I have a lot of Celery which has, I assume, bolted because of the very rainy season. All have flowers. Can I harvest them for soup? The stalks are rounded and not cresent shaped, but fairly thin.
Yes, there are many people that simply harvest the bolted celery and chop it up for use in soups. Generally, bolting is caused by too much heat (which many of us have had) rather than rain. Here is more info: https://www.gardeningknowhow.com/edible/vegetables/vgen/what-is-bolting-what-it-means-when-a-plant-bolts.htm
I am growing celery in a greenhouse. The plants are large and very green but instead of several large stalks, there are lots of small ones and they are bitter. I have never grown celery, so I don't know what or if it should look a little different or not. I have read about blanching and will try that. I guess I want to know how do I make it look like celery or should I care?
Making it look like the celery you see in the store is tricky. Celery is picky and for the most part, if it is growing for you, then you should be happy. Typically, outside of is very narrow ideal growing conditions, you can expect smaller stalks and poor head formation (which is what you are seeing). Blanching will help with the bitterness. Celery naturally is very bitter so blanching will help to reduce this.
These articles may be helpful to you:
https://www.gardeningknowhow.com/edible/vegetables/celery/tips-on-how-to-grow-celery.htm
https://www.gardeningknowhow.com/edible/vegetables/celery/bitter-tasting-celery-stalks.htm
I have a few celery plants and the leaves started to curl up and now the leaves have some white parts. They have stopped growing so I would like to know what I can treat them with to prevent this from recurring. Down by the roots seems to be light brown and the stems are soft.
It could possibly be Apium Virus Y. There is no cure for this. Here is more information on it:
http://www.ipm.ucdavis.edu/PMG/r104101111.html
Here are some other issues that could be causing the problems:
http://www.ipm.ucdavis.edu/PMG/selectnewpest.celery.html
My celery always comes out tall and skinny in the stalks. I have tried growing it with and without a tube covering and it doesn't make any difference. I have found that after a light frost here in Ohio the celery is very sweet and delicious. If I could only figure out why the stalks are always skinny it would be great. Any ideas?
Have you read our article on growing celery? That has some good tips for growing celery: https://www.gardeningknowhow.com/edible/vegetables/celery/tips-on-how-to-grow-celery.htm
I have cut all the celery ribs from the bulb and have it in a bowl with a small amount of water. It has started to make a sprout. Should I plant it outside now? Please advise me what to do.
These articles should help: https://www.gardeningknowhow.com/special/children/growing-celery-with-kids.htm
https://www.gardeningknowhow.com/edible/vegetables/celery/tips-on-how-to-grow-celery.htm
I normally don't grow celery but started some from seed this year. Overall it was really healthy with very gigantic stalks. On harvesting I'm finding some of the plants have hollow stalks. Any clue as to why?
The hollow stalks could be an indication of insufficient nutrients and water.
Celery needs regular fertilization and the addition of compost is beneficial. It is also shallow rooted and requires regular watering. Here is growing information: https://www.gardeningknowhow.com/edible/vegetables/celery/tips-on-how-to-grow-celery.htm
I have read articles on how to plant celery but not how to plant self blanching varieties--the method used, etc.
quick answer, the same way you plant regular celery...:) This article should help answer your questions: http://www.harvesttotable.com/2009/01/how_to_grow_celery/