ICEBERG – Floribunda rose of purest white, exceedingly healthy and free flowering

Bred by Kordes in 1958 and worthy of the title we use for it: “Rose of the Century” because of it’s extremely healthy and free-flowering, easy care qualities. Inducted to the Rose Hall of Fame in 1983.

Iceberg is planted in gardens throughout Australia and even the most uninformed gardener tends to recognize this rose. Because it is almost thornless, Iceberg lends itself to planting in public spaces and along walk-ways.


The very bushy, compact growth habit makes Iceberg the ideal rose for budding to a standard understock and has been our biggest-selling standard rose for many years. In our harsh Australian landscape, Iceberg offers a cooling effect when you see it planted in a row with a green lawn or hedge around it and flowers unashamedly in all weather and all conditions.

There are many ‘sports’ of the original Iceberg including the Climbing form and all the sports in a variety of colours are just as vigorous and free-flowering as the parent!

  • Extremely hardy and free-flowering
  • Lovely cool pure white
  • Ideal standard rose
  • Almost thornless


The generally sunny, dry and hot conditions of the Australian garden are particularly well suited to planting roses and roses flourish in our gardens when you take measures to provide the following:

WATER – Roses are very deep rooted plants and require one good, deep soaking at least every 10 days in hot and dry conditions.

FEED – Because roses flower throughout all but the Winter season, they should be regularly fertilized with quality (preferably organic) fertilizer which contains a balance of major nutrients (NPK) and trace elements. The fertilizer should be applied at least once a month – small amount often – with fortnightly applications of liquid seaweed over the foliage.

PRUNE – During Winter, 70% of the rose plant should be pruned and all old wood removed back to the crown and the bush pruned to shape.
During the flowering seasons, 25% of all flowering stems should be cut back after flowering to encourage strong re-growth.

MULCH – Particular attention to application of lucerne or pea straw directly around the root-zone of each rose will enhance the overall health of the rose and then the whole bed should be mulched to 75mm with any other mulch medium available.

46 Replies to “ICEBERG – Floribunda rose of purest white, exceedingly healthy and free flowering”

  1. I have 2 standard icebergs that have not been pruned hard enough over the 20 yrs. they have been in.They have heavy old wood and i fear that heavy pruning into old wood will be the end of you have any advice on what to do with them ? many thanks tony.

    1. Hi Tony … you wouldn’t cut all of those thick stems all at the same time however, if you go quietly – like, one or two at a time, you’ll see that new growth will emerge from those canes – then you do another and so on until the bush has ‘reinvented’ itself … be courageous!!! ICEBERG has a tendency to not produce watershoots from the crown but you can cut the thick canes low and you watch it recover … cheers

  2. I am interested to purchase 01 Iceberg rose plant bush and 01 iceberg climbing rose in India.Can any gentleman suggest me about the agency who can supply above roses to India.

    1. Quarantine restrictions make it impossible for us to supply roses outside Australia and I do not know any rose growers in India … maybe try getting them from England. Best wishes – Diana

    1. Can depend on the weather obviously, but normally around 35-40 days from pruning to flowering – especially with ICEBERG and lots of other floribunda/shrub roses. Cheers – Diana

  3. Just bought 2 iceberg flowers and planted them. How do I look after them and what do I need to do to look after them well. How often do I need to water them? Fertilise ? And when to prune? Leave in melbourne

    1. Hello … there are lots of management articles here – you might wish to subscribe to our regular email ROSE RAMBLER for lots of information to assist you to keep your roses in fine condition … best wishes = Diana

  4. I have 62 icebergs they are the most beautiful rose for our Adelaide environment. I have only white, my front garden is just lovely and I don’t mind the pruning.

    I do have one rose that arrived as an iceberg and it is not! But I just could not bring myself to dig it out


    1. That must be an awesome sight – ICEBERG is the rose of the century for those who love to have white roses … enjoy! Diana

  5. Hiya tony, last year i bought an iceburg standard, this year i have lots of white roses and one bright orange one can you tell me how this has /why happened thanks anne

    1. Since ICEBERG has sported other colours, it is possible that you have ORANGE ICEBERG ??? However, I rather think that an extra bud was inserted on the understock stem as a mistake at budding – worth keeping an eye on the rose to see if the same orange rose comes from the same branch and see if it is in fact, a bud on the understock! Interested to know what you find … Diana

  6. I am having difficulty with my iceberg rose. Getting a lot of dead foliage and now it is showing a wet substance on the leaves. Can you help me please.

