ox EXrOSIXG GKEENHOUSE PLANTS IN SUMMER. 151 



pure white, and give a very pretty effect ; they are fragrant, too. It 

 is very handsome, and well deserves to be cultivated. Plants may now 

 be obtained clieap in the principal nurseries. 



Cekasus japonica, flora PLENA. — The flowers are like those of 

 the double dwarf Chinese Cherry, excepting that they are of a pure 

 white, and perfectly double. It was introduced to the Horticultural 

 Society's garden. It is quite hardy, and deserves to be in every 

 shrubbery. 



"Weigelia nosEA. — This most charming plant has proved to be 

 perfectly hardy, enduring the past severe winter in the open air without 

 injury, and is now growing luxuriantly. It will be one of the greatest 

 favourities. 



ON EXPOSING GREENHOUSE PLANTS IN SUMMER. 



It is a common practice all over the country to set greenhouse plants, 

 heaths, &c., out of doors during the summer months, without any pro- 

 tection whatever, eitlier to the tops or bottoms of the plants, under the 

 vain impression that the plants will be benefited by such treatment. 

 Plants, when fully exposed to the sun and air, after a time become so 

 dry as to nearly make it impossible to render tliem moist again ; hence 

 tlie scorched and stinted-looking plants which may be seen in summer. 

 The pots of plants should always be moist. Persons with common 

 observation will liave noticed tliat all the youngest and most tender 

 roots of plants always extend next to the pot ; consequently they are 

 the most liable to injury from any sudden check, occasioned by the 

 sun drawing all the moisture out of the pot, and, therefore, out of the 

 soil also. It is no uncommon tiling to see the soil q"iite dried away 

 from the pot, and when the water is supplied, it sinks down the outside 

 of tlie soil as fast as it can be poured in, and tlie soil inside is not 

 wetted in tlie least. How can any person expect plants to grow by 

 such unnatural treatment ? Besides, it is a great waste of time to be 

 so frequently watering, as is very often the case ; the whole morning 

 and evening are often spent in this way. If plants must be fumed out 

 of doors, they ought always to be plunged in some porous substance ; 

 although, at the same time, it ought to be something that will hold 

 moisture ; for instance, very rough peat, moss, or sawdust. I have 

 seen sand used by some, but I consider it holds the wet too much, 

 which is an evil almost as bad as the former. The pots should always 

 be placed on slates, or some other material that will prevent the worms 

 from entering, as they are great pests if once allowed to enter. They 

 should also be shaded from the sun with some light material, and pro- 

 tected from heavy rains. By following the above plan, a great deal of 

 time will be saved in watering ; and the plants, having a more natural 

 treatment, will present a more natural appearance. 



