Bought plant at Krogers. . . no instructions other than it was a Quince. Has light orange flowers on it.
This article will help you:
https://www.gardeningknowhow.com/edible/fruits/quince/growing-quince-trees.htm
Where can I buy via catalog a Chinese Quince tree and how is the quince fruit used?
This is a link but I don't know anything about the seller. To find recipes, type quince recipes into your browser.
https://www.gardeningknowhow.com/edible/fruits/quince/growing-quince-trees.htm
We removed quince and oleander from the backyard and today started to plant Pink Bower vine in their place. One hole has a red/white apparently healthy root from a Quince. Should I leave the root alone, hoping no more quince will come back, or should I try to remove the root?
If you have a few days, I would paint the root with Round-up and leave the hole empty for at least a week (to allow the herbicide to dissipate) to help kill off the old root just to be sure. If you do not have that much time, it should be fine to leave it. If it does start to regrow, remove the suckers and paint the cuts where you cut the suckers off with Round-up.
I have a 4 year old quince Cognassier monstueux De vranja given to me from France. It bears lots of large fruit but they have no fragrance at all. Why would that be please?
I am unable to find any information specific to this variety, but in general, quinces seem to need a certain number of years to fruit well, so perhaps you just need to be patient. Make sure it has lots of sun and plenty of water. This article covers the basics of quince growing: https://www.gardeningknowhow.com/edible/fruits/quince/growing-quince-trees.htm
We moved into this home 4 years ago and noticed a bush/tree growing under a 60-80 foot pine. It stands about 8-10 feet. We were told it to be a quince. This year it did not have any flowers that we could see like in the past but it does have small green quince on a low branch. Now that I have found it to be a tree, I would like to know how to trim it. There are many branches coming from the base. I assume I should take those out?
Here is a link with care information.
https://www.gardeningknowhow.com/edible/fruits/quince/growing-quince-trees.htm
Are these quince ready to harvest? They are all yellow and very heavy.
A fully ripe Quince turns completely yellow when ripe.
It also will have a strong sweet smell.
If mature they will snap off the tree easily, if they are dropping off the tree they are over ripe.
If you have to remove the fruit early due to early frosts, but the stems from the tree so you do not damage the branches.
Quince will ripen off the tree.
Here is a link with more information.
https://www.gardeningknowhow.com/edible/fruits/quince/harvesting-quince-fruit.htm
We have had the quince tree for about 4 years with no problems in previous years. They are now ripe and at least a quarter of the crop are split. I have searched web sites but cannot find any reason for the splitting. Can you help please?
From my research I found that heavy rains just prior to ripening can cause fruit to split.
Also and in correlation with this a Fire Blight or Leaf and Fruit fungus can be the problem. Specifically the Fabraea Maculata virus can cause leaf drop and fruit disfigurement.
Here are some links for you that I found that may help you determine the cause.
http://arnoldia.arboretum.harvard.edu/pdf/articles/2009-67-1-cydonia-oblonga-the-unappreciated-quince.pdf
https://extension.psu.edu/plants/tree-fruit/diseases/pear-diseases
https://www.gardeningknowhow.com/edible/fruits/quince/growing-quince-trees.htm