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. > I > > 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 > > > > > > > _______________________________________________ > > pbs mailing list > > pbs@lists.ibiblio.org > > http://pacificbulbsociety.org/list.php > > http://pacificbulbsociety.org/pbswiki/ > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >