Archive image from page 16 of The culture of pot-plants in. The culture of pot-plants in rooms, greenhouses, & frames cultureofpotplan00davi Year: greenhouses ( POT-PLANTS IN ROOMS 5 a plant is not growing it needs only just sufficient water to replace any slight loss, and thus to prevent shrivelling of the tissues; any more will cause the roots to decay. The temperature of the water is a matter of some import- ance. It may sometimes be higher than that of the room— to gloxinias, for instance, it is often given higher—but if it is lower it is liable to interfere with the growth of the plants,
Archive image from page 16 of The culture of pot-plants in. The culture of pot-plants in rooms, greenhouses, & frames cultureofpotplan00davi Year: greenhouses ( POT-PLANTS IN ROOMS 5 a plant is not growing it needs only just sufficient water to replace any slight loss, and thus to prevent shrivelling of the tissues; any more will cause the roots to decay. The temperature of the water is a matter of some import- ance. It may sometimes be higher than that of the room— to gloxinias, for instance, it is often given higher—but if it is lower it is liable to interfere with the growth of the plants, and a check of any sort, besides being bad in itself, renders Fig. 2.—Plant kept too dry, the soil shrunk away from the pot, them peculiarly susceptible to diseases and the attacks of insects. If, therefore, the water is drawn from the tap, it should not be used at once, or some warm water should be added to it. Of course, this also applies to water taken from an outside tank. Rain water is the best for all plants. For some kinds, such as heaths, azaleas, and rhododendrons, it is almost essential, for company's water is generally hard, and the lime in it is most injurious to them, and may kill them. It may be thought that a little occasionally will do no harm, but a sprinkle of water should never be given to any plants. It is worse than useless, for it does not benefit any roots
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