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Author Topic: SCILLA 2019  (Read 9214 times)

brianw

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Re: SCILLA 2019
« Reply #45 on: January 16, 2020, 10:44:37 PM »
Arnold.
If my calculations are correct your day length is ~75 minutes longer than mine, and you are supplementing it. Much brighter, and nearer Madeira levels; if that is relevant. My greenhouse is also on the north side of my house so screened from direct sunlight for much of the day in winter. I guess this would need to be checked scientifically to prove.
Brian
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Edge of Chiltern hills, 25 miles west of London, England

ArnoldT

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Re: SCILLA 2019
« Reply #46 on: January 17, 2020, 02:59:58 AM »
Brian:

I changed the light scheme based on a recommendation from Rimmer DeVries.

They are on during the day and go off around 6 PM.  I just replaced the fluorescent bulbs with LEDS which seem much brighter.  They are 6400 K.

My greenhouse is on the south side of the house but is shielded from early morning sun by an extension of the house.

I think higher light levels are essential for these bulbs.
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Arnold Trachtenberg
Leonia, New Jersey
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