My answer regarding plants to a person:
First of all, I recommend this post about plants: http://www.abolitionistapproach.com/a-frequently-asked-question-what-about-plants/
It shows that plants are not sentient and they don't feel pain and suffering.
If you still think that plants are consciousness, just like we are and all the other animals are, then avoid killing them. You don't need to. See the paragraph further down.
If you kill and eat cows - then you kill an innocent and conscious cow; and in total you consume more than 10 times more plants are consumed (the food of the cow) compared to the amount of plants you would have had to consume if you ate a vegan diet. This is also why we will eliminate starvation and poverty if everyone eats a vegan diet: http://www.youtube.com/watch?v=Fws0f9s4Bas
To quote Philip Wollen: "Poor countries sell their grain to the West while their own children starve in their arms. And we feed it to livestock. So we can eat a steak? Am I the only one who sees this as a crime? Every morsel of meat we eat is slapping the tear-stained face of a starving child. When I look into her eyes, should I be silent?
The earth can produce enough for everyone’s need. But not enough for everyone’s greed."
Second of all, if you think that plants are sentient beings, think about the following [a quote from another person]:
First off you don't kill plants. (..) If you eat an apple does the apple tree die?
You throw the apple seeds into the ground another apple tree may sprout. Where is the killing?
Do you know that if you planted a carrot top into the soil it will start growing again. Although you won't get a full grown carrot but it does grow.
The only plants you actually "kill" are then ones you need to uproot the roots for.
Take a look at a grain or legume field a soy, rice or wheat field. They are brown when its ready to harvest.
Thats because the plant is dead. I was a part of a seed conservation project.
You cannot conserve seeds from a live plant. Lets take soy. If you plucked the edmame the green raw soy it will rot in some time. Very rarely does it become hard. You have to wait for the plant to die. During this process the seed/legume produces enough phytic acid to protect it and becomes dry natural. Such seeds/legumes stay for years without getting spoiled.
Then plants and humans/animal have a symbiotic relationship. Plants can't move. They need external
help. that is why they produce nectar so they can attract the bees and butterflies that help them cross pollinate the flowers so they can reproduce.
Seeds that fall to the ground from overripe fruits or other plants do not grow into a tree. Because the "parent" plant shade and roots does not allow it to grow.
A human or an animal has to eat that fruit and disperse it far enough so it can grow.
This is how all natural fruit groves have come into existence.
A study found that 80% of all trees were planted by squirrels. They store nuts for winter and then they forget where they have stored it, when monsoon comes these nuts grow into trees.
So that you are killing any plants is just a myth .
If you are concerned about carrots then you can follow Jain Philosophy, Manish Jain Can, help you more with this.
Donald Watson was inspired by Jain philosophy of Ahimsa and Veganism is based on it.
They don't eat carrots, potatoes, and other roots vegetables Manish can help you with what to avoid and what are the alternatives.