Worst perennial to cut down
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floral_uk z.8/9 SW UK
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cutting down 'spent' perennials
Comments (14)Like others, I do a good fall clean up since it really does extend the gardening season. And then I have lots of material to add to the compost pile to begin the cycle for next season's batch. I like to start out with a clean slate in the spring so I can hit the ground running - and not have to spend time being careful about cutting slimey dead material away from around the emerging new growth. I rely on snow cover for insulation rather than spent foliage - and for the most part, we do get adequate snowfalls. Can remember only once in recent times when winter brought extended periods of -30 with windchills to -50 and no snow cover at all. No amount of leftover foliage could have saved some things that year. We don't know what perennials you have, but balloon flowers, hostas, tall bearded iris, Siberian iris, daylilies, Oriental & Asiatic lilies, nepetas, Veronicas, salvias, sedums (but they're nice to leave for winter interest), phlox, peonies, baby's breath ... and the list goes on, can all be cut back/down in the fall without harm....See Morecutting down perennials for fall clean-up
Comments (15)I usually leave everything until the spring, but last spring, I promised myself that I would cut down as much as possible in the fall. I find that I had too much to do in the spring and it all looks so ugly until I get it cleaned up. I am wanting to try for the best, prettiest spring garden that I have had so far. Plants that I have and will leave until spring, are what has already been mentioned. I have lost Buddleia in a year I cut it back in the fall. Perovskia, lavenders, ornamental grasses and anything that is only hardy to my zone 6. I used to leave plants to overwinter for the birds, but I watch the birds all the time and never see them go near the dead perennials after the fall anyway. I don't think we have that much that interests them. I have no experience with cutting back plants that are still green/growing. I did however purchase a Hardy Hibiscus last year from Mahoney's in the fall and they had already cut them all back to ground level in their pots, before a freeze. pm2...See MoreCutting down perennials
Comments (6)It's not necessary to cut down annabelles in fall. This is a very easy plant to grow. I have one which I grew from a cutting. Also had one at my previous home. This particular shrub will produce more stems from its base in the spring. But some of it's old stems will also produce leaf buds in the spring so best not to cut this plant down completely lest you terminate these buds. It's not the kind of hydrangea that branches out like a limelight (which I also have). Oh and these too bloom on new wood. So leave it be till next spring. -- Marric, your suggestions are right on. Now for general practises on hard pruning perennials... It all depends. For instance herbacious perennials - sure remove the top as close to the ground as possible. These do die out anyway and looks unsightly for some of us. So these are your irises, hostas, astilbes, etc.. For decidious types, I would rather wait till the next spring to do any prunings. And I am very selective on which kinds of perennials to do hard prunings which is what cutting close to the ground means if applied to decidous shrubs. I wait till the following spring because the stems and foliage provide protection and insulation to plants. For instance lavenders benefit from having its stems and foliage intact. as snow falls and form pockets of insulation, it's very core remains protected from the worst of winter. however, I won't do hard pruning on my limelight hydrangeas. I am selective on which stems to cut as I might destroy the seasons buds. I do the same with the lilacs. For roses, I never cut close to the ground unless absolute hard pruning is necessary (like if ramblers went wild) I normally leave a foot or more of the rose stem and wait till the following spring to prune further and only after I spot the stem buds. For clematis, same thing, wait it out till the following spring. So I hope you understand what I am saying, be careful and select your plants carefully before doing any hard pruning. Dying foliage although unsightly actually helps to protect plants. Ianna...See MoreCutting back perennials for winter?
Comments (3)I won't claim to know who is right in this matter, but can see that the 2 of you see things differently. She sees a winter mess as opposed to a neatly mulched area all ready for spring. (I'll bet she is an A personality, like I would 'like' to be.) You see an big expanses of mulch, with no interest. My beds usually don't get the cleaning and mulching I would like for them to get, and I would like them all cleaned up...like your co-worker. I 'think' it is in the irises best interest to cut them back (I could be wrong here)as dead matter around them can promote ill health. You might search or ask at the Iris Forum. It may be a bit late to do that in your zone, but again not sure. I hope to do several of mine yet within the next week, as the temps are to be 60 for the next 7 days! I do suggest leaving the lavender and thyme alone, as it comes back I think to a large degree on the old growth, besides having winter interest. I imagine by now the coreopsis (and maybe some others) have reseeded like crazy, and will be everywhere next spring. Mine reseeded this fall, and is now everywhere! If it was me, I would cut it off, but that is just my 'preference.' It is best to cut any mums that were planted this fall. If the stalks are left, they will blow and cause them to become loose in the soil with the many freezes and thaws, and they will freeze out. Best too to scoot a little extra mulch up around them too. I'd think that the taller sedums, may do similar things too if not established well. For winter interest, could you add some accoutrements (sp)? Bird feeder on a shepherd's hook, or even something placed on the ground? Little sign for the season? I have the sweetest concrete Santa, but know you might risk having something like that stolen. Possible some geodes, or other rocks? Some plastic or silk poinsettia?....just kidding on that one! If it makes her feel good, why not let her go ahead, but ask that she leave the thyme, lavender, and the iris until you can check on them. Good luck, I hope you can come to a happy compromise. Sue...See Moreperen.all Zone 5a Ontario Canada
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