PLANTS WORTH GROWING 97 
delicate pink in otherwise green and white flowers, 
the rosy flush depending upon the warmth and 
dryness of the summer. Division of the root-clumps 
is the best method of propagation. 
Aubrietia. — The close-growing Spring-flowering 
Aubrietias are generally classed as Rock-plants, but 
must be briefly referred to as being among the best 
of our hardy edging plants. Mauve, lavender, 
violet, purple, red, and even white varieties may be 
had. Cuttings of young growth inserted in pans of 
sandy soil root readily. Old plants may be divided 
and replanted, and seed will produce vigorous young 
plants which, however, cannot be relied upon to 
maintain uniformity of colour, which is often 
desirable in the matter of edgings to flower beds 
although of less importance for the front of a mixed 
herbaceous border. 
Baptisia. — The Indigo plant is strikingly handsome 
and very distinct in character. It produces stiff, 
erect spikes of large pea-shaped flowers which are of 
a very pleasing shade of clear blue. The foliage 
spreads horizontally under the flower spikes, and a 
well-established clump is a feature worthy of 
prominence among our choicest perennials. The 
plant throws up new branches from the ends of 
spreading underground stems, and ample room 
should therefore be allowed in a position where 
frequent disturbance will be unnecessary. 
There are white- and yellow-flowered Baptisias, 
but B. Australis, the blue one, is undoubtedly the best. 
