Growing under lights

Jane McGary
Fri, 06 Nov 2015 10:48:42 PST
Thanks to all for the information on growing with lights. I find that my 
"new" fixture has separate controls for the pairs of metal halide lamps 
(tubes), so I'm experimenting with using just one of the three pairs 
available. The fixture came with pulleys that can adjust the height; I 
have it about 24 inches/60 cm above the top of the plants. As someone 
recommended, I placed the less sun-loving plants off to the side, not 
directly under the lamps. There is a large window next to the plants, 
but it's west-facing and gets little winter sun.

I hope this succeeds in bringing along the South American bulbs, such as 
Leucocoryne, which have germinated like grass this past week. I find 
that at least some species of this genus do well in the bulb house in 
spite of a little frost. The same is true of coastal Californian bulbs. 
One wonders if these species, which now experience little if any 
freezing in nature, preserved some frost resistance from an earlier 
evolutionary stage.

Jane McGary
Portland, Oregon, USA

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