1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Please note - to keep GC running smoothly, from time to time the staff will have to close a long thread and continue it in a new thread. You too can do your bit to help - if you have a long running PM conversation, please terminate the conversation and start a new conversation. For further information, please contact a member of the staff team.
    Dismiss Notice

Canna 2012

Discussion in 'General Gardening Discussion' started by HarryS, Jan 29, 2012.

  1. HarryS

    HarryS Eternally Optimistic Gardener

    Joined:
    Aug 28, 2010
    Messages:
    6,942
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Wigan
    Ratings:
    +11,118
    As the other Canna post is getting huge , I thought it would be better to start a new one for this year, to glean peoples know-how, experience and hopefully good results.
    I am growing C.Tropical from rhizomes and C. Marabout , C.Altensteinii ( kindly donated from Bilbos last crop :dbgrtmb: ) from seed.
    I have just sown the seeds this weekend. The pics below show a method of clipping the seed coating to aid germination. I got this on GC last year from Pete and Kristen , I think. Hold the seed on a pillar of bluetack and grip lightly with a pair of old pliers ( the rust is optional ! How embarrassing ) Use a round file to chip the seeds as shown , they are very hard so it does take a few strokes . I soak them overnight in tepid water , then sow them in Multi Purpose compost and pop onto the prop. They germinated in 5 days last year but 8 to 12 days is the stated time.:thumbsup:
    The problem with cannas is finding space for them as they grow, without upsetting Mrs H , before they can be planted out :scratch:

    [​IMG]
    [​IMG]
     
    • Like Like x 7
    • JWK

      JWK Gardener

      Joined:
      Jun 3, 2008
      Messages:
      18,409
      Gender:
      Male
      Location:
      Surrey
      Ratings:
      +16,954
    • PeterS

      PeterS Total Gardener

      Joined:
      Mar 18, 2005
      Messages:
      6,544
      Gender:
      Male
      Occupation:
      Retired
      Location:
      N Yorks
      Ratings:
      +3,437
      I am only growing Canna tuerckheimii from seed this year, just in case my rhizomes from last year don't make it overwinter. I clipped, then soaked them for two days a week ago. And three days after that the first one germinated - 5 days from the start.

      Looking back at my records it was 8 days for tuerkheimii last year and 9 days for 'Tropical Rose'. I had forgotten how quick they were.
       
    • HarryS

      HarryS Eternally Optimistic Gardener

      Joined:
      Aug 28, 2010
      Messages:
      6,942
      Gender:
      Male
      Occupation:
      Retired
      Location:
      Wigan
      Ratings:
      +11,118
      Just one other point on chipping the seeds , some sites say use nail clippers or a craft knife! :nono::nono: I think this would be lethal for your fingers, the seeds are very very hard !
      Peter, John when do you plan to start your Canna rhizomes :scratch: Mine are currently stored in a cold dark garage in moist compost.
       
    • PeterS

      PeterS Total Gardener

      Joined:
      Mar 18, 2005
      Messages:
      6,544
      Gender:
      Male
      Occupation:
      Retired
      Location:
      N Yorks
      Ratings:
      +3,437
      Pete is the man for Canna rhizomes. I am not - my rhizomes from the previous year rotted over winter. Last autumn, I cut my tuerckheimii, in a pot, back almost to the ground. I think this was a mistake - Pete suggested that I should have left some greenery on to help draw the moisture up out of the compost. I had another Canna (from Pete), which I cut back later and left some green on that. Its now looking quite healthy with some green leaves, even though its in a frost free shed with little light.

      After Pete's comments, I repotted my tuerckheimii in drier compost which hopefully has saved it. But I recently bought it inside the house under a fluorescent light to help it keep rot at bay.

      I don't know how you start them off. Presumably they need heat to jump start them into growth - but how much?
       
    • pete

      pete Growing a bit of this and a bit of that....

      Joined:
      Jan 9, 2005
      Messages:
      23,404
      Gender:
      Male
      Occupation:
      joinery
      Location:
      Mid Kent
      Ratings:
      +17,867
      I've ordered some Canna speciosa seed this year, its not arrived as yet.

      As to the stored rhizomes, mine will remain in the garage for the next month to six weeks.
      Mainly because they are likely to start growing and get big before I can plant them out.

      I usually do the division in spring at potting up time, so I like things to have warmed up a bit before dividing and potting up, so growth can start immediately.
      I find normal greenhouse temps in early April will get them moving, but have been known to give them some bottom heat if I'm in a hurry.:)
       
    • ARMANDII

      ARMANDII ADMINISTRATOR Staff Member

      Joined:
      Jan 17, 2011
      Messages:
      38,181
      Gender:
      Male
      Occupation:
      Semi-retired
      Location:
      West Cheshire
      Ratings:
      +43,591
      I took Pete's advice about leaving the rhizomes in the pots and, fingers crossed, so far so good. I've got some in the kitchen and some in a cool room along with some other plants in pots.

      Cool Room:

      [​IMG]

      [​IMG]

      Kitchen area:

      [​IMG]

      The only problem I've had so far was in the Cool Room where there was a sudden plague of Greenfly last week, presumably from some unseen eggs, which I caught and got rid of.
      While not having the compost damp, I have been trying to judge with my fingers when it was, in my estimation, too dry and then I would water with a jug of tepid to warm water, which seems to have worked. The ones in black pots in the kitchen area will be transferred to bigger pots in the Spring.

