Sorry for the delayed reply, but yes, Kalanchoes make flowers. K. blossfeldiana is referred to as florist Kalanchoe, known for its' prolific blooms. Not totally sure that's what it is, but if so, it would be likely to make flowers during the first half of the year, if it has enough light. If this is a landscape plant in Z9, it may be something else, not sure where Kal begins to be hardy, if at all. May be like Coleus, almost sure to die, roots and all, from one hard frost. IDK.

Non-native shrubs and plants like Fatsia japonica are often spread by people planting ornamental shrubs native to other countries in their gardens or yards. I would say the Fatsia japonica in your yard may have arrived there via berries. If the shrub you have growing in your yard is in fact Fatsia japonica, you may have noticed it producing berries that look like the ones in the picture on Wikipedia at the web address below: http://commons.wikimedia.org/wiki/File:Fatsia_Japonica_01_Helen_Fowler.jpg Birds or mammals will eat the berries of shrubs like Fatsia japonica, and then expel the seeds contained within the berries via their droppings/excrement in areas far from the original plant or shrub. Your shrub may have originated from a Fatsia japonica that someone planted in a garden within bird-flight distance from you. For more thoughts about native vs. non-native plants, check out the link below. My garden is full of native American plants that some gardeners would consider "weeds", lol! Here is a link that might be useful: Explaining WHY natives?!

Just a thought- if you have an air purifier you can take to work and set next to you that would be good. Even if it's an open cubicle at least some clean air will be next to you. Pothos and philodendron are a good idea. Floor plant would be a sanseveria, or peace lily, or a large split leaf philodendron would be neat.

this plant will make a lot will make a bazillion seed .. ... so the lesson there.. is do not let it go to seed .. whatever you decide to do otherwise.. keep reading ... also ..it is biennial ... so it was either there last year.. or it will even be bigger next year ... so you may want to work on removing it.. if its in a place you simply dont have room for it ... what surprised me.. is that it appears to have some health benefits.. but i dont graze my garden for such.. and leave it to you.. to do whatever pleases you ... one persons GIANT weed another persons salad buffet.. go figure.. lol .. ken flip to images side.. to see the monster .. third pic.. lol .. https://duckduckgo.com/?q=Burdock+&t=ffcm&ia=web