Flower Library
Plume Thistle
Cirsium · Asteraceae
Cirsium, the plume thistle, is one of the most charming wild thistles in the range: small, fluffy flower heads in strong carmine to crimson red on branching, finely spined stems. Unlike eryngium it does not look metallic but soft and meadow-like. We buy our cirsium fresh at the Veiling Rhein-Maas during the summer season — with heads only just opening, it lasts noticeably longer.
- Season
- June – July – August – September
- Vase life
- 7–12 days
- Latin name
- Cirsium
- Colors
- Carmine red, Crimson purple, Deep violet
In the trade the plume thistle mostly appears under variety names of the Cirsium japonicum series, above all „Early Pink Beauty“ and the deep red „Early Red Frosted“. The heads are around two to three centimetres across, sit in groups on a branching stem and feel like tiny shaving brushes — soft on top, well defended along the foliage.
In floristry cirsium is a classic natural-look ingredient. It brings meadow character to hand-tied bouquets, sets small, concentrated dots of colour and combines beautifully with grasses, yarrow and other umbellifer-style flowers. In compact, rounded bouquets it quickly looks out of place — it wants to be worked loosely and lightly.
A common mistake is putting the stems in the vase with all their foliage. The finely spined thistle leaves wilt before the flowers do, draw water away from the stem and cloud the vase water. When conditioning we consistently strip every leaf below the branching — the heads reward it with several extra days of life.
Fresh stock shows firm, intensely coloured heads that are not yet shedding, and upright green foliage. Once the blooms fade to a cotton-like fluff and show seed down, the thistle has reached the end of its vase life — although it still cuts a fine figure in a dried arrangement for a while.
In terms of colour the strong red is a grateful partner: it deepens summery meadow bouquets with white and yellow, harmonises with pink and apricot, and sets a warm counterpoint next to blue thistles such as echinops or eryngium. In boho-style wedding floristry in particular, cirsium is a welcome guest.
Is Plume Thistle toxic to children and pets?
- Children
- Non-toxic
- Cats
- Non-toxic
- Dogs
- Non-toxic
Cirsium is considered non-toxic to cats, dogs and children. The fine spines on the foliage can, however, mechanically irritate skin and mucous membranes — so handle the stems out of reach of small children.
Overview: toxic & non-toxic plants for cats, dogs and children
Care
- 01Recut the stems at an angle and place them straight into cool, clean water.
- 02Strip all foliage below the branching — it wilts first and spoils the water.
- 03Feel free to wear thin gloves when conditioning, the fine spines do prick.
- 04Change the water every two days and use flower food.
- 05Keep cool and out of direct sun, and not right next to the fruit bowl.
- 06Pluck out faded, fluffy heads — the side buds will follow on.
Frequently asked
- How long does cirsium last in the vase?
- Recut properly and with no foliage in the water, the plume thistle lasts around seven to twelve days. The key is that the heads are still firm and velvety at purchase and not yet showing seed down.
- Is the plume thistle toxic to cats or dogs?
- No, cirsium is considered non-toxic to cats, dogs and people. The only caution concerns the fine spines on the foliage, which can irritate muzzle or paws — so pets should still be kept from nibbling.
- When is cirsium in season?
- The main plume thistle season runs from June to September. During that window it arrives reliably from Dutch growers via the auction; outside the summer it is only sporadically available.
- Can you dry cirsium?
- Yes, with some caveats. Air-dried upside down the heads keep their shape but lose part of their colour intensity and tend to shed later on. That is fine for short-lived dried work; for permanent dried bouquets, strawflowers or globe amaranth are the better choice.