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Finally got my day lillies to flower this year with loads of potash, but should I cut back all the spent foliage now or leave it to over winter? I usually take all foliage on my perrennials down this month - just wonder if this is a bit too early.
Leave it till it's gone completely brown and then just pull it off by hand.
I quite happily cut back foliage of day lillies now.
I am sorry but I am getting really confused and think I have messed up again my book said that day lilies were herbacous perennials so I thought that this means that they die back and that the leaves go brown and you need to remove them. Why do you need to remove them? Should they be evergreen and have I messed up by trimming them back. I need help
Christopher thank you for explaining that I am new to gardening and still trying to work out the difference between text book advice and the wisdom of experienced gardeners. Could I trouble you for some more advice I still cannot work out the difference between tender perennials and half hardy perennials.
Hi, I find that in North Wales they usually go brown and I remove the leaves. I will move some tomorrow so I will trim the leaves back then.
Christopher thank you for that some books call plants tender and others half hardy and I was getting so confused. I am trying to grow lilies but some seem hardy like day lilies but others like calla lilies are half hardy, is there an easy way to work out which is which?
My hemerocallis thrive in my clay soil but last year the deer came into the garden and took the heads off every single one. I have some really unusual varieties so it was v upsetting. I have now lifted them all and replanted in a raised border close to the house our of reach of deer. I tend to leave them to die down before cutting but I need to clear some space to plant tulip bulbs so am going to risk cutting them down now.
i do the same as Obelixx leave them and pull them when they are totally brown. They grow really well in my clay soil, but not flowered too well this year. They probably need dividing, I am never that successful with dividing plants, always end up with lots of roots and not soil!!! However i do keep trying, but will also try the potash next year.
Thanks for all the information and advice.. Really helps us inexperienced gardeners.
Hemerocallis need to be divided regularly or they become congested and lose flower power. They are very forgiving and can be done now.
Water the clump thoroughly and leave for an hour then dig up as much as you can and split it with your spade or a bread knife depending on how big and thick the roots are. Replant in small clumps in the ground or in pots if you want spares for swaps or insurance. Trim the leaves back to about 6" to reduce moisture loss while the roots recover.
Great to have your advice Obelixx. will try that and the clump is really quite big, but not many flowers this year, so that must be problem. Thanks
I do as obelixx does, wait until they come off clean with a sharp tug, if they don't come away easily, I leave them a while longer and try again.
I agree too with Verdun's point about "latin" names. Once you know the basics you'll get the hang of them.
Every plant only has one "latin" name but might have lots of "common names" and some plants have the same "common names" eg both cistus and helianthemum have the common name " rock rose" neither are roses and the two plants are completely different.