This section is from the book "The Wild Garden", by W. Robinson. Also available from Amazon: William Robinson: The Wild Gardener.
Verhascum vernale is a noble plant, which has been slowly spreading in our collections of hardy plants fur some years past, and it is a plant of peculiar merit, I first saw it in the Garden of Plants, and brought home some roots which gave rise to the stock now in our gardens. Its peculiarities, or rather its merits, are that it is a true perennial species - at least on the warm soils, and in this respect quite unlike other Mulleins which are sometimes seen in our gardens, and oftener in our hedgerows. It also has the advantage of great height, growing, as in the specimen shown in our illustration, to a height of about 10 feet, or even more. Then there are the large and green leaves, which come up rather early and are extremely effective. Finally, the colour is good and the quantity of yellow flowers with purplish filaments that are borne on one of these great branching panicles is something enormous. The use of such a plant cannot be difficult to define, it being so good in form and so distinct in habit. For the back part of a mixed border, for grouping with other plants of remarkable size or form of foliage, or for placing here and there in open spaces among shrubs, it is well suited. A bold group of it, arranged on the Grass by itself, in deep, light, and well-dressed soil, would be effective in a picturescpie garden. It is also known in gardens by the name of Verbascum Chaixii, which name, we believe, was given to it at Kew.
 
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