Hard to say. For a small plant with low water content, I could imagine that it would be effectively cryogenically preserved, meaning indefinitely. An aloe or other succulent, for example, would freeze and die. But maybe a stem cutting or woody plant might survive. Or a moss or lichen (though lichen aren’t plants). Assuming it doesn’t get baked by unfiltered sunlight or destroyed by high-energy radiation.
Things don’t freeze in space. It’s actually very hard to lose heat in space because a vacuum is a very good insulator. If it’s in direct sunlight it’ll get hot.
Also to freeze you need moisture, which typically boils off in a vacuum.
Hard to say. For a small plant with low water content, I could imagine that it would be effectively cryogenically preserved, meaning indefinitely. An aloe or other succulent, for example, would freeze and die. But maybe a stem cutting or woody plant might survive. Or a moss or lichen (though lichen aren’t plants). Assuming it doesn’t get baked by unfiltered sunlight or destroyed by high-energy radiation.
Things don’t freeze in space. It’s actually very hard to lose heat in space because a vacuum is a very good insulator. If it’s in direct sunlight it’ll get hot.
Also to freeze you need moisture, which typically boils off in a vacuum.
It’s a nitpick, but boiling causes cooling. If you dump water into space you actually do get a mix of ice and steam/vapour.
Otherwise, yes. If we assume most of the water is still inside the plant it will take some time to cool.
The best chance would probably be for some dry seeds.