Not Enough Light, What You Guys Think About This Setup?

Messages
106
Reaction score
78
Location
Seattle
USDA Zone
8b
So, I thought that my patio wasn't getting enough light so I decided to go for a little project.
I have put my babies underneath a grow lights 6xBulbs T5 HO 6500K the distance from the top of the left maple is 6 inch and I have run a little test getting 4820 Lumens on top of the tree and 3000 Lumens below.
Is anyone here having a similar setup? Is the 6 inch enough to don't get the leaves of my Maple burned or I should increase it and how much more?

Out of confusion, the trees are outside so is not an indoor setup - Thanks

IMG_7351.JPG
 

pbrown00

Mame
Messages
161
Reaction score
160
Location
Seattle, Washington
As a fellow Seattelite, I recommend just keeping them on your patio. If your concern is because of the cloudy days, you don't need to worry. If, however, there is another reason that you don't think they get enough light, such as location-wise (in permanent shade or something), then I'm not sure what you should do. Personally, I have never seen maples under grow-lights, so I don't have any authority to say it won't work.
 
Messages
106
Reaction score
78
Location
Seattle
USDA Zone
8b
As a fellow Seattelite, I recommend just keeping them on your patio. If your concern is because of the cloudy days, you don't need to worry. If, however, there is another reason that you don't think they get enough light, such as location-wise (in permanent shade or something), then I'm not sure what you should do. Personally, I have never seen maples under grow-lights, so I don't have any authority to say it won't work.
Thank you I appreciate your honest answer.
 

WOOB

Sapling
Messages
40
Reaction score
67
Location
Northen New Jersey
Years ago I went to a 2 day teaching weekend with David D. he spoke about growing under lights. Granted years ago but he spoke about the tress should be as close as the can to the light source (not if they are hot). My tropical grow right into the light yours look far away and open the blinds.
 
Messages
106
Reaction score
78
Location
Seattle
USDA Zone
8b
Years ago I went to a 2 day teaching weekend with David D. he spoke about growing under lights. Granted years ago but he spoke about the tress should be as close as the can to the light source (not if they are hot). My tropical grow right into the light yours look far away and open the blinds.
Thanks WOOB for the feedback, I have put at 6 inch cause I was afraid to the leave to burn. Yes I agree with you on the distance as much close as I can but I got to cut my sacrificial brunch cause was to close and burned that was 2 inch, hence I am trying to understand how much closer I can go to the top of the tree which since is apical I guess will go on that way anyways.
 

Cadillactaste

Neagari Gal
Messages
12,896
Reaction score
12,425
Location
NE Ohio: zone 5b (USA)
USDA Zone
5b
This photo was taken at what time of day? Plants need so many hours daylight and also periods without. I mentally can't grasp the need for a grow light outside. I have my back trees on the patio under my upper balcony. They get so many hours of morning sun.
 
Messages
106
Reaction score
78
Location
Seattle
USDA Zone
8b
I took this picture at 2:40 pm I happen to have a sun during this time and for just 30 minutes all the rest is shade.
 

Cadillactaste

Neagari Gal
Messages
12,896
Reaction score
12,425
Location
NE Ohio: zone 5b (USA)
USDA Zone
5b
I took this picture at 2:40 pm I happen to have a sun during this time and for just 30 minutes all the rest is shade.
Wow that was mid afternoon. I would love to see the entire area...if you wouldn't mind. No yard space for a bench?
 

ysrgrathe

Shohin
Messages
416
Reaction score
490
Location
CA
USDA Zone
9b
So, I thought that my patio wasn't getting enough light so I decided to go for a little project.
I have put my babies underneath a grow lights 6xBulbs T5 HO 6500K the distance from the top of the left maple is 6 inch and I have run a little test getting 4820 Lumens on top of the tree and 3000 Lumens below.
I don't think I understand this. Lumens is not really a useful measurement; do you have a lux reading? I would say you should have no less than 20,000 lux for maples long term (less is OK in early spring etc.). Your 6 light T5 HO should give you close to that, at least immediately under it.

If you want to learn more about light requirements this is good reading:
https://www.extension.purdue.edu/extmedia/HO/HO-238-W.pdf

One problem is that many people will use different units. The following are all roughly equivalent to the light output I mentioned above. What is most useful/important is the DLI (Daily Light Integral) which is the sum total of the light exposure during the day.
  • 75 w*m^2
  • 350 u-mol*m^2/s
  • 21,000 lux (lumens/m^2)
  • 1900 foot-candles (lumens / ft^2)
  • 20.16 DLI implied (at 16 hours per day of light)
I bet if you put your maples at the edge of the balcony, they will get a higher DLI than being under those lights.
 

sorce

Nonsense Rascal
Messages
24,440
Reaction score
32,429
Location
Berwyn, Il
USDA Zone
6.2
I would switch and put the veg in the back..
Trees in the front....

That light setup may actually be creating less light outside.

I wonder if you can install a "satellite dish" on the roof...that is really a mirror to reflect you more sunlight.

When in doubt...always do as the Egyptians!
Lol!

Keep good heavy shade species..."understory trees" "delicate leaved plants"..

Sorce
 

Cadillactaste

Neagari Gal
Messages
12,896
Reaction score
12,425
Location
NE Ohio: zone 5b (USA)
USDA Zone
5b
Sorce offered up good direction. Move those trees to the front. And when adding to your collection find one's which do well in shade. To set back further.
 

zelk

Shohin
Messages
408
Reaction score
298
Location
San DIego
USDA Zone
10a
Flouros are weak and on top of that the blinds are shut. You would need a high powered light like a high pressure sodium bulb or something around those lines for a decent experiment. Keep them outside to simplify life.
 
Messages
106
Reaction score
78
Location
Seattle
USDA Zone
8b
I would switch and put the veg in the back..
Trees in the front....

That light setup may actually be creating less light outside.

I wonder if you can install a "satellite dish" on the roof...that is really a mirror to reflect you more sunlight.

When in doubt...always do as the Egyptians!
Lol!

Keep good heavy shade species..."understory trees" "delicate leaved plants"..

Sorce
Thanks Sorce,

this is a very good advice... appreciate the feedback.
 
Top Bottom