    1. It’s winter and we expect all roses to lose their leaves now … not sure what the ‘wet substance’ is?? Is it like ‘snail trails’ perhaps? Maybe send a pic to and I’ll take a look … talk soon – Diana

  7. I planted a Monrovia Iceberg Rose from Lowes’ back in late April. Planted in rich soil. It did really well, but seems to have declined over the past few weeks. Some leaves dropped off, and very little blooming. It is in a area were my other rose does well.

    Been using Miracle Grow mix 2x week. I covered it with black dyed hardwood mulch with Preem in it. Maybe the mulch is the problem, maybe it is busy rooting, and can’t grow as well. Not a rose expert.

    Any thoughts? Thank you.


    1. I don’t think MIRACLE GROW should be used twice a week … ??? Check the pack for directions but sounds like over-feeding to me – let the rose settle since I is only recently planted!!! Hope this is helpful. Diana

  8. Hi, I bought 13 bush icebergs for the front of my house, the Gardner I paid to plant them has put them right at the back of the garden bed on the edge of verandah then there is a 1.5m gap to the front where he planted micro box hedge. I’m not a Gardner but I would have planted the rose more towards the middle allowing the bush space. What do you think? I could try re-planting. Thanks!

    1. Replanting them shouldn’t be too much of a job if the ‘gardener’ dug nice big holes – if he didn’t do that, you’ll have to dig! You must dig 75 x 75 cm rough holes, turn the soil well, place a mound of soil in the middle of the hole, place the roots over the mound and back-fill. Deep soak them after planting, pour seaweed solution over them weekly – probably won’t have to water for at least 3-4 weeks with all the wet weather that’s been around! DON’T OVERWATER THEM!!!! If you need more advice, you can email … cheers

  9. Hi,
    All of the best for 2017.
    I have planted 41 standard iceberg roses in a Labyrinth garden at Marlbank Vaalriver , Vanderbijlpark SA. They are looking stunning right now. My daughter wants to get married in that garden on 18th March 2017. When do I cut back or prune to make sure the roses will be in full bloom, and what do I feed them?
    Kind regards,

    1. I am not as familiar with your weather zone as LUDWIG TESCHNER and his staff will be so I suggest you give them a call and ask for their advice. We, here in Australia, recommend pruning 40-45 days prior to an event to be sure the roses are flowering. However, I am also rather conservative and would not do TOTAL PRUNING but rather CONSTANT PRUNING so no matter what the weather might be in the lead-up to the event, you will DEFINITELY have flowers for the event.

      I suggest regular fertilizer applications and most definitely weekly applications of seaweed / fish solution to ensure the plants retain lots of healthy foliage – this in turn will produce masses of blooms.

      Best wishes for a lovely day for the wedding … Diana

  10. Neighbour has three standard white icebergs. The middle one looks dead. Totally browned off. The other roses are healthy and flowering and so is the underplanting. What could have happened please

    1. Probably the most likely reason is something ‘wrong’ in the soil … so, you ask, what is wrong? Well, there could be a well of water lying there, there might be an animal urinating there? Possibly, was the middle rose as robust and healthy as the others when planted? Are there clumps of anaerobic (un-decomposed compost materials) in the soil where this rose was planted? A bit of digging will provide the answer to your dilemma … I’m interested to know which of the above was the issue ????? Diana

  11. I adore icebergs and would like to grow them in large pots on our balcony. They would be in full sun, with exposure to sea air (2 houses back from the beach) and some wind at times.

    Could you please tell me whether icebergs would be suitable in this situation?

    Thank you so much in advance.

