Weather is more fall like. Easier to want to work outside. Here is a start of a list of perennials and how and when to deadhead and cut back. I will post some every day till the list is done. Enjoy!

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image from mgnv.org 

      Good morning…. what a change we have had since Saturday.  Low or no humidity and the temperature was in the 70’s(20C) for the highs. It is to be like this all week.  All I can say is Enjoy and Stay safe.
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Australia family and friends are having this for their weather. Nights are warming up 50F(10C) highs of 66F(18C) but they are having 85% rain.  What I hear back from them is that there is rain, but it sometimes goes around them in Sale. It is now 1:00 AM Tuesday August 26 while we are at 10:00 AM Monday morning.  Stay warm, stay dry, stay safe. 

Here is the start of the perennial list of what to do with them.  Deadhead, cut back or leave alone. 
Perennial deadheading guide
Deadheading, or cutting off spent and dead flowers, is a great way to tidy up your garden. But there are other benefits, too: Cutting back at the right time and in the right way can help you prolong the bloom time or even get a second flowering out of many plants. Others will reseed all over the place if you don’t keep their spent flowers picked off. https://www.gardengatemagazine.com/articles/how-to/prune/perennial-deadheading-guide/

Plant name   Botanical name       Cold zones    Will it rebloom?      Tips
Astilbe           Astilbe spp. 4-8      No       Deadheading won’t stimulate more flowers so leave seedheads standing for late-season interest; when they look ratty, cut them to the ground
Baby’s breath          Gypsophila paniculata      5-8      Yes      Cut panicles of spent flowers to side shoots to keep this perennial flowering longer; shear stems to the ground after they finish to promote second, smaller flush of fall flowers
Balloon flower        Platycodon grandiflorus   4-9      Yes      Prolong bloom and keep the plants fresh by removing individual spent flowers; stems are tough — use small scissors or snips and dip them in alcohol to clean the sticky sap; reseeds
Bear’s breech          Acanthus spp.         5-9      No       Leave the spent flowers standing — they remain interesting for several weeks; later, cut them to the basal rosette of foliage if they look objectionable
Bee balm      Monarda didyma   4-9      No       Cut spent blooms back to side buds to prolong blooming; after it’s finished flowering, cut stems down to 4 or 5 in. to promote mounds of clean, healthy foliage; rarely reblooms
Bergenia       Bergenia cordifolia 3-8      No       Cut flower stems off at the ground after flowering to keep the plant looking tidy; will not reflower; rarely reseeds
Bellflower, peachleaf        Campanula persicifolia     3-8      Yes      Pinch off individual flowers as they fade; cut entire stalk back to within 6 in. of the ground when it’s finished to encourage rebloom; releases a sticky sap as you prune
Blanket flower        Gaillardia x grandiflora     3-8      Yes      Snip off individual flowers a few inches below the seedhead to prolong bloom; later cut stems to within 6 in. of the ground; stop deadheading in August
Bleeding heart, fernleaf   Dicentra spp.           3-9      Yes      Cut the flower stems down to basal mound of foliage after they’re finished to keep this perennial flowering into autumn; can reseed
Bleeding heart, fringed     Dicentra formosa   4-8      Yes      Keep up with removing spent flower stems down to the foliage and this perennial can continue to bloom into fall; does not die back like old-fashioned bleeding heart
Brunnera      Brunnera macrophylla      3-8      No       Cut flowering stems with small leaves down to 2 or 3 in. after they flower to prevent reseeding; leave basal foliage developing in the center of the clump; will not rebloom
Bugbane       Actaea racemosa    3-8      No       Leave seedpods on plant to add winter interest or cut them off to uppermost set of leaves, leaving as much foliage as possible to feed the plant; will not rebloom
Taken from https://www.gardengatemagazine.com/articles/how-to/prune/perennial-deadheading-guide/
Till next time this is Becky Litterer, Becky’s Greenhouse, Dougherty Iowa [email protected]  641-794-3337  cell 641-903-9365  Beckysgreenhouse.com  Facebook Becky Kerndt Litterer or Becky’s Greenhouse