How bad will these types of flowers spread?

I bought a bag of Butterfly %26amp; Hummingbird Attracting flower seeds. What I would like someone to tell me is if these are the types of flowers that will spread all over my (and my neighboors') yard. Here's the seeds:





Baby's Breath


Zinnia


Chinese Forget Me Not


Bachelor Button


Cosmos Sensation


Candytuft


Shasta Daisy


Black-Eyed Susat


Alyssum


Scarlet Sage


Foxglove





Also, are these flowers ones that will come back year after year?

How bad will these types of flowers spread?
Cosmos are self re seeding and will spread , Black eyed susan will spread. What zone are you in? This will determine if they are considered hardy in your zone. Tender perennials are plants that in Southern zones are usually hardy, but in more temperate climates will only be annual. Foxglove, Forget me nots, and Baby's Breath(Gypsophilia) are generally perennials in all zones.You will have Cosmos re seeding every year, but not the same plants coming back.Black Eyed Susan can become a nuisance, seeding itself every where, becoming invasive.
Reply:Bachelor buttons spread to a degree, but they're not that invasive. The others are all fine. The zinna, cosos, candytuft, alyssum will last one year. The foxglove, bachelor button, daisy and black eyed susan should come back. I'm not sure about the scarlet sage or chinese forget-me-not, I don't recognize their names as flowers that I have seen or planted.I think your butterfly garden is pretty safe not to get out of control.
Reply:The foxgloves are biennials - they make a plant the first year amn may not flower until the next. then they will seed and new plants will appear in surprising places, but they are easy to pull out if you don't want them. Cant tell you awhat the others will do as it could depend on where you live.
Reply:some will depend on your Zone and how good your ground is. My last place I culdnt get Cosmos to grow,here it self seeds all over the place Forget me nots will also take over by slef seeding if its happy and Black eyed Susan is a perennial that spreads both by self seeding and by spreading by runners. Never grew Baby's Breath...Zinna like to self seed, as do bachelors buttons and daisys Foxgloves have to really like their soil to ..
Reply:Naa, won't spread. Not absolutely positive, but they all sound like annuals - - this year only unless you save seeds for next year. They will create seeds. If have concerns, pluck off the dead flowers %26amp; dispose of them or save seeds for next year. If saving seeds, make sure they are thoroughly dried out, zip lock bag %26amp; label with marker what is in it %26amp; what color.





The best thing I ever did was buy a perennial book for plants, trees, flowers that return each year. Then periodically I add annual seeds of different flowers in front %26amp; around my permanent plantings. I marked each item in that book for my zone. I can not pick %26amp; choose for sun/shade, height, color and when %26amp; how long they bloom. I also created my yard on a graph paper with each square as a foot. This helped over the years for fencing, plantings, fountain, etc... Each perennial I marked a number on my 'blueprint' and the explanation of its name, etc.. on the back for future use.





Lot of work, but it reduces remeasuring over the years and moving some plants again and again.





I got myself on a catalog mailing list through Gurney's, Burbee's, etc... which allowwed additional options other than what is being sold in my city only. Prices was cheaper, too.