Stems, seeds, root.
The historical records suggest that the cultivation of celery as a food crop is at least 3,000 years old. The celery was most probably cultivated the earliest in Egypt of the pharaohs. We also knew that the Chinese were familiar with this herb by the 5th century BC. Celery has been used as a food plant throughout history as far as we know, and the belief is that at different times in many civilizations the whole herb and the seeds were used as major herbal medications by people. Celery seeds are still used today as an herbal treatment for gout and different rheumatic complaints. The remedy made from celery seeds aid the kidneys in eliminating urates and other metabolic waste products that needs to be expelled from the body. The celery seed remedy also actively works to lower the general acidity in the human body. The remedy made from the seeds of the celery are also helpful in treating arthritis, this remedy helps the body in detoxifying itself and also boosts the circulation of blood to the joints and general musculature. The potent anti-septic action and mild diuretic effect of the celery seeds comes in handy in the treatment of many disorders affecting the human body. The remedy is very effective in treating cystitis and helps to disinfect the bladder and urinary tubules - aiding the body in detoxification and elimination of metabolic waste and other toxins. A juice mixture of the celery and organically grown carrot makes for a really nutritious and cleansing drink that is not only wholesome and nutritious but is also excellent for alleviating many chronic disorders affecting a person.
Celery is indigenous to Eurasia; it is also found growing in the wild in Britain and many of other countries in Europe. In the British Isles, the celery can be seen growing wild in marshlands along the Welsh and English coastal regions. These days, the celery is grown as a vegetable almost everywhere, the cultivated variety of celery is less potent in fragrance and aroma compared to the original wild variety of the plant. The normal time to harvest celery is from the middle of summer to the start of the fall season. The type of soils ideal for the celery is a rich moist soil, the plant also grows well at sites with good exposure to sunlight or sites with semi shade, and however, the plant grows best under some shade in the summer months. Saline soils are tolerated well by the celery and the plant often grows in marshland along the coast. While very harsh frost can damage the plants in the winter, the celery is considered to be a fairly hardy plant that is resistant to sudden changes in environmental conditions. The present cultivated variety of celery - A. graveolens dulce, as well as celery leaf - A. graveolens secalinum and the celeriac - A. graveolens rapaceum, are all derived from the wild celery. The celery has a potent aroma and is one of the most aromatic food plants around, the aroma is the strongest when any part of the foliage is bruised or cut. Celery can be grown along with other common vegetables in the garden, including plants like leeks, tomatoes, as well as French beans and brassicas - the celery grows well with these plants. The celery is principally propagated using stored seeds. These seeds can be sown in situ during the spring or in the fall. The way to assure germination when the supply of seeds is short is to use a cold frame to sow the seeds in the spring. Celery seeds can often harbor certain diseases that affect the celery, seed companies usually treat seeds before they are sold, however, if you decide to use your own saved seeds, ensure that only seeds from healthy celery plants is sown to assure the health of germinating seedlings.
The essential oil found in the celery was studied in extensive clinical researches carried out in Germany and China during the 1970s and 1980s. In these studies, it was found that the oil possessed a calming effect on the functioning of the human central nervous system and could be used to alleviate nervous disorders. On further examination, some of the chemicals in the essential oil were also found to effect anti-spasmodic, sedative, and anticonvulsant actions on the human body. The effectiveness of the oil in treating high blood pressure problems have been confirmed in studies conducted on the essential oil of the celery in the Peoples Republic of China.