No subject

[Arisaema Enthusiast Group (AEG) Discussion List (and other=]

hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
Sender: "Arisaema Enthusiast Group (AEG) Discussion List (and other=
From: Bonaventure Magrys <bonaventure at OPTONLINE.NET>
Subject: Re: Grow Lights
In-Reply-To: <6.0.1.1.2.20060117143558.01e1f008 at postoffice.att.net>
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii
Content-transf er-encoding: 7BIT
Content-dispos ition: inline

The plants themselves are the best meters. Start them far and gradually m=ove them upwards as they acclimate and mature, increase in size and crowd=or are crowded and shaded by their neighbors. You may use inverted flowe=rpots under their pots, or plastic milk crates or somesuch.

I generally find up to 1 mm from a flourescent, burning only upon contact=, and not even in all cases. High wattage HPS and Metal Halide (MH) suits=full sunlight plants at just a half meter away and will slow and compact=fast vegetative growth at that distance.

To clear up what I've written before, my 250W metal halide (Venture Light=ing) brightly lights a 5 x 5 foot (almost 2 x 2 meter) area in my main ba=sement grow box, being suspended about 2 feet from the tops of plants in =the center. Shade loving plants are further out and lower to the floor. O=f course I lined the walls with discarded mirrors for extra reflected lig=ht and "effect".

On these walls, in a shadier area (the case is approx. 5 x 8 feet)  I hav=e mounted 2 outdoor type 75W wall mounted HPS fixtures (Home Depot). I mo=ved some of the high MH light orchids and a putative saxatile x tortuosum=hybrid, from the central area, to within 1 foot (~ 35 cm) under one HPS =unit and they have responded well even though the light gives the plants =a yellow cast when on.
The other HPS is on the wall of the high light area just above the mirror=behind my several miniature Cymbidiums so that they get high MH light on=one side and above, and HPS light from behind and above.
This is the first time I have gotten them to initiate spikes (bloom stems=) in winter indoors.

Bonaventure Magrys

----- Original Message -----
From: "George R. Stilwell, Jr." <GRSJr at WORLDNET.ATT.NET>
Date: Tuesday, January 17, 2006 2:37 pm
Subject: Re: Grow Lights

> At  1/17/2006 11:03 AM, you wrote:
> >  you should probably replace them after about 6-8 months
> >-Ken Mosher
>
> A cheap light meter will let you use them until they burn out.
> Just change
> the distance to the plants as they age.
>
> Ray
>