User blog comment:Big plants fan/Plants vs Zombies Olympia Show!/@comment-5079138-20130324135111

3. To plant on plants, plant any plant that wants to be planted with other plants on a lane, then  scan the plant number in cheat engine but decreased by 1 (Plant number is what is that plant's position on almanac entry, example: peashooter is 1st, sunflower is 2nd), then remove the plant and plant another plant (not the previous plant), then scan that plant number (decreased by 1), keep planting other plant and scan the plant number that's decreased by 1 until you get 1 value. choose it, then go back to pvz, replace the plant with the plant you want to be planted another plant, go back to cheta engine, change the value to 33 (flower pot) or 16 (lily pad), then plant another plant on that plant, go back to cheat engine, restore the value to its previous value and done.

(Sorry this is the detailest one I give so it is very long)