Growing under lights

Growing under lights
Mark Mazer (Fri, 06 Nov 2015 14:59:54 PST)

Jane: Your metal halides will generate quite a bit of heat, care must be
taken. They generally lack enough in the red spectrum for adequate
flowering. Supplemental lighting may become necessary at the proper time.
I'm sure your grower buddy can fill you in.

Mark Mazer
Hertford NC USDA 8a

Nerine bowdenii in bloom in the garden today.

PS: How are the 'mutes handling their city digs?

On Fri, Nov 6, 2015 at 5:38 PM, Tim Eck <teck11@embarqmail.com> wrote:

I suggest a white shade cloth instead of black.

-----Original Message-----
From: pbs [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Jane

McGary

Sent: Thursday, November 05, 2015 10:04 PM
To: Pacific Bulb Society
Subject: Re: [pbs] Growing under lights

My new lamps are metal halide. I have them fairly high above the plants,

but

I will take Kipp's advice and stretch a shade cloth between the light and

the

plants. Many of the plants are young seedlings and thus more sensitive to
burning.
Jane McGary

On 11/5/2015 11:28 AM, Kipp McMichael wrote:

Jane,

I assume your new fixtures are a metal halide or high pressure

sodium.

These are indeed strong lights and can burn even full sun-loving plants.

would suggest shading with cloth or placing more sensitive plants outside

the

"cone" of light directly beneath the fixtures.

Just to note: If you lights are still fluorescents then they are

unlikely to

burn anything unless the bulbs are within inches of the plants.

-|<ipp

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