Top Questions About Lighting

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Questions About Lighting

Asked by
Anonymous on
January 7, 2019

Q. Red and blue light bulbs for plant growth

I have several plants that I am wintering inside. the shortage of sunlight is causing them to Wither can a regular blue and red household lightbulb help to keep them alive until late spring planting. How long should I leave them in the artificial light. Can I use a red and blue light Bulb at the same time? I am currently using a combination of red and blue on a rosemary plant lavender and several other herbs.

Answered by
drtreelove on
January 7, 2019
A.

Here is an informative article that answers your questions better than I can:

https://modernfarmer.com/2018/03/grow-lights-for-indoor-plants-and-indoor-gardening/

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Asked by
Anonymous on
January 13, 2019

Q. Full-Spectrum bulbs.

I have 27 watt 1300 lumens standard screw in full-spectrum bulbs. How far from new seedlings should these bulbs be placed? 4″ above or more? How about when plants reach 6″ in height? I planned on 2 bulbs per 4′ wide area on stainless steel shelving. Please advise.

Thanks Linda Barclay

Answered by
Downtoearthdigs on
January 14, 2019
Certified Expert
A.

If these are standard house incandescent bulbs, then I would not recommend using these. Most of their energy is put off as heat, instead of light quality.

Now, if these are CFL (the corkscrew looking type) then these can be fine for seedlings. LED's have the same effectiveness as long as you get the kind that don't have a globe filtering light. These can safely be hung 6 inches to a foot from the top of the plants at any time. Some may be able to handle being closer, but I would be wary of burning.

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Asked by
Paganoangelo on
May 9, 2019
Silver Creek. 14136

Q. How much light do my garden plants need everyday?

I started plants from seed in window and now want to move them under fluorescent lights Just want to know how long to put lights on for?

Answered by
Downtoearthdigs on
May 9, 2019
Certified Expert
A.

They should have at least 6 hours of darkness.
https://www.gardeningknowhow.com/houseplants/hpgen/what-are-grow-lights.htm

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Asked by
Anonymous on
May 18, 2019

Q. Tree sunlight

The tree pictured hasn’t bloomed for 2 years. I provided photos of the very few leaves it has, as well as the base of the tree. I also sent a picture of a tree I -think- is the same species. I think it doesn’t get enough sunlight. How do i solve that problem, for a fully grown tree being shaded by the building we live in?

Answered by
Downtoearthdigs on
May 18, 2019
Certified Expert
A.

This tree should only be grown in full sunlight. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH.

https://www.gardeningknowhow.com/ornamental/shrubs/lilac/japanese-lilac-information.htm

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Asked by
Anonymous on
October 12, 2019

Q. are LED light strips an effective source in a indoor greenhouse

can I mount the strips between shelves as a light source

Answered by
GKH_Susan on
October 14, 2019
Certified Expert
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