Note 161 — CHAP. XII. Of St. Foin.

There is a vulgar Opinion, that St. Foin will not succeed on any Land, where there is not an under Stratum of Stone or Chalk, to stop the Roots from running deep; else, they say, the Plants spend themselves in the Roots only, and cannot thrive in those Parts of them which are above the Ground. I am almost ashamed to give an Answer to this.

’Tis certain that every Plant is nourished from its Roots (as an Animal is by its Guts); and the more and larger Roots it has, the more Nourishment it receives, and prospers in proportion to it. St. Foin always succeeds where its Roots run deep; and when it does not succeed, it never lives to have long Roots; neither can there ever be found a Plant of it, that lives so long as to root deep in a Soil that is improper for it: Therefore ’tis amazing to hear such Reasoning from Men.

An under Stratum of very strong Clay, or other Earth, which holds Water, may make a Soil improper for it; because the Water kills the Root, and never suffers it to grow to Perfection, or to attain to its natural Bulk. The best St. Foin that ever I saw, had nothing in the Soil to obstruct the Roots, and it has been found to have Roots of a prodigious Depth. If there be Springs near (or within several Feet of) the Surface of the Soil, St. Foin will die therein in Winter, even after it has been vigorous in the first Summer; and also after it hath produced a great Crop in the second Summer.