BOOK XVII. xiii. 67-xiv. 72
discovered of cutting off slips and planting these, a plan first adopted with elders, quinces and brambles, which were planted for the purpose of making a hedge, but later it was also introduced as a way of growing trees, for instance poplars, alders, and willow, which last is even planted with the cutting upside down. Suckers are planted out at once in the place chosen for them to occupy; however, before going on to other classes of plants it is desirable to speak of the management of a nursery.
Management of nurseries, Growing from seed.XIV. For, with a view to a nursery it pays to chose soil of the highest quality, since it often comes about that a nurse is more ready to humour young things than a mother. Consequently the soil should be dry and sappy, and well worked with a double mattock so as to be hospitable to the new arrivals, and it should resemble as closely as possible the earth into which they are to be transplanted; and before all the plot must be cleared of stones, and fenced in well enough to protect it even from the inroads of poultry; and it should be as free from cracks as possible, so that the sun may not penetrate into it and scorch the roots. The seeds should be sown eighteen inches apart, as if the plants touch one another, besides other defects they get worm-eaten; and it pays to hoe them and weed them fairly often, and also to prune the seedlings themselves when they branch and accustom them to endure the knife. XLVIII.2,3.Cato also recommends erecting hurdles supported on forked sticks, the height of a man, to catch the sun, and thatching these with straw to keep off the cold; and he says that this is the method for rearing pear and apple seeds, and pine cones, and also cypresses, as even they can be grown from seed. Cypress seed consists of very small grains, some of
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