540 General Results of a Gardening Tour : — 



botanic garden, by Mr. John Jones of Mount Street, Bir- 

 mingham. We were not surprised to hear the old objections 

 to iron and copper, of rusting and poisoning the plants, and 

 contracting and expanding, and thereby breaking the glass ; 

 but we had only to refer to the houses at Woburn Abbey, 

 and other places, where the copper sashes of Mr. Jones have 

 not been painted at all, at any period of their endurance ; and 

 where, during the last three winters and summers, not a single 

 pane has been broken by either the frost or the heat. "With 

 equal confidence can we refer to the immense iron houses 

 erected by Messrs. Bailey of London, for Mrs. Beaumont, at 

 Britton Hall. We have strongly recommended Mr. Dodd, 

 gardener to Sir James Graham, at Netherby, to adopt me- 

 tallic curvilinear houses, and hot water, in the erections 

 which are about to be made in the kitchen-garden there ; 

 and we trust that he will not forget our recommendation. 



As Points of Culture and Management in Hot-houses, we have 

 seen reason for recommending the application of the principle 

 of giving all plants a winter, or period of rest, once a year, 

 at the time when they are, from habit or circumstances, in the 

 most dormant state, instead of keeping them, pine-apples and 

 bulbs more especially, continually growing. The best dormant 

 season for pine plants is during the three winter months, unless 

 for such as are intended to come into fruit, or to ripen their 

 fruit, at that season. The best season for ornamental plants 

 in pots is when they have done flowering, or perfecting their 

 seeds, if they should produce any. We have not time to 

 apply this principle ; but a little reflection will convince every 

 thinking gardener that it is one of the most important which 

 can enter into his consideration, for the flowering and conse- 

 quent fruiting of all plants, and especially of plants in houses 

 or in pots. The great success of the best pine-growers de- 

 pends materially on the application of this principle ; and 

 not less so, the admirable manner in which epiphytes are 

 flowered by Mr. Perrin, gardener to Richard Harrison, Esq., 

 at Oakland Cottage, who is deeply impressed with its im- 

 portance. Succulents, heaths, and camellias, flowered by 

 other gardeners celebrated for growing these plants, may 

 be referred to as farther illustrations. The practice of 

 high potting in the culture of heaths, and other hair-rooted 

 and wiry-wooded Cape shrubs, was, we believe, first intro- 

 duced by Mr, Macnab of the Edinburgh botanic garden. 

 It has been adopted with admirable success by Mr. Bow, at 

 Lower Broughton, near Manchester, one of the very best 

 cultivators of heaths in England ; it is also practised in the 

 botanic gardens of Manchester and Liverpool ; and it is one 