    1. If any rose is going to do well, ICEBERG will do it … there are others if you want different colours – happy to recommend. Please use the highest quality potting mix available, water EVERY DAY by filling the tub to the top and put some Lucerne mulch on … Should be lovely! Cheers – Diana

  12. Thanks for the article, a very informative read!
    I’m planning a wedding and would love potted white roses down the aisle. After the wedding (maybe in a week, maybe in a couple of years!) I’d then like to plant them into the garden. Would you have any advice on whether Iceberg or Brindabella bouquet would be better suited to this? Or another variety that I haven’t yet come across? I’m between the New England tablelands and the North West slopes, it can get quite cool.
    Thanks in advance for any help!

  13. Hello. I recently bought 8 iceberg rose bushes. I turned and fertilized the soil and planted with fertilizer. My roses perk up at night and droop during the day and some have yellow leaves. They have only been planed for one week. Is this normal? I do not want to overwater the plants or kill them. Please help. Thank you.

  14. Do standard Iceberg roses need any special care? I have several 2′ standard Icebergs. I wish they had more leaves and flowers. Also, when I prune them in the winter, how far back should I prune these standard Icebergs?

    Thank you!

  15. Hello, I have recently planted two climbing icebergs, however, we are also trying to get grass seed to take in the soil adjacent to the garden bed. I am watering the grass area with a sprinkler for 15 minutes daily but the soil around the roses is also getting quite wet. I am worried this will be too much water for the roses and not sure what I can do?

  16. Hi- I bought some white ‘iceburg’ roses but they seem to have a blush to the bud. I am hoping they are bright white when they open. Does anyone have experience with this? I appreciate since I might need to return the plants.


    1. ICEBERG flowers will ALWAYS be slightly pink during periods of cool weather … here in early spring and late autumn the flowers seem quite pink! No, please don’t hassle and take the plants back to the purchaser … enjoy them! They’ll be purest white and mildly fragrant during summer … cheers

  17. Hi
    We have planted 2 Iceberg climbing roses. Growing very well been 6 months but no sign of blooms. We live in the south west of western Australia and would appreciate any advise.
    Cheers Marian

    1. Some CLIMBING ROSES will furiously set a lot of growth in their first year and then flower and flower on those canes … don’t worry, if it’s ICEBERG CLIMBING you’ve got, it MOST DEFINITELY WILL FLOWER SOON … Cheers … Diana

  18. Hi Diana,
    I just moved to my new home & I have 4 standed icebergs in the existing garden, although I’m a keen gardener never had any roses till now.
    Do I dead head them as they appear or not,2 flower beautifully & the other 2 not so.
    Love your blog, keep up the great advice, Vikki

  19. Hi Diana,
    I’ve recently got in my apartment a lot of the brilliant pink iceberg, and some of the newly came out petals are fairly light pink or just white, with a tinge of pink. And it was these type of petals appear to bend over or fever fall off before they’re in full bloom. Would you know what could be the problem?
    Always love roses and it’s the 1st time I’m actually ‘raising’ one, keen not to keep them healthy. Appreciate your tips!
    Many thanks!

    1. Emma … BRILLIANT PINK ICEBERG does have different colours on the petals however, I think you might not allow enough FULL SUN to the roses perhaps? Please let me know how much sun they get. Also, are you watering adequately – potted roses must have water every day and water over the entire potting mix so the mix stays damp throughout – not just in the centre! Roots of roses will fill the pot! Cheers – Diana

      1. Hi Diana, I have placed it by a north facing window in the living room (a light filled room all day) and there’s direct morning sun on it for 1-2 hours, rest indirect but still bright. Noted re the daily watering need- am I understanding it right that I need to let the water drain through on a daily basis?
        Much appreciated.

  20. Hello, we have an iceberg bush (several actually). I am new to roses. My husband mentioned dead heading them and I accidentally “pruned” one. It’s mid summer here. What can I do? Have I killed it?? Please help.

    1. Hi … you cannot possibly kill ICEBERG roses by PRUNING THEM no matter how hard. Since you don’t want the stems to burn if it’s really, really hot and you’ve removed all the foliage, you might give it a good soak with seaweed solution as a tonic, a good deep soaking with water and within a few weeks it will be loaded with leaves and flowers again! Cheers

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