The Scoop on Grow Lights

The Scoop on grow lights with Sensible Gardening

This is the time of year when we start to think about what plants we want to start from seed for our spring gardens. The seed catalogues pour in, we spend hours browsing the selections and making our choices. Growing plants from seed is a fair amount of work and expense, so most of all we want to be successful. There is lots to think about, suitable growing containers, proper growing mediums, fertilizers, timing and of course light sources. Grow lights are a major help when growing seeds and plants indoors.

All plants require light for growth and if you are lucky enough to have a very sunny window sill you will have some success, but for optimum success in growing seedlings you really do need an additional source of light. For indoor growing some sort of “grow-light” is what you need. Plant lights are an artificial light source which try to emit a light spectrum similar to the sun for optimum plant growth. There is a large range of bulbs used in horticulture but for the indoor home gardener LED, HID and Florescent bulbs are the most widely used.

Types of Grow Lights

HID Lights ( High Intensity Discharge )

Many HID lights produce a light spectrum similar to the sun, and are therefore very popular for indoor growing. Their range of light is generally suitable to all phases of plant growth. Metal Halide bulbs emit light in the blue and violet parts of the spectrum, producing strong root systems, resistance to disease and a more compact growth. Often used by commercial growers and can be fairly expensive.

LED Lights

Unlike HID lights these bulbs do not require a separate ballast and can be plugged into a standard electrical socket. Since each LED emits a specific wavelength, bulbs can be customized to emit wavelength specific light. An example is that the spectrums of red and blue light have an effect on root development, growth and flowering. LEDs are energy-efficient, have intense light and produce little heat, but are often a bit more expensive.


Fluorescent lights are usually long, thin bulbs or small spiral shaped bulbs. These lights are not as intense and are usually used for starting seedlings. Standard types are T5, T8 and T12 with the brightest being T5. Compact Fluorescent Lights ( CFLs ) are often used in propagation and situations where lower light levels are required. Warm red CFLs are used for flowering and Cool blue CFLs for vegetative growth.

The Scoop on grow lights with Sensible Gardening

Which grow lights should I Use?

Which type of plant light system you choose will depend on your budget, space availability and plant requirements. I have found good results with the T5 Fluorescent bulbs. You can buy a table top version which is easy to put up and is also portable for easy storage. You can also purchase pre built plant stands with lights or use an old book shelf you already have. Tube lights can be hung from the ceiling or attached to the undersides of the book shelve boards. All quite reasonably priced.


The Scoop on grow lights with Sensible Gardening
(some links go to my affiliate Amazon account)

Tagged , , , , , , , ,

About Lynne Cherot

It's been a life time of gardening and many years of working in the nursery trade, but now I enjoy exploring and creating in my own gardens and farm fields . I'm passionate about gardening and work alongside my husband who takes care of our apiary. Bees & flowers make a great team! Hopefully by sharing my garden knowledge, your gardening will be easier and more enjoyable.
View all posts by Lynne Cherot →

1 thought on “The Scoop on Grow Lights

Comments are closed.