I have noticed in the past month that the leaves on my Montausk daisies have been turning yellow. Could I be watering them too much or watering them incorrectly, i. e. "black spot" on my roses? Thank You.
Plants can have yellow leaves for many reasons. It is kind of a general distress symptom, like fever is in humans.
Can you give us any other symptoms you might be seeing? Are you seeing leaf spotting or what is the pattern of yellowing you are seeing?
Here is an article on why plants may yellow:
There are still green leaves. Should I take them all the way down to the ground?
I always suggest leaving any green foliage. It is still feeding the plant. I also encourage leaving 5-6'' and making a collar of mulch with pine needles or oak leaves.
I have homework about a daisy life cycle and cherry tree life cycle. The stem growth of each one. Can you help?
These pictures may help get you started. (The flower pic is small but should give general idea): http://static.abcteach.com/content_preview/d/daisy_lifecycle_p-0.png
Why do my beautiful daisies have brown ugly leaves? Too much or too little water or fertilizer? Thanks!
The brown leaves could be just the natural aging of the daisies. The daisies also do not like to sit in soggy soil, so check to see if the soil is to wet. The ground should be well draining and dry slightly between watering. If the soil is to dry, you can also see leaves dying off. With the warm summer temperatures you may need to increase watering.
If you can use an all purpose fertilizer and give the plants a light feeding once a week while they are blooming.
Here is a link about care requirements.
I have sprayed my plants with Neem Oil. They are Daisies in a pot. I put it on my porch so it wouldn't get direct sunlight today. But I need to know, do I need to wash the oil off before I put it back in the sun?
No, leave the Neem Oil on the plant.
No need to wash the it off.
The bottom leaves could be just aging leaves or turning brown due to watering issues, or fungus.
Check to make sure the soil is not soggy.
If the browning leaves spread treat as a fungus. Neem Oil is a good treatment.
I live in Michigan so it gets quite cold in the winter months. I am just wondering if these plants will come back even after a cold winter.
They are hardy down to zone 4.