Plants & Flowers

Dianthus Hybridus.

Syn. D. Multiflorus; Mule Pink; Nat. Ord. Caryophyllaceæ.

Hardy and evergreen. The specific name of this variety is not at all descriptive, and it may be better to at once give its common name of Mule Pink, of which there are various colours, as bright scarlet, rose and pure white, all very double and neat flowers.

It is the double rose kind which has induced me to speak of this section of the Pink and Sweetwilliam family. I dare say many will be surprised when I state that my strongest plant of this has been in flower more than two years. Severe as the 1881 winter was, when the plant was clear of snow it was seen to have both flowers and buds—in fact, for two years it has flowered unceasingly; the other varieties are not such persistent bloomers. The genus to which these hybrids belong is very numerous, and includes Carnations, Picotees, garden and alpine Pinks and Sweetwilliams. They are all remarkable for their fresh green and glaucous foliage and handsome flowers. Some species or varieties are amongst the "old-fashioned" garden plants of Parkinson's time, and all are characterised by an exquisite perfume. The Latin name of this genus is a very happy one, meaning "divine flower," in reference to its fragrance. Nearly every form and colour of Dianthus are popular favourites, and hardly any garden is without some of them.

The Mule Pink is supposed to have been produced from D. barbatus and D. plumarius; be that as it may, the features of both are distinctly seen in it: the colour and partial form of the foliage, the form of stems, and clustered arrangement of the buds much resemble D. barbatus or Sweetwilliam; whilst the stout reflexed and pointed features of the leaves, and the general form of the small but double flowers resemble D. plumarius, or the garden Pink. To this description of D. hybridus I will only[Pg 83] add that in both foliage and flowers there is more substance than in either of its reputed parents, and the habit of the plant is semi-trailing or procumbent, as seen in specimens three years old. It is rather more difficult to grow than the common Pink. Any position or soil will not answer; it does well on rockwork, where it can hardly suffer from damp, so much disliked by all the genus; but if thus planted, it should be where its thickly-foliaged stems cannot be turned over and wrenched by strong winds. It may be grown in borders in sandy loam; and if such borders are well drained, as they always should be for choice flowers, there will be little to fear as to its thriving. Such an excellent flower, which, moreover, is perpetually produced, deserves some extra care, though, beyond the requirements already mentioned, it will give very little trouble.

To increase it, the readiest way is to layer the shoots about midsummer, half cutting through the stems, as for Carnations; thus treated, nice plants will be formed by October, when they may be lifted and transplanted to their blooming quarters; and I may here state that a line of it, when in flower, is richly effective. A good style also is to make a bold clump by setting ten or twelve plants 9in. apart. Another mode of propagation is to take cuttings at midsummer and dibble them into boxes of leaf soil and sand. Keep them shaded and rather close for a week or more. If the boxes could be placed in a cucumber frame, the bottom heat and moisture would be a great help to them. The object to aim at should be not only to root the cuttings, but to grow them on to fair-sized plants for putting out in the autumn. To do this, when the cuttings are rooted they should be planted 6in. apart in a bed made up of well decayed manure and sand, in which it will be seen that they will make plenty of roots and become sturdy plants. The wireworm and slugs are both very fond of Pinks and Carnations. Slugs should be trapped, but the wireworm, unfortunately, has often done the mischief before we become aware of its presence, and even then it is a troublesome pest to get rid of. I find nothing more useful than stirring and digging the soil as soon as there is room to work with a spade or fork; the worm cannot endure frequent disturbance, and such operations are otherwise beneficial to the plants.

Flowering period, May to September.