Creeping buttercupCreeping buttercup

Name: Creeping buttercup
( devil )

Latin name: Ranunculus repens L.

Occurrence: A native perennial common in damp meadows, pastures and gardens throughout the UK. It is the commonest of the buttercups and is an efficient colonist of areas disturbed by man and a troublesome weed of arable land. Creeping buttercup occurs on a wide range of soils but forms large colonies on wet, heavy land. On ridge and furrows, it often occurs in a band along the bottom of the furrows. It can withstand trampling and compaction and is common in gateways and on paths. It can tolerate both waterlogging and a moderate drought.

Plant morphology and growth vary with habitat and grazing pressure. A number of varieties have been described that differ in growth habit and flower colour. Stolon formation is linked with soil fertility and vegetation cover. Clones vary in leaf number and this determines the number of primary stolons that are produced. Some plants spread widely others remain relatively compact,

Although it is usually avoided by stock creeping buttercup is more palatable than the other buttercups and may be grazed. However, it can cause diarrhoea in sheep and cattle. Creeping buttercup is said to deplete the land of potassium and may have an allelopathic effect on neighbouring plants.


Biology: Creeping buttercup flowers from May to August. Sometimes the plants do not flower in the first year or flowering is delayed until later in the year, up to October. The flowers are insect pollinated, some selfing occurs but cross-pollination predominates. Not all plants flower and those that do so may have only a few flowers each producing 20-30 seeds. A flowering shoot may yield 140 seeds and the average seed number per plant is 687. Plants from ruderal habitats tend to flower more freely perhaps because seed production is more beneficial in a disturbed situation.

Ripe seeds are highly dormant and may need a period of after-ripening. Seedling emergence can occur sporadically throughout the year but the main periods are from February to June and August to October. Most seedlings emerge from 5 to 30 mm deep in soil. Adequate soil moisture is important for germination and early growth. Seedlings rarely develop in established vegetation but on open and disturbed land they often occur in patches or clumps. The seedlings are unaffected by frost.

Creeping buttercup is a very variable plant. It has a short swollen stem base, long stout adventitious roots and strong leafy, epigeal stolons that root at the nodes. The stolons begin to develop around the time of flowering. In open and fertile sites, the stolons are long and well branched to ensure rapid colonisation. In close turf the stolons are few. It normally has a creeping habit under intense grazing or mowing but makes erect growth in taller vegetation. In dry conditions creeping buttercup flowers and sets seeds, in wet conditions it tends to increase by runners.

Daughter plants form in the axils of the stolon leaves. The stolon internodes wither and rot away leaving the daughter plants as independent units. The parent plant dies after seed ripening and the daughters overwinter as leaf rosettes. In spring new leaves develop and later, just prior to flowering , buds low down on the rosette grow out into stolons that root at the nodes and produce a new crop of daughter plants. Stolon production continues into the late summer.


Creeping buttercupPersistence and Spread: Seed longevity in soil is said to be 5 to 7 years but seed recovered from excavations and dated at 80 years old is reported to have germinated. Seed buried in undisturbed mineral soil at various depths retained around 50% viability after 20 years. Seed dormancy enforced by soil burial leads to a high population of creeping buttercup seeds in the soil seedbank. Up to 12,000 seeds per m² to 15 cm depth have been recorded. There is considerable persistence of creeping buttercup seed in the soil under grassland. It made up 36% of the seedbank when pasture was ploughed after 22 years. The annual decay rate of seed in soil has been measured at 38%. Seeds survived 3 years in dry storage. Viability was 18% after 1 year under granary conditions.

Most seeds fall around the parent plant but birds eat some of them. Seedlings have been raised from the excreta of various birds including the house sparrow. Seeds have been found in the droppings of cattle and horses. Seeds eaten by earthworms have been recovered from wormcasts. Some rodents carry off and store the seeds. Seeds are also carried in mud on tyres and boots. Creeping buttercup seed has been a contaminant in clover, grass and cereal seeds, particularly home saved seed.

In dry conditions, creeping buttercup sets seeds but in wet conditions it relies on vegetative reproduction for spread and persistence. The stolons grow rapidly when the vegetation cover is opened up by poaching or puddling, by mole activity and wherever the grass has died.


Management: Creeping buttercup is controlled by frequent and vigorous cultivation in hot weather. Plants damaged by a single isolated cultivation can recover. Deep ploughing may kill plants buried below 15 cm but creeping buttercup can survive shallow burial. The destruction of a grass sward, especially in spring, provides ideal conditions for rapid colonisation by creeping buttercup seedlings before a new crop is established. After ploughing it is best to clean up the land with one or more root crops before putting down to grass again.

In grassland, small patches can be removed manually. Meadows should be harrowed in spring to drag out the creeping runners. These should be gathered up to prevent re-rooting. Intense grazing prevents seed set. Mowing may reduce plant density and vigour but grazing does not. In roadside verges, the creeping buttercup population increases with cutting frequency. It is particularly favoured by cutting twice a year.

Creeping buttercup plants are attacked by a number of insects, fungi and grazing animals. Partridges, pheasants and wood pigeons eat the seeds. Chickens and geese readily eat the leaves. Creeping buttercup tolerates rabbit grazing but growth becomes more prostrate.

Updated October 2007.

