Tomatoes + Using Mirrors for More Sun?

cshoreySeptember 5, 2012

I'm pretty new to gardening so this might be an all over the place set of questions.

I've been trying my hand at "upside down"/hanging tomato plants but I am limited with the amount of sunlight I can get because I live in an apartment building with limited space outside.

I've been doing a kind of experiment with three different tomato plants.

1 plant: in complete, regular sun

1 plant: in the shade with sun provided by a "Sunflower Home Heliostat" (it's basically a mirror that has a sun tracker so it can provide consistent sunlight to my tomato plant)

1 plant: gets afternoon sun but is otherwise in the shade

What I've found is the regular sun and mirror plant have flowered at about the same rate, and the fruit itself has grown at about the same rate -- but the mirror ones are actually bit larger. I'm not sure if this is due to the more consistent sunlight or if it might have to do with, maybe, the amount of fertilizer the plants are receiving (the one with the mirror is farther away from my building so it doesnt have runoff from the roof pouring through it in the rain... which could be washing away fertilizer or something), or maybe even pollination for the plants, because they're in a slightly different locations so maybe the access to them by bees or something varies enough? Maybe I'm just over thinking things... And then the plant that only gets afternoon sun, I've been struggling with overall.

I guess I'm just wondering if anyone has any thoughts on:

1. how much sunlight tomato plants actually need

2. how much fertilizer should I be using? if anything?

3. do I need to pollinate the plants myself somehow?

4. using mirrors to increase sunlight to plants in general and on tomatoes specifically - is this good, bad, effective?

And just if any experienced tomato growers might have any explanations as to the results I've been experiencing.

I'd appreciate any thoughts/explanations/comments. Thank you!!

Thank you for reporting this comment. Undo
northerngurl(5)

I read one time that it was at least 7 hours. The more the better for tomatoes.

    Bookmark   September 23, 2012 at 10:14AM
Thank you for reporting this comment. Undo
jonfrum(6)

Mirrors do seem like a good idea,but I've read that they can burn/sunscald the plant. There is such a thing as too much sunlinght. Mirrors are not perfectly flat, and can focus sunlight on spots. And it's not like the mirror can lengthen the time of daylight. I have to confess i've tried this on a small scale, and didn't see any results - or any harm.

    Bookmark   October 27, 2012 at 4:35PM
Sign Up to comment
More Discussions
slugs at chard under agribond...
Looks like slugs have been at my chard - under agribon...
t-bird
How to keep this plant
Hi all, I am new in NZ and absolutely know nothing...
eoslee
To Build or To Buy, that is the question
I am looking into beginning a year round garden on...
StairwayToKevin
Desert gardening?
I'm moving to a desert climate pretty soon and do not...
oohstella
Anyone grow tomato indoors?
Wondering if I should try growing tomatos in cellar...
kdup
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™