Lemon Trees
Q.

Full spectrum CFL lights for lemon tree

Zone 20878 | Anonymous added on November 16, 2017 | Answered

Does a full spectrum CFL have red and blue light? Would a Spiral CFL - 26 Watt - 100W Equal - 5000K Full Spectrum be ok for an indoor lemon tree or do I need to buy a red light and a blue light? Thank you, Becky

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on November 16, 2017

Full spectrum CFLs are supposed to be more similar to daylight and one labeled as 5000K would have light output that averages 5000K, probably including multiple colors. But the quality of this may vary by manufacturer. If the packaging includes a graph of the spectrum the bulb provides, you will be able to see if it provides sufficient red and blue light.

A more traditional (and perhaps more reliable) method would be to buy one "red" 2700-3000K bulb and one "blue" 5000-6500K bulb.

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