      I've got some Canna seeds in the fridge at the moment just waiting to be sown. It'll be interesting to see how we all get on.:thumbsup::D
       
      • Like Like x 5
      • Bilbo675

        Bilbo675 Total Gardener

        Joined:
        Mar 15, 2011
        Messages:
        4,461
        Gender:
        Male
        Occupation:
        Gardener & Plant Sales
        Location:
        South Derbyshire
        Ratings:
        +6,481
        Hi all, can't wait for the 2012 Canna 'journey' to begin, I've got 6 varieties to sow from seed (or 5 if some of last years Altensteinnii rhizomes have survived); which I'll be doing in the next couple of weeks - hopefully :D

        I have a shed full (at least 20) of Altensteinnii rhizomes from last year; surely this time I'll have got at least a couple of decent ones through the winter, especially given that it hasn't been anywhere near as cold as the last two. The last time I checked them, some had completely browned off and there was a little mould but nothing major(no signs of rot that I could see), so I simply cut that off and discarded it. A couple still had a bit of green growth on too, so they maybe my best bet of healthy rhizomes :thumb:
         
        • Like Like x 1
        • ARMANDII

          ARMANDII ADMINISTRATOR Staff Member

          Joined:
          Jan 17, 2011
          Messages:
          38,181
          Gender:
          Male
          Occupation:
          Semi-retired
          Location:
          West Cheshire
          Ratings:
          +43,591
          Got my fingers crossed for you, Bilbo!:thumbsup::D
           
        • HarryS

          HarryS Eternally Optimistic Gardener

          Joined:
          Aug 28, 2010
          Messages:
          6,942
          Gender:
          Male
          Occupation:
          Retired
          Location:
          Wigan
          Ratings:
          +11,118
          Photo below of C.Marabout after 1 week on the propagater and 1 week in the light box. They are doing well 100% germination after a 24 hour pre soak in weak cold tea.:dbgrtmb:
          The C.Altensteinii are struggling a bit Bilbo . One out of the four germinated after 9 days . The other 3 , I have just removed from the compost after 14 days. There was no sign of germination , so I have popped them into another solution to soak for 3 days in the airing cupboard. Then I can try again . Fingers crossed. Let me know how you get on with yours.

          [​IMG]
           
          • Like Like x 4
          • Bilbo675

            Bilbo675 Total Gardener

            Joined:
            Mar 15, 2011
            Messages:
            4,461
            Gender:
            Male
            Occupation:
            Gardener & Plant Sales
            Location:
            South Derbyshire
            Ratings:
            +6,481
            Looking good there Harry; I'll be getting mine in this week...been doing a LOT of painting after our house was re-wired.....:(

            I've always had nearly 100% germination with Altensteinii but if memory serves me correctly they have on occasions been erratic; if I've sown 4 or 5 seeds to a pot I have been pricking some out that have been 2-3" when other seed might have just started germinating....so still time yet :dbgrtmb:
             
          • sal73

            sal73 Total Gardener

            Joined:
            Sep 4, 2011
            Messages:
            2,833
            Gender:
            Male
            Location:
            Bedford
            Ratings:
            +2,991
            Hi all...Just come back from Thailand and seen some really strange canna over there , absolutly not noticeable because of the other impressive flowers...I`ve collected lots of yellow flower canna seeds , the flower is massive and seen them growing even in water....
            [​IMG]
            there is a red variety absolutly stunning but couldn`t find any seeds , green leaves , true red flower and reddish stem .
            while I was going around I`ve notice this other canna ....incredible as well
            [​IMG]
            called torch canna........at first impact I tough it was a ginger , but i was a canna.
            Finally when I tough that canna wouldn`t get my attention anymore this one come along.[​IMG]

            called the rainbow canna comes in orange , yellow and red ......seen growing the in water again and in wild areas near ponds .
            Got some spare yellow thai canna seeds if anyone interested .
             
            • Like Like x 8
            • HarryS

              HarryS Eternally Optimistic Gardener

              Joined:
              Aug 28, 2010
              Messages:
              6,942
              Gender:
              Male
              Occupation:
              Retired
              Location:
              Wigan
              Ratings:
              +11,118
              Thanks Sal for the pics :dbgrtmb: The red flowered one is stunning , but the camouflage leaf pattern on the Rainbow Canna is the one for me. Would this type grow in the UK ? I can't take you up on your kind offer of seeds as I am already struggling for growing space. I think Bilbo and Armandii have plenty of space left though :heehee:
               
            • pete

              pete Growing a bit of this and a bit of that....

              Joined:
              Jan 9, 2005
              Messages:
              23,404
              Gender:
              Male
              Occupation:
              joinery
              Location:
              Mid Kent
              Ratings:
              +17,867
              Nice ones Sal, that red is good and like Harry I like the Rainbow one.

              I'm tending to think they flower better out there than here, but should still be worthwhile growing.:dbgrtmb:
               
            • ARMANDII

              ARMANDII ADMINISTRATOR Staff Member

              Joined:
              Jan 17, 2011
              Messages:
              38,181
              Gender:
              Male
              Occupation:
              Semi-retired
              Location:
              West Cheshire
              Ratings:
              +43,591
              Yes, really nice pics. The top one looks similar to the variety Yellow King Humbert, with the blotched markings.

              I've still got my Canna seeds in the fridge but will be starting to chip, soak and sow them from tomorrow. I've got enough projects on this year to keep me more than busy, believe me.!!
               

            Share This Page