Gardening Houseplants Light Needs of Plants Plant lights

Light your Plants Cool and Warm

Combine Cool White and Warm White tubes in the same lamp for good results with most houseplants. Source: edisontechcenter.org

It isn’t necessary to buy expensive horticultural tubes to light your houseplants: using the two most widely available fluorescent tubes, which are also the cheapest, will give you results close to or even better than the 20 to 40$ horticultural varieties. Just mix one Cool White tube (CW) and one warm white huge (WW) and you’ll give  your plants lighting of a sufficient quality for them to grow and bloom very well. Many people who produce plants to compete in plant shows use the cool white/warm white combination.

If you’re growing plants under LED lights, the same applies: look for Cool White and Warm White equivalents.

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Typical home light garden. Source: laidbackgardener.blog

For great plants, just install a two-tube lamp 6 to 12 inches (15 to 30 cm) above your plants and use a timer so they’ll have 14 to 16 hours of light per day. This will convince them they’re living an eternal summer, with the lush growth and abundant flowering that ensue.

Garden writer and blogger, author of 65 gardening books, lecturer and communicator, the Laidback Gardener, Larry Hodgson, passed away in October 2022. Known for his great generosity, his thoroughness and his sense of humor, he reached several generations of amateur and professional gardeners over his 40-year career. Thanks to his son, Mathieu Hodgson, and a team of contributors, laidbackgardener.blog will continue its mission of demystifying gardening and making it more accessible to all.

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