Do not be discouraged at the rather slow growth during the hot days of July and early August.  You have only to keep the ground clean and mellow by frequent hoeings until the nights grow cooler and longer, and rains thoroughly moisten the soil.  About the middle of August the plants should be thrifty and spreading, and now require the first operation, which will make them crisp and white or golden for the table.  Gather up the stalks and foliage of each plant closely in the left hand, and with the right draw up the earth round it.  Let no soil tumble in on the heart to soil or cause decay.  Press the soil firmly, so as to keep all the leaves in an upright position.  Then with a hoe draw up more soil, until the banking process is begun.  During September and October the plants will grow rapidly, and in order to blanch them they must be earthed up from time to time, always keeping the stalks close and compact, with no soil falling in on the developing part.  By the end of October the growth is practically made, and only the deep green leaves rest on the high embankments.  The celery now should be fit for use, and time for winter storing is near.  In our region it is not safe to leave celery unprotected after the tenth of November, for although it is a very hardy plant, it will not endure a frost which produces a strong crust of frozen soil.  I once lost a fine crop early in November.  The frost in one night penetrated the soil deeply, and when it thawed out, the celery never revived.  Never handle celery when it is frozen.  My method of preserving this vegetable for winter use is simply this.  During some mild, clear day in early November I have a trench ten inches wide dug nearly as deep as the celery is tall.  This trench is dug on a warm dry slope, so that by no possibility can water gather in it.  Then the plants are taken up carefully and stored in the trench, the roots on the bottom, the plants upright as they grew, and pressed closely together so as to occupy all the space in the excavation.  The foliage rises a little above the surface, which is earthed up about four inches, so that water will be shed on either side.  Still enough of the leaves are left in the light to permit all the breathing necessary; for plants breathe as truly as we do.  As long as the weather keeps mild, this is all that is needed; but there is no certainty now.  A hard black frost may come any night.  I advise that an abundance of leaves or straw be gathered near.  When a bleak November day promises a black frost at night, scatter the leaves, etc., thickly over the trenched celery, and do not take them off until the mercury rises above freezing-point.  If a warm spell sets in, expose the foliage to the air again.  But watch your treasure vigilantly.  Winter is near, and soon you must have enough covering over your trench to keep out the frost—­a foot or more of leaves, straw, or some clean litter.  There is nothing better than leaves, which cost only the gathering.  From now till April, when you want a head or more of celery, open the trench at the lower end, and take out the crisp white or golden heads, and thank the kindly Providence that planted a garden as the best place in which to put man, and woman also.