How long to sprout?

this is my first time, I sowed May 4, and not a sign.
I hope they are going to come up as I want to use them for companion planting with some vegetables.

thanks,
ellen

Good luck! Jean

I'm growing 2 species of Tanacetum I got from a trade, Tanacetum parthenemum (feverfew) and Tanacetum niveum (don't know common name. These have white flowers and are not supposed to be invasive.

Tanacetum niveum is commonly called white or silver tansy or snow daisy & looks much like a cushion mum, with single white daisy-type flowers & yellow centers. Two of the most common cultivars are 'White Bouquet' & 'Jackpot'. As with all tansies, they self-sow freely & are considered aggressively invasive.

Ellen, forewarned is forearmed!

That being said, I agree with organic greenjeans - forewarned is forearmed! I grow it, but then, I grow mint, too (mint repels rodents). Perhaps I'm just plumb crazy, LOL.

Caryl

I used tansy along with a couple other herbs in insect repellent kerchief collars for my K9 friends (it's not recommended for cats)& it worked well for us with no side effects. As with people though, not all animals can tolerate certain herbs, so it's good to test on a small area before using on a larger scale!

Anyone growing one of the species of tansy shouldn't panic over what's been said about it. Just be aware of it's desire to take over the world & diligent in your refusal to allow it to do so! By that I mean never, ever, ever allow it to go to seed, be fanatical about deadheading this one.

And as northerner shared about what (I'm assuming) was T. vulgare busting out of it's sunken pot, even deadheading won't be enough! The mattes of roots this plant forms are formidable; that's what I'm doing battle with in the neglected patch of ground it's taken over here. I may even bring in some strong young'uns to help with it this year, because I think the stinker's got me beat!

Happy gardening, good luck to y'all, & as always thanks to everyone for sharing so much valuable information!

A rampant self sower here, but if you take time to weed regularly you shouldn't have any trouble pulling unwanted seedlings from inappropriate places. If you are a very casual weeder, you could end up with more white flowering plants than you had intended to grow.

However, I have personally seen feverfew sprouting from self-sown seed up to a half acre away from the originally planted parent plant. This in the very well tended gardens of a diligent weeder, & not to mention the many seedlings which sprouted in between.

So though your comment about us using terms too casually is also technically correct, I'd have to stand on my comments as common-sense seen it with my own eyes grow the stuff myself knowledge!

I received seeds in a newbie seed pack for fever few but have only had 1 sprout. Now I'm nervous about planting that single plant. I like the plant since it attracts bees but I really don't want to add anything invasive or unruly to my gardens.

Thanks for all the advice. I'll watch it more closely than I might otherwise have done.

Caryl