Further Information / Links:

»UK farmers' case studies

« Back to Perennial Broad-leaved Weeds


Comments

  1. Please can someone help me , with what and when do I spray the fields to get rid of them !!!
    - eve@tingri.freeserve.co.uk 4---0-2006

  2. I am not sure as organic farmers and growers do not use herbicide sprays!
    - Gareth Davies 4---0-2006

  3. Chickens, by the sound of it. :)
    - Melanie 5---0-2006

  4. in the past Englands fields had masses of them... so why now do we want to be rid of them! Buttercups and cows went together.....
    - anita bridle 6---0-2006

  5. Crepping buttercups grow into oher flowers

    - Bob 2---1-2006

  6. Any ideas on how to get rid of creeping buttercup in the flower borders? Animal friendly please!
    - Ruth K 4---0-2007

  7. Let the chickens eat them! Partridges, pheasants and wood pigeons eat the seeds. Chickens and geese readily eat the leaves. Temporarily turn your stock on them, then return the stock to thier coops to avoid reseeding by excreta.
    - Terry C 5---0-2007

  8. 2-4-D works great for spraying buttercups and all broad leaf weeds. The best time to spray is before the plants are mature. And definately before they seed!
    - Tamara Shipley 5---0-2007

  9. we have been told that buttercups can be poisonus to horses, ponies and alpacas, could anyone please tell me if this is true.
    - hellen O'Connor 7---0-2007

  10. desperatre to eradicate the weed as my horses lymph glands swell up in the summer, when surrounded by buttercups. Any suggestion.
    - Nan morrison 9---0-2007

  11. According to our notes above it can cause diarrhoea in sheep and cattle. Follow the links to our fully referenced review above for more information on this plant.
    - Gareth Davies 9---0-2007

  12. I am on clay soil and it is awash with buttercup which is ,in large amounts, poisonous to my horses. I rest the 8 acres of land from november to beginning of may and i do my best to rotate the grasing but this problem has become impossible. I have to work out what is more damaging a weed killer or the buttercup.I want to get the ph right on the land and plan to put good dolomite lime on and seaweed. Anyone got any really helpful suggestion?Also I believe you can put the lime on any time getween autumn and Spring is that correct? What about the seaweed.?
    - christina mirylees 3---0-2008

  13. What is 2-4-d? Tamara shipley sprays the buttercup with that but is that toxic? What is it?
    - Christina 3---0-2008

  14. I have newly seed lawn and now have buttercup in the grass and would like to get rid of it. Can some one help me???
    - Lester Harris 5---0-2008

  15. I have this plant in my boarders, it looks pretty do i need to get rid of it.
    - Amanda Baker 5---0-2008

  16. Animal friendly way to get rid of them... dig them up. Roots are small and fairly shallow. Wait for them to flower so you can see them then go round and pop them out.

    If necessary have a buttercup party where friends and relatives come round and help you dig them up. Then have a BBQ/Picnic to thank them for it.
    - David K 7---0-2008

  17. I would like to get all the buttercups out of my field. I too have horses so I need the land to be clear of them. I would like a suggestion for whatever kills them off apart from reseeeding the field
    - Lorraine Freeman 7---0-2008

  18. Our horses grazing filed is full of buttercups and one of our horses has developed a problem with his breathing could this be related to the buttercups
    - angela blackburn 7---0-2008

  19. does creeping buttercup 'burn' horses' muzzles? trying to find out on behalf of friends. also, if it does burn what causes this effect?
    - clare 7---0-2008

  20. does anyone know whether light has any effect on how big creeping buttercups leaves are? I would really appreciate it if someone could answer me! thanks!
    - jenny 1---1-2008

  21. Our foals look they they have burn around their muzzle and eyes, I think it is buttercup. Is there anything i can put on them?
    - jane 1---1-2008

  22. buttercups give off a gas similar to mustard gas ,this makes some horses muzzles very sore affect thier breathing and can make their eyes sore and weepy,sometimes turning into conjunctivitis.They are not poisonous when dead.
    - beryl 12-06-2009 1---1-2009

  23. I would like to get all the buttercups out of my field. I too have horses so I need the land to be clear of them. I would like a suggestion for whatever kills them off apart from reseeeding the field. I have been told about salt and that if I dig them up they will not regrow from fragments. Is this true? Help please!
    - Amanda Paines 1---1-2009

  24. Buttercups, buttercups, buttercups everywhere!! Not good for horses as they can get a burn like reaction and the leaves are poisonous to horses and cattle, though they do tend to ignore them. We are on an organic farm and have to let nature run its course. Use aloe vera gel as it is effective but "gentle" on noses and muzzles.
    - Exeter 1---1-2009

  25. Thanks for the information. I want to rid my veggie garden of this weed without the use of chemicals. The soil was tilled; I'm raking the soild up into rows and pulling them out easily by hand and leveling it back, catching (hopefully) most of the plants. Tilling the soil made the raking and removal easy, but probably increased the plants. I'll work hard at removing all of this from my gardens. :)
    - Janice 1---1-2009

  26. do not underestimate how dangerous this weed is. It destroys the digestive system in horses and if you have an older horse or one with any kind of autoimmune suppresion this can be fatal.
    - Kauto Star 1---1-2009

  27. do not underestimate how dangerous this weed is. It destroys the digestive system in horses and if you have an older horse or one with any kind of autoimmune suppresion this can be fatal.
    - Kauto Star 1---1-2009

  28. I noticed it in my lawn about 2 years ago. Very small patch about 2'x2'. It has now taken over about 1/3 of my lawn. Is there some way to get rid of it?
    - jckieley@nf.sympatico.ca 1---1-2009

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