Growing indoors reduces the risk of pests and may make it easier to controle, but is not a guarantee. Haven't you never seen any bugs inside your house (ants, roaches, moths, flys etc.), bugs can still get in unless the space is absolutely air tight. Cost effective is in the details, the materials you choose to use, nutrients, testers, pH adjusters, not to mention where you get them from, how you install and/or use them etc. Also how you put everything together, and if you thought about and planed for the details. One person can spend a fortune to grow plants, and another may spend very little to grow the same plants. First thought I have from what you said is LED is nice, but not worth the money yet to me. Perhaps as supplemental lighting to target a specific spectrum of light if you used LED ropes, but not as a primary light source. Especially for the type of plant you said you plan to grow.
But in general crops like lettuce and spinach grow quickly, don't require a lot of light, and have high turnover. Making them a high value crop (profitable) for commercial growers. As long as you don't spend a lot of unnecessary money it should be just as high value for you too.
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08-05-2014, 05:39 AM
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