In potting delicate and sickly plants, (a few of which I had the good fortune to handle a few months since,) such as Epacris, Erica, Helichrysum, Boronia, etc, indeed, most if not all hard-wooded green-house plants, the greatest care is necessary. In the first place, we will suppose that the plants in spring are found in a dirty, sickly, neglected state; (upon this point I speak quite feelingly.) The plants should be taken carefully out of their pots, and if it be found, upon examination, they are making fresh roots, they may be potted in the same sized pots again, reducing the ball of earth about one third. Should the roots be very strong, a size larger pot may be used. In either case its own peculiar soil may be used, made somewhat more sandy than usual, and the greatest precaution taken that the pot is well drained, (the arguments advanced by Un Sot - a triple Etage - to the contrary notwithstanding.) The soil, in potting, should be made quite firm, being careful not to leave a vacuity between the roots and the sides of the pot.

When potted, the plants should be removed to the green-house or cool frame, where they can have plenty of light, and be shaded when necessary, until they are well established.

Should the plants be sickly in consequence of being over-potted, or the soil become sour or sodden with water, a considerable quantity of soil must be removed from their roots, without injuring any of their fibers which may be alive. They should then be potted in as small pots as the roots can reasonably be compressed into, rendering the soil quite firm both among and around the roots. Should the ball be found very wet, it will be well to allow it to become somewhat dry before it is repotted. Our practice in repotting hard-wooded green-house plants, is invariably to elevate the center at each potting, having found by experience that the genus Erica, and all New Holland plants, are greatly benefited thereby. Nothing can be more injurious to plants of this class than keeping them low in their pots; indeed, as a general rule, with few exceptions, no plants should be placed lower than they were in their former pots. After this operation is performed, the plants should be placed in a close frame or green-house, where the temperature can be kept rather warmer than in an ordinary green-house. In such a situation they will soon commence to grow, (the necessary care and attention being given them,) and in due time become quite recovered.

But if no such convenience is at hand, they may be placed in the closest part of the green-house, where they can enjoy plenty of light,and be shaded from the rays of the sun until they are sufficiently recovered to bear exposure without wilting.

Great care is necessary in the application of water; frequent supplies in moderate quantities should be the standard rule.

Should a plant become sickly during the summer, it should be submitted to the course above recommended without delay. If in the fall, they should be repotted and kept in a warm part of the green-house until the following spring; but if in the winter it is perceived that any are becoming sickly, it will be found best to let them remain until the month of March, giving them as little water as possible during that period, after which they may be treated as above recommended.