124 



Greenliou'ie and Stove Plants. 



they should each spring require pots 2 or 3 

 inches larger until they get into such as 

 are 18 or 20 inches in diameter ; never in 

 potting attempt to disturb the roots further 

 than taking away the drainage crocks. 

 As they get large weak manure- water in 

 the growing season will assist them. The 

 plant will sometimes keep in a healthy 

 condition for eight or ten years, but, it 

 oft€ner goes off at the roots before this age 

 is reached, -H-hich keeps it scarce. 



Insects. — This Cordyline is not usually 

 much affected with insects, but red spider 

 and thrips sometimes attack the leaves, 

 getting on the undersides ; these must be 

 sought for and at once removed by spong- 

 ing. 



CORONILLA. 



The greater number of these plants are 

 hardy, but a few require greenhouse treat- 

 ment, and are sufficiently distinct from most 

 other things to deserve a place. They are 

 increased by cuttings in the same way as 

 advised for Croweas, which see. 



The following are the best for pot cul- 

 ture : — 



C. glauca. A yellow-flowered species 

 from the South of Europe. It blooms in 

 summer. 



C. glatica variegrita. A variegated form 

 of the above ; flowers and general character 

 in other respects similar. 



IxsECT.s. — For aphides fumigate, and 

 syringe freely if red spider aj^pears. 



CORREA. 



Tire varieties of these evergreen green- 

 house plants mostly grown are hybrids, 

 raised by crossing the New Holland or 

 New South Wales species, the best origi- 

 nating from the scarlet-flowered C. speciosa 

 crossed with the green-flowered C. virens. 

 They vary in colour — from scarlet to deep 

 crimson in the tube, with a green or ligliter- 

 coloured band near the apex of the flower. 

 They are very free-growang plants, of com- 

 pact habit, mucli easier to manage than 

 many things that have been introduced 

 from the same countries. They are free 

 flowerers, different varieties coming in 

 bloom from Apiil until the close of the 

 year, individually lasting in flower for two 

 or three months in succession. The flowers 

 are tube-shaped, about 2 inches long, hang- 

 ing from a stalk produced from the mature 

 growth. Why these Correas are not more 

 grown for conservatory and general decora- 

 tion seems unaccountable, as they have 

 much to recommend them for such pur- 

 poses, not tlie least of Avhich is their ability 

 to bear, whilst in flower, being placed in a 



more confined situation, with a less amount 

 of light than many subjects would stand 

 without injury. The absence of these and 

 a number of other things that, when well 

 grown, are both very handsome and also 

 distinct, can only be attributed to fashion, 

 the infectious influences of which are very 

 often as apparent in the plants we grow, as 

 in many other matters. This, and the too 

 general disposition evinced to grow sub- 

 jects that are difficult to manage, shuts out 

 from general cultivation in our greenhouses 

 many plants that might with advantage be 

 much oftener met with. 



The Correas, being comparatively strong 

 rooters, Avill succeed potted in either peat or 

 loam, but, where the former can be had in 

 good quality it is preferable ; it should not 

 be used too fine, and ought to have added to 

 it a fair quantity of sand, so as not alone 

 to ensure porosity when the plants are first 

 placed in it, but to maintain this condi- 

 tion for years, as with ordinary care they 

 will last long. They should never be sub- 

 jected to any reduction of the ball, oi 

 shaking out process, consequently it is 

 necessary in the first iiLstance to prepare 

 the soil so as to ensure its lasting capa- 

 bilities. 



All the diff'erent sorts strike from shoot- 

 cuttings, but we have not found them so 

 certain in rooting as many things unless 

 when taken off with a heel ; to obtain cut- 

 tings in this condition a plant should have 

 its branches all, or in part, cut back in 

 February, immediately placing it in a little 

 warmth to cause it to break more freely. 

 By this means cuttings about 3 or 4 inches 

 long may be had by the middle of May ; 

 put these in an inch or two apait in 

 pots filled wdth sand, placing them in an 

 intermediate temperature, kept moderately 

 close, moist, and shaded ; they should be 

 rooted in two months, when give more 

 air and reduce the shading ; move singly 

 into small pots and encouiage growth by 

 keeping them moderately warm until the 

 end of August, in the interim pinching out 

 the points. Keep through the winter at 

 about 45° in the night, and towards May 

 they should bear mo'vdng into 4-inch pots, 

 using soil such as above indicated ; during 

 the growing season let them be a little closer 

 with an atmospheie somewhat more moist 

 than needful for larger stock, syringing over- 

 head daily. Again towards autumn keep 

 cool, and the atmosphere drier, and winter 

 as before. Correas do not make so much 

 root as many hardwooded plants, there- 

 fore it is not advisable to attempt giving 

 them more than one shift during the year. 

 It is best to re-pot them about the middle 

 of April. If the pots are well filled with 



