination)
Important: You may be charged customs duties by your country’s customs authorities upon delivery.
Schedule delivery date,
and select date in basket
This plant carries a 12 months recovery warranty
More information
We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
Would this plant suit my garden?
Set up your Plantfit profile →
Description
Vernonia crinita 'Mammuth' is a very tall perennial related to asters and resembling eupatoriums. It forms a large clump adorned in late summer with numerous compound, violet mauve and slightly crumpled flowers. Withstanding harsh winters and scorching summers without weakening, it will grow in all types of soil as long as they are not too dry. Still relatively uncommon in Europe, this sturdy American plant explodes in a fireworks display when in bloom. It will fit well in informal, somewhat wild gardens, where its robustness makes a difference. It is an ideal plant to bring height to the back of a border, or near water features.
Vernonia crinita 'Mammuth' belongs to the asteraceae family. It is a herbaceous perennial with a woody base that reaches 1.70 m (6ft) high and spreads 50 cm (20in) across. Its growth is quite rapid, but it takes two years to establish. It forms a clump of large and robust, straight and sparsely branched stems, bearing alternate, simple, lance-shaped, dark green leaves. From July-August to September-October, it has violet-mauve flowers, resembling fluffy little pompoms, which turn rusty as they age, in broader terminal corymbs than the species, at the end of the stems. The long-lasting flowers all open at the same time and attract a large number of butterflies, creating a magnificent spectacle.
This highly hardy vernonia is easy to grow and pairs well with a multitude of plants to create magnificent autumn compositions, especially on the banks of a pond. Plant it alongside similar-looking eupatoriums, Lythrum salicaria, Filipendula rubra 'Venusta', and Euphorbia palustris, for example. In a wilder style, at the back of a border, this imposing perennial forms a very successful combination with tall grasses: Miscanthus, Panicum, Stipa...
Vernonia crinita Mammuth - Ironweed in pictures
Flowering
Foliage
Plant habit
Botanical data
Vernonia
crinita
Mammuth
Asteraceae
Arkansas Ironweed
Cultivar or hybrid
Planting and care
Vernonia crinita 'Mammuth' is an excellent perennial plant that deserves to be better known. It thrives in sunny locations and prefers moist, rich, and deep soils, even clay as long as they are not waterlogged. Incorporate leaf compost and coarse sand when planting in heavy soil. The clumps can be divided in spring or autumn if they become too large. Cut back the dried vegetation at the end of flowering.
Planting period
Intended location
Care
Planting & care advice
-
-
-
-
-
-
-
-
-
, onOrder confirmed
Reply from on Promesse de fleurs
Recently viewed products
Haven't found what you were looking for?
Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
Shipping country and language
Your country of residence may be:
Your country of residence is:
For a better user experience on our website, you can select:
Your shipping country:
-
Austria
-
Belgium
-
Bosnia & Herzegovina
-
Bulgaria
-
Croatia
-
Cyprus
-
Czechia
-
Denmark
-
Estonia
-
Finland
-
France
-
Germany
-
Greece
-
Hungary
-
Iceland
-
Ireland
-
Italy
-
Latvia
-
Liechtenstein
-
Lithuania
-
Luxembourg
-
Malta
-
Netherlands
-
Poland
-
Portugal
-
Romania
-
Serbia
-
Slovakia
-
Slovenia
-
Spain
-
Sweden
-
Switzerland
Language:
-
French
-
English
-
Spanish
-
Italian
-
German
-
Portuguese
-
Dutch
-
Finnish
My Account
Hello
My wish lists
My cart
Log in / Register
Existing customer?
This form is protected by reCAPTCHA - the Google Privacy Policy and Terms of Service apply.
New customer?
Create an account to track your orders, access our customer service and, if you wish, make the most of our upcoming offers.