Why does half the plant look burnt? It has done great for 2 years but this summer in Cleveland, Ohio we had some pretty high temps. Suddenly I noticed all 3 plants look like someone burned them but only half the plant. One day green, the next day burnt.
It sounds like they may have been affected by a fungus, possibly sooty mold. A fungicide will clear it up, but this late in the season, I would recommend just cutting off the affected stems and discarding them. The plant will come back fine next year and if by chance you do get the fungus again, you can use a fungicide at that time.
I purchased some summer blooming shasta daisies and planted them Oct 25 this year. Since they are not rooted in, can I cover them with a plastic pot to protect them from too hard of a winter or will this work as a disadvantage?
Actually, you should leave them be. The plants will naturally die back and go dormant for winter. You can, however, add a layer of mulch or leaves around the plant to help provide additional winter protection for the roots.
How much sunlight should a Shasta Daisy receive?
They like at least 5 hours of full sun a day. Less than this, they can survive, but you will see fewer blossoms.
I planted them last spring and they bloomed all summer. I cut them back in the fall and I'm anxiously looking for them to return. My other perennials are showing new growth. Did I do something wrong or is it too early for them??
while many shasta daisies are perennial in your zone you have planted an annual or a daisy not hardy so far north
I planted Shasta Daisy seeds in April (in southern California). I followed the directions and eight weeks later it looks like a thick carpet of grass and nothing else. What do Shasta leaves look like? The seed company showed me a picture that looked similar to the leaves I have, but I am still worried that the previous lawn has come back to life even after we killed it off and roto-tilled the area and waited a long time before planting. Should I give up and start all over?
Without a photograph, I can't really make a judgement call on what it is that you have. Here are some links that will show you what the foliage of shasta daisies looks like so you can make a determination:
https://pbmgarden.files.wordpress.com/2013/05/leucanthemum-x-superbum-shasta-daisy.jpg
http://www.cherrygal.com/images/ShastaInOctober.jpg
For more information on shasta daisies, please visit the following link:
https://www.gardeningknowhow.com/ornamental/flowers/shasta-daisy/planting-shasta-daisies.htm
Forgot to cut back shasta daisies after 1st frost. They are about 18 inches tall now. Can I still cut them back and have flowers in summer or let them go?
You may trim away any dead stems from the previous year. Cutting down the dead stems now will not impact growth this year.
For more information on the care of shasta daisies, please visit the following link:
https://www.gardeningknowhow.com/ornamental/flowers/shasta-daisy/planting-shasta-daisies.htm
This is my 3rd year at trying to get shasta daisy to grow in a spot next to the steps on my deck. It's on the south side, all sun. Everything else I grow in that bed is thriving but they keep dying. Any ideas as to why or what I should do or perhaps plant something else?
I have just a few questions to help pinpoint what is happening:
Are you growing from seed or nursery plants? If nursery plants, do they die shortly after being transplanted?
How were you watering them and does your flower bed have good drainage? Shasta is one flower that doesn't tolerate soggy roots. Barring that, I would review the following article on the care of shasta daisies to see if anything else might be amiss:
https://www.gardeningknowhow.com/ornamental/flowers/shasta-daisy/planting-shasta-daisies.htm
Nursery plants and they lasted most of the summer but never came back. although I did find a little sprout of one coming up. I water them every week at once depending on the rain fall.