I have several fall asters that were so beautiful this year, seems like I have read somewhere to cut these back after blooming, but of course I can't find where I read this now.
Should they be cut back and if so how much?
Well I dont know what happens in Ky over the winter but I cut my asters down to about 6 inches after they have bloomed (or after it snows/freezes!) That catches the snow and in the spring I trim the stalks right to the ground.
Asters are very similar to mums. I do the same for asters as I do for mums. Trim them 2-3x and then leave them alone from July onward. In the fall after they bloom, trim them back to like 6-8" and mulch them good.
Janet, I got seedlings all over the place too, if you are intersted.
They are purple and I will have to look and see if I have any babies from the white aster. Too bad I didn't know last weekend then. I did pull up some larger seedlings when I was trying to pull out a plum tree rootball.
I will look around this weekend and let you know more then. Remind me please!
Wonderful! I love purple and I always need more white in the garden! Thanks so much for the offer! I seem to see a lot of the blue and pink this time of year here... about three feet tall or maybe more and have flowers that are three or four inches across, they are just beautiful..I have never seen them for sale, just in peoples yards...I may have to stop and ask for seed sometime...they will most likely think I am crazy!
LOL but that is okay too.
I looked in the yard tonight. Found some seedlings that I can send you. The white one, I only have like one seedling. I can divide that plant if you want. It is pretty big. Do you want that then too?
I have always asked people and they don't seem to mind. Yes, we are crazy but it keeps us out of other trouble, LOL
I cut mine back to the ground almost after they are done..and then cut them back by about half when they are about eight inches high, twice while growing..they are pretty and full in the fall after doing this..I only have the yellow, but I love the show they put on...
I'm sure it doesn't hurt to cut them back in the fall, but I leave most of my perennials till spring to cut back. This way they can self sow, the birds can eat the seeds, and I can enjoy my winter garden on those special days of ice and frost that turn everything into a crystal fantasy world.
You can dig up a piece of aster root from the outside of the plant after they bloom, cut back the foliage and replant. This is how I got the wild asters that we have here to grow in my garden. In a garden asters will self sow, but in the wild there is so much competition from grass, etc. digging a piece of the root is a surer way to get one going.
Carol, I have been meaning to tell you how much I have enjoyed the asters you sent me last year! They have bloomed all year and just keep getting more blooms...I could not remember who sent them so I could send a picture to show them off...here is a picture I took when they began blooming...both the blue and the white have been going strong!
Here are the blue in June.
Actually I have about 4 or 5 Asters for about 2 years now. I cut mine back in the spring. I leave them to catch snow for that is supposed the best winter mulch correct?? Mine come back or have every year since I first planted them in the fall of 2005. i pinch them back once a week in June and first couple weeks of July and get loads of blooms that don't need to be staked.