You can do Shasta Daisy and Cone Flower in the fall for next spring growth. Not sure about he others.

Mike

cold should not be an issue for zone appropriate plants ...

the question would be.. whether there is enough season for them to mature enough to make it ...

and the other question is ... how you start seeds in august ... i wouldnt try it.. for wondering how i would keep a newly emerged seedling going.. in near 100 degree heat .. you dont mention if you are sowing in the ground or in trays .. etc ....

i highly recommend you try the winter sowing forum .... they sure make it sound easy ... but then.. they dont do it in august ....

ken

Thanks. I was going to put them in seed trays initially, then thin out and move to small pots, to potentially move indoors if not mature enough to handle the cold. It probably isn't worth the trouble.

Thanks. I will check out the winter sowing forum.

I second the winter sowing notion. Many perennials (and I don't know off top of head about ones you listed), will only germinate after a winter chilling period.

Winter sowing will be much easier, but if you're determined RESEARCH each one and decide.

I start my winter sow in the summer. I gather my containers, cut them and fill with soil. I collect my seeds from the garden and from friends. I tspe the packet of seeds on the side of the pot. When it is cold all I have to do is open the packets and spread the seeds.

I do this because after the holidays I do not want to see stores to buy soil. I am tired from the holidays and do not feel like doing all the prep gathering containers.cutting them. filling with soil etc.

This time of year is good for planing, preparing. You can see where you
want to plant and what you want to plant in what area, Mark your WS
container and mark the garden area where that container plants will go,

I gather my containers, cut them and fill with soil.

===>> potting media.. since you cant buy it in stores in winter.. right???

just for clarification for the OP ...

ken

Some seeds need warm, cold, warm to germinate and would benefit from starting now.

I gather my containers, cut them and fill with soil.

===>> potting media.. since you cant buy it in stores in winter.. right???

just for clarification for the OP ...

ken

Yes Ken fill with potting media,

But no not because I can;t buy soil in stores in the winter, It is because I am old and lazy and in the winter I do not want to lug bags of soil when we are at 10 degrees, snowing, slipping and sliding on ice getting to the store to buy dirt,

Lowes and HD sell soil all year along with houseplants in the winter, They even get a big shipment of succulent house plants in Jan.

It is so much easier to go outside and open the container sprinkle the seeds,,,,,,,run back inside,,,,,get a drink and sit in front of the fireplace.

Campanula, The one thing I will not do is sow seeds indoor. That is way to much trouble and I am very bad at that task. I like WS because I can let mother nature do all that watering and caring. I do not even cull. I take a hunk out break it into a couple clumps and drop them there I want and throw some soil on them.

I do not do winter clean up I do it in the spring. As I am cleaning up I have my WS bottle where I want the plant and drop them in the area after I clean the area. I kept thinking I would get volunteer Heuchlera but I learned if I put the seeds in WS it works but letting them plant themselves and direct sowing never worked for me. It could be my harsh weather but I think you just have to try everything until you get the results you want.

What Campanula (and others) have said. Basically, you just need to look to what the natural world is doing - it's been doing this stuff long before (and better) than when man got creative. Seedheads are drying now on plants...dropping on the ground...either starting to root now or waiting for the opportune time and environmental conditions. So you can do the same...depending on how much you want to "control" the process...

I only sow directly into the ground when I have heaps of self-saved seed. When buying from stingy merchants, I carefully sow in pots or modules...but leave these containers alongside the greenhouse for the majority of plants, keeping those sensitive to winter rains on a shelf in the greenhouse or in a coldframe or just under a transparent cover. For plants such as paeonies or lilies, which have a long germination cycle, I stash the pots out of sight and forget about them for a few years.

One of my worst habits is to re-use the pots and mix of germination no-shows, resulting in surprise appearances of previous 'fails' (sisyrinchium bellum recently arrived in pots of scented-leaf geranium cuttings).