Krishna says: "I enter into each planet, and by My energy they stay in orbit. I become the moon and thereby supply the juice of life to all vegetables." ~ BhagavadGita As It Is, 15.13
MOON GARDENING
It was fascinating to me, learning that certain flowers bloom not in the day - but in the evening!
Years back I had one flower that was advertised to open at night, then close during the day. Had to give that a try, and it was true. So endearing to see that!
Next, to find out recently, there are more that also open to the light of the moon, well, I just had to share.
How would we use this in Krishna Consciousness? Well, it makes me think of the Rasa Dance, tho Prabhupada warns us not to get too into that. He tells the story properly however, so here is a link to read that.
If you have a temple room or space or table / altar or meditation area [which includes pics of Krishna etc] .... accompanied by a window for the moonlight to get in - you could grow these flowers for Krishna so at night He also will have something pretty to look at, and not just the day.
If you do not have a window, maybe try a special grow light. I've used these to replace sunlight in the Autumn and Winter. They worked pretty good. But I have no idea how they would work for replacing Moonlight. Give it a shot, but don't spend much money on a lot of plants until you have experimented on one.
Most folks have a window, :) even a small one. If it's not too far away, the plant should aim itself right toward the moonlight. With that said.....
MOONFLOWER: This is what I originally had flowering at night on my windowsill. Actually, I bought it in seed form, planted, and they grew! So easy! Apparently, some think of them as counterpart to Sunflowers. :) 
EVENING PRIMROSE. These bloom at night, but if the day is cloudy it may bloom than too. It does spread fast. If you want that, great! If not, simple solution: Just plant them in pots outside. This plant also has medical value.
NIGHT PHLOX
Very fragrant! And it opens at night, under the evening moonshine. A great offering flower too. Good border plant. It's an annual, meaning its lifespan is one season. About a foot in height.
MISC:
Here are a few optional but lovely ideas to add to an outdoors moon garden:
SOLAR MOBILE BASED WIND CHIMES - COLOR CHANGING LED:
UPDATE: Tho different, here is a different one that costs less and is lovely, no pic here right now but just go to link to view, right here.
ANOTHER: Can't help myself, ha, they are so pretty! These are beautiful dragonflies that show color at night. Go to site and check out pic - they're beautiful.
Bhagavad Gita on Moon Nourishment, Vegetables, Planets, and much more:
"It is understood that all the planets are floating in the air only by the energy of the Lord. The Lord enters into every atom, every planet, and every living being. That is discussed in the Brahma-samhita. It is said there that one plenary portion of the Supreme Personality of Godhead, Paramatma, enters into the planets, the universe, the living entity, and even into the atom. So due to His entrance, everything is appropriately manifested. When the spirit soul is there, a living man can float on the water, but when the living spark is out of the body and the body is dead, it sinks. Of course when it is decomposed it floats just like straw and other things, but as soon as the man is dead, he at once sinks in the water. Similarly, all these planets are floating in space, and this is due to the entrance of the supreme energy of the Supreme Personality of Godhead. His energy is sustaining each planet, just like a handful of dust. If someone holds a handful of dust, there is no possibility of the dust falling, but if one throws it in the air, it will fall down. Similarly, these planets, which are floating in air, are actually held in the fist of the universal form of the Supreme Lord. By His strength and energy, all moving and unmoving things stay in their place. It is said that because of the Supreme Personality of Godhead, the sun is shining and the planets are steadily moving. Were it not for Him, all the planets would scatter, like dust in air, and perish. Similarly, it is due to the Supreme Personality of Godhead that the moon nourishes all vegetables. Due to the moon's influence, the vegetables become delicious. Without the moonshine, the vegetables can neither grow nor taste succulent. Human society is working, living comfortably and enjoying food due to the supply from the Supreme Lord. Otherwise, mankind could not survive. The word rasatmakah is very significant. Everything becomes palatable by the agency of the Supreme Lord through the influence of the moon." ~ Purport of the above verse, Bhagavad Gita As It Is, 15.13
