34 On Acclimatising Plants at Biel, in East Lothian. 



are now (June 29) appearing on it. Calla iEthiopica, in the 

 open border, produces much ripe seed here ; I have two 

 ounces so ripened. Some years ago I sowed the seed of this 

 plant at the end of March, in open ground, in vegetable mould 

 on a clay bottom, placing a portion of an old broken frame 

 over it ; it was kept duly moist ; in about five or six weeks 

 fifteen plants appeared; they continued to grow all the 

 summer ; at the end of the autumn I took them up, potted 

 them, three plants in a pot, and protected them in winter. 

 Afterwards I turned one of the seedling plants into the open 

 ground under a high wall with a west aspect, where the sun 

 cannot shine on it till past twelve o'clock ; here it has endured 

 the last three winters with only some decayed tanners bark 

 put over its roots on the approach of severe weather. It 

 flowers every summer, is now very strong, and at the end of 

 May, and in the beginning of June in this year, it sent up 

 three strong flowers at the same time, full three feet high, 

 although the weather has been so extremely dry ; the fourth 

 flower is now (June 29), quite as high, and the plant is likely 

 to produce seed. 



Hypericum /Egyptiacum I put out in the open border in its 

 pot several years ago ; it still endures the winters, and flowers 

 a long time. I have also discovered that Commelina tuberosa, 

 from Mexico, a reputed stove plant, is hardy, a plant having 

 stood the two last winters in the open border ; last summer 

 it flowered and ripened seeds, some of which fell on the 

 border, and produced seedling plants* about the end of May. 



• August 2, 1826. These began flowering at two inches high by August 10, 

 1825, and continued to grow and flower in September. The old plant has now 

 about sixty flowers open together on it. 



