User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 8 of 11

Thread: not increasing in size....

  1. #1

    Join Date
    Oct 2003
    Location
    County of Fribourg / Switzerland
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Thumbs down

    For quite a number of months, my merriliana and my northiana aren't increasing in size....
    They're supposed to be easy growers I know.... [img]http://www.**********.com/iB_html312/non-cgi/emoticons/ghostface.gif[/img]
    All the other Neps in this lowland tank grow really well (bical, rafflesiana, belii, truncata, longifolia, adnata, ampullaria, mirabilis) (I currently grow almost 40 different Nep species)
    It shouldn't be the light, because my system has worked really well for years. The humidity level is about 90 %.

    Should I maybe repot them ?

    To people who grow these species : what medium do you use ?
    (I can get coco fibers, peat, sphagnum moss, perlite, ceramis...)
    David Streit
    Le CLos-Muré
    1663 Pringy
    Switzerland

    www.geocities.com/djcarnivores

  2. #2

    Join Date
    Aug 2003
    Posts
    1,163
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi David,
    Your problems are probably not the potting mix. For growing northiana, check out the article in the CP Newsletter from summer of 2003. Northiana can be picky, but it seems more of a consistent humidity problem than growing mix. I posted here a little while ago about a friend who had a northiana growing beautifully next to the mist propagation bench. The plant was constantly getting the overspray. When the plant was moved, it went down hill. Putting it back where it got the regular misting resulted in a pitcher producing happy plant.
    We have several merriliana in our greenhouse and they are slow but steady. Use a well draining mix. We add extra aliflor (little clay pellets) to standard mix and overpot. Merriliana has a large, deep root system, so give them lots of room. We've found that it is a little sensitive to cold. If you use a growing chamber, this should not be a problem. As for light levels: northiana likes shade, merriliana likes the norm-not too bright, not too shady.
    Hope this is helpful.

    Trent

  3. #3
    Moderator
    Join Date
    Jun 2002
    Location
    Westchester County, New York
    Posts
    5,377
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi Dave,
    I agree about the merrilliana (don't grow northiana, so can't help you there). It's slow, but steady. I've had mine for several months. It's put out several leaves, but hasn't really increased in overall diameter. They really do need that deep pot. I have my 4" or 5" diameter plant in a 4" pot, but it's 10" deep. My mix, incidently, is roughly 50% LFS, 30% orchid mix, 20% pete. Roughly.
    17 Nash Rd.
    North Salem, NY 10560

    YOU! Outta my gene pool!

  4. #4
    swords's Avatar
    Join Date
    Apr 2002
    Location
    Cernunnos Woods
    Posts
    8,120
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    David,
    My N. northiana grows well but it doesn't increase in actual diameter rapidly. I've had it for over a year and it only went from 4" to 14" in diameter but it has continually produced leaves and pitchers about one every 4 weeks or so, it just does not have the dramatic size incrases that other plants do. I have mine in a too-small pot as well which may be effecting the size increases/further growth.

    Mine is simply potted in pure LFS, a few handfuls of small diameter orchid bark and some horticultural charcoal. Now the top portion is alive and growing over the pot and the Neps roots have decided that the living sphagnum is best so the mound of living sphagnum is filled with fine N. northiana roots.

    I can't make any comment on N. merilliana as it was due in my next Nep shipment. Which has been delayed a second time now, until Spring 2004... [img]http://www.**********.com/iB_html312/non-cgi/emoticons/mad.gif[/img]

  5. #5

    Join Date
    Oct 2003
    Posts
    50
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi David,

    I am from Malaysia. So, in theory, growing N. northiana here should be a piece of cake. Not so, in fact northiana and campanulata are one of my slowest growing plants. Northiana must be a slow grower. It is the only plant I received from MT back in March without any pitcher. Even N. lowii came with small pitchers. Anyway, N. northiana has increased 50% in size since I had it.

    Choong

  6. #6
    Nepenthes Specialist nepenthes gracilis's Avatar
    Join Date
    Sep 2001
    Location
    Alexandria Bay, NY Z-5a
    Posts
    6,341
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    N. northiana is an easy grow but no so easy pitcherer. Seems it me it likes quite a deal of shade as stated earlier and a great deal of humidity, thus the reaction of the plan to this misting system as Trent observed. I would have all my Nepenthes in my greenhouse if I had a heated enclosure which will be debated over the long winter up here [img]http://www.**********.com/iB_html312/non-cgi/emoticons/wink.gif[/img]

    N. merrilliana is a difficult plant that would be touted as "tricky" if I could describe it's cultivation. Seems it needs an EXTREMELY deep pot to grow well. My plant is in a 1 gallon nursury pot and roots are already being seen at the bottom of the pot about 1 and a half years after repotting it. I think I might as well plant it in a 3 ft deep pipe!

  7. #7

    Join Date
    Jul 2002
    Posts
    440
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hello David,

    I'm sorry to hear that your N. northiana and N. merrilliana are not doing as well as you'd like. Since I've enjoyed some success with both of these species, perhaps I can offer some suggestions.

    Regarding the former species, what is your temperature range? Also, are you feeding this plant? Although it is distasteful, I feel that feeding is truly essential for successful cultivation of some Nepenthes considered difficult to grow. Personally, I doubt that your choice of compost is the problem.

    As for the latter species, have you tried using laterite granules in its compost? I think that you will enjoy more profound (and colorful) growth if you do. Also, be sure to feed!

    Best of luck to you!

  8. #8

    Join Date
    Oct 2003
    Location
    County of Fribourg / Switzerland
    Posts
    9
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for all the answers [img]http://www.**********.com/iB_html312/non-cgi/emoticons/biggrin.gif[/img]

    I'll repot them in a deeper pot with a more draining mix ! ( I think their growth has stopped because the mix was old and not draining enough.... too wet)

    I don't think the temperature is a problem either, 'cause, I have quite typical lowland conditions and... all others seem to grow well !

    I haven't been fertilizing them, but I have started some tests (with a foliar fertilizer rich in oligo-element : "Vitalisant pour plantes" by Hauert)
    I'm trying also "the milk feeding method" on some other plants [img]http://www.**********.com/iB_html312/non-cgi/emoticons/tounge.gif[/img]

    I'll try to find a mysting system (if it doesn't cost to much money [img]http://www.**********.com/iB_html312/non-cgi/emoticons/wink.gif[/img] ) But, my humidity is already constantly at 90% or above !?!

    Questions :
    What are these "laterite granules" ?
    What is meant by LFS ? I'm a non native speaker hahahaha [img]http://www.**********.com/iB_html312/non-cgi/emoticons/tounge.gif[/img]
    David Streit
    Le CLos-Muré
    1663 Pringy
    Switzerland

    www.geocities.com/djcarnivores

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •