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Sunlight and Avoiding a Growlight

Posted by Spyder_Jerusalem 9 (My Page) on
Mon, Jan 31, 05 at 16:19

Well here is my situation and my question. Sorry but this is a bit of a newbie question:
I have a hydrosystem setup on my screened in porch.

1. I would like to know if there is a way to get more sunshine on my porch without altering the structure (no roof holes, etc.) I would like to avoid using a growlight.

2. How do I measure the amount of sunlight, how do I know if it is enough? I know that the second part of this question depends on the plant.

Thanks for any help/


Follow-Up Postings:

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RE: Sunlight and Avoiding a Growlight

1. Big mirror :)

2. If you have direct sunlight on the plants, that is bright enough. Try for as many hours as possible each day. If you don't have direct sunlight then your eye is very poor at judging the brightness. Either judge by how well the plants are growing or get a light meter of some kind. You can get a very crude estimate by seeing if your camera wants to use the flash to take pictures.


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RE: Sunlight and Avoiding a Growlight

You might want to reconsider on the 'no roof holes' thing.

A skylight would help. There's a style I've seen with mirrorized mylar on the inner sides that captures light and bounces it all over.


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RE: Sunlight and Avoiding a Growlight

Obvious question - do you have outdoor trees, shrubs, etc. that are shading the windows that you could trim or remove? Are there window treatments you can remove? Other than that, you won't get more light without structural changes or growlights, sorry!


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RE: Sunlight and Avoiding a Growlight

In the place of a big mirror, consider using a big sheet of aluminum foil BEHIND the plants to reflect the sunlight you do get back onto the plants.


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