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Lighting Question.
Hi,
I started growing my orchids under 2 24' 20 watt wide spectrum lights, about 5 inches away, they're smaller orchids. Is this too much ligght or too little, I have an orchid with some new growth, the new leaf is very light green. Is this cool? -Eric |
UMM... no, it doesn't sound like enough light from your description.
But... First a question or two You did mean 24" not 24' ? So this is a single fixture 24" long with (2) bulbs (florec.) at 20 watts each? Does this fixture have a diffusing lens between the lamps and your plants? If yes remove it. Is there any other natural light? Is this next to a window? If so what way is it facing N,S,E, or W? What flavor of orchids? Onc. Phal. Phrag. Paph. Cat. ...... As for the new light green leaf, hard to say without seeing it or knowing what it is. Many years ago when I grew tomatoes (yeah that's it....tomatoes) we experimented with Fluorescent bulbs and fixtures of tiny and super long. In short what we came up with is anything shorter than the 36" bulbs just don't give off enough light to be any good to anything but seedlings for a very short time. The super longs work if you create a fixture that holds more than two tubes side by side. (a real pain in the butt to get aligned and hung then changing the bulbs takes two people) We were trying to stay with floro. so we didn't have to air condition but for that operation we had to go to MH and HPS lamps. The best est and easy est thing if you stay with Floros is a standard four tube fixture from The retail or wholesale outlet of your choice. (Lowes, Grainger) Shouldn't be more than 50 bucks. Grainger sells a moist environment one for really wet areas but it is costly. I have taken an old fixture and sealed it with RTV then sealed a plastic sheet to the top overhanging the whole fixture and it has been getting a good misting every day for about two years and is still in operation. You can get a fairly cheap light meter from a local garden supply now as well. Many books and sites will give you a candle power need for the kind of orchid you are growing. I don't like to say "you have to have X amount of light, air, moisture, or temp" cause I have seen and grown orchids far out of what is considered normal range for good growth for a particular species. Buy a bigger light cause you are just going to buy more orchids anyway and you will need the light. LOL On 31 May 2005 20:26:25 -0700, wrote: Hi, I started growing my orchids under 2 24' 20 watt wide spectrum lights, about 5 inches away, they're smaller orchids. Is this too much ligght or too little, I have an orchid with some new growth, the new leaf is very light green. Is this cool? -Eric |
It does not have a light diffuser,
It's for 2 small phals that I have Violacea, and violacea Mentawa. The new growth is light green, but the remaining older leaves are dark green I give em about 69-73 percent humidity all day & night. I live an an apartment, and the problem with putting them in a window is the 2 large west windows that I have only get light from 3 PM-8 PM. Would that be enough to suppliment? |
Susan Erickson wrote:
On 3 Jun 2005 12:47:09 -0700, wrote: It does not have a light diffuser, It's for 2 small phals that I have Violacea, and violacea Mentawa. The new growth is light green, but the remaining older leaves are dark green I give em about 69-73 percent humidity all day & night. I live an an apartment, and the problem with putting them in a window is the 2 large west windows that I have only get light from 3 PM-8 PM. Would that be enough to suppliment? As long as the light is not still HOT. The sun at 3 should be great light. It should I am guessing be far enough off the noon heat to be just good strong light. When you move them to more light remember they can sunburn just like you and me. Move them slowly so they can adjust to the extra light. Good luck and good growing. SuE http://orchids.legolas.org/gallery/albums.php I think I'll agree... But just to be safe, start them off a foot or two away from the window (maybe on a card table or similar temporary support). For the summer, your window probably has enough light without supplementation. In the winter, you might want to run your light a little bit (4 or 5 hours should do it). I've seen phals grown adequately in far worse conditions than you describe. Far far worse. I think you are in pretty good shape. Rob -- Rob's Rules: http://littlefrogfarm.com 1) There is always room for one more orchid 2) There is always room for two more orchids 2a) See rule 1 3) When one has insufficient credit to obtain more orchids, obtain more credit |
Thank you very much SuE, that was really helpful
Eric |
Hey SuE,
I'm sorry to ask a question again, but would it be okay if I used the light fixture with the 3-8 light? Eric |
On 3 Jun 2005 21:44:52 -0700, wrote:
Hey SuE, I'm sorry to ask a question again, but would it be okay if I used the light fixture with the 3-8 light? Eric It sounds like you have 5 hours of good light. You could use the lamps to give you a 10 to 12 hour 'day'. Remember lamps that are too far from the plants are not effective. www.firstrays.com also has a piece on how far you can have the bulbs. Good growing. SuE http://orchids.legolas.org/gallery/albums.php |
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