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Thread: Reducing the photoperiod for winter

  1. #9
    chloroplast's Avatar
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    I can see the logic in doing that to temperate species, but do you do the same for your tropicals?

    Oh, and if memory serves me correctly, you've got those very nice wide windowsills which I would kill for in my apartment. Unfortunately, mine are very narrow and directly above radiators, so any delicate plant that is placed on them is dried the minute I begin turning on the heat. [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_h_32.gif[/img] So it's all grow-racks for my plants.
    Secretary, New England Carnivorous Plant Society (NECPS) http://www.necps.org/
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    Member, The Carnivorous Plant Society (CPS)

  2. #10
    Tropical Fish Enthusiast jimscott's Avatar
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    Last year I had everything outside, temperates and tropicals, both, until min-November. I ended up losing a D. anglica and I had severeal pots of pigmy dews overturned in a 3" rainstorm. I also experienced a lot of D. intermedia, spatulata, U. livida & sandersonnii showing up in other pots (months later). But the most frustrating thing was to end up having aphids on D. adelae, spatulata, and capensis. Don't know if it was coincidence or not, but it was only the 3 tropicals that got aphids. So I decided this year to just leave them on the sills.

    My gravy train with window sills and deionized water is about to end, since we are moving to western NY later this fall. We all have to work with what we have. I can suggest window sills and open tray to new members all I want, but if they don't have the window sills or are facing the wrong way or if they gave cats.... it does no good. Grow racks will work for you and terraria will work for others, while a greenhouse will work for those that have them.

  3. #11
    Outsiders71's Avatar
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    I took in all my tropical plants that were growing outside about 2 weeks ago. Night time temps were just dropping too low. I have reduced the photoperiod inside my grow-shelf to 14 hrs. In another week I will drop it down to 12 hrs. I'll eventually have my light timers setup to the winter sunrise/sunset of the sun here.

    You should give your tropical plants a decreased photoperiod. Afterall even in environments they naturally inhabit get less light during the winter months. Plants do react to the time differences. Tropical pings for instance do not truely go dormant. Their winters are drier, and less light. This triggers them to produce the winter succulent leaves. This is also one of the times these pings will flower.
    James 1:17

    "Every good and perfect gift is from above, coming down from the Father of the heavenly lights, who does not change like shifting shadows."

  4. #12

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    Quote Originally Posted by [b
    Quote[/b] ]They may not require a dormancy, but unless you've got plants that are indigeonous to the Equator, where there are no seasonal differences to speak of, there is a natural change in photoperiod.
    Jim makes a good point. One of the advantages of growing tropical plants under lights is a person can maintain a 12-14 hour photoperiod.

    I observed temperate sundews in the mountains here and noticed that they are extremly sensitive to the photoperiod. I went to check on a spot late August and all the sundews had already died back and formed hibernacula, even though the temperatures weren't below freezing yet. A slight reduction in the photoperiod was all it took.

    Brian

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