I would wait for them to die back and then dig them up. I would inspect them closely for bugs, etc. They normally grow for 10 weeks after bloom so we are talking mid to late June most likely. I had some I thought were gone, the ground around them was like cement. When I tried to dig them up I discovered they were surrounded by Oak tree roots. Some had no growth on them and had sat waiting for several years. I stored them over summer in my garage and replanted them in the fall. They all bloomed In the spring and many multplied over winter. Replant them about 4-6 inches apart using about a teaspoon of bone meal under each one. I think you might be amazed at the results! John Va

I have a book on bulbs here and it says that the most prolific of daffodils needs to be divided every five to six years. Some daffs are slower to increase, in which case you can also just divide them every decade or so. I grow Mount Hood, this is the second year they will bloom and already the flowers on each bulb have tripled and there are bulbils in sight as well. I might have to divide mine every four years... I guess it is best that you keep a journal for your daffs and monitor closely how much they increase each year. If you have trouble seeing how more new growth could come up in the limited space between this year's growth, that would be a sign that it is time to divide. I can't find the bit about when to divide these, but I gather all bulbs are best divided during dormancy, which would mean any time between the moment the leaves fall off and the moment the ground freezes, although I think earlier is better. I think that fall is a bad idea because by then, the plant may have grown more roots that reach deeper, and it will be that much harder to lift them, plus the new root growth would be wasted and it wouldn't have enough time to regenerate properly by next spring. But this is just my admittedly not perfect logic speaking. I would try to do it as soon as the leaves fall off. That way, you do it before new growth starts but after the plant is done producing for the current year. It would then be about to start using its gathered reserves to grow new roots, so your newly transplanted daff would be nicely nestled into place by the time spring comes.

I had the same problem. I planted 100 Dutch master, huge healthy bulbs. The following year, only about 25 came back?? I posted here and someone said I should dig up and see what the bulbs looked like. A bug was eating them and that's why they were not blooming. There was a name for it, like narcissus fly or something like that. Maybe one of the experts will chime in and give you more precise info. It's really disappointing isn't it, I got blisters from planting all those daff's and most of them are gone. I won't plant in that bed anymore.

Rita, I look forward to seeing all your daffs and daylily blooms this year. I'm sure they will be beauties! I remember how much work you put into your gardens last year. Your daylilies, daffs and lupines. I was trying to clean up my front flower beds the other day when it was such a nice day and I spied some lupine foliage..Yeh! Don't recall what the plant ID tag said though. Maybe it's a bit early to start looking for any signs of foliage for a lot of perennials. See no signs of my coreposis coming back. Have a few daffs that are almost blooming and see signs of more bulbs popping through the ground. They could be either daffs or tulips. My Raspberry wine monarda, larkspurs, shasta daisies, oriental poppies are showing progress. This will be my first year having larkspurs and I hope it is many as has popped up. Surprized that the columbines haven't shown any signs of green leaves yet..maybe it's still a tad early. I did pull a lot of them up in the early Fall as they were reseeding everywhere. I'm anxious for Spring and Summer to come, although it means hard work but hopefully the fruits of our labor will be worth it all for the beauty it provides.