THE EVENING PRIMROSE.

I wonder whether the Evening Primrose is as much grown and cared for as it deserves to be. It is an American plant, but is now found wild in several parts of England, notably at Formby, among the Lancashire sand hills, where tradition says it originally came from a vessel wrecked on that barren coast. It is mentioned little, if at all, by our old botanists, and our more modern poets have for the most part passed it carelessly by. Southey, however, alludes to it in his well-remembered lines to the bee, that was still at work, after the Cistus flowers had fallen and “the Primrose of Evening was ready to burst.” Keats, too, has a striking passage about the Evening Primrose, which I quote a little further on, for I may perhaps make a few extracts from an article I lately wrote in the Pall Mall Gazette on “The Garden at Nightfall,” as I have no better words in which to describe the beauty and charm of these Œnotheras. The question arising from the veins of flowers I have already mentioned in The English Flower Garden.

“I have two varieties of Œnotheras or Evening Primroses, and they are in their full glory to-night. One is the large flowering yellow Œnothera, which grows from five to six feet high, and which opens its yellow blossoms night after night from early summer to late autumn. It is a curious sight to see the blossoms begin to open. I had been in the garden shortly after six, and the yellow buds were still folded within the calyx. Watching closely, you saw the petals give a sudden start—they half release themselves—and by degrees open out fully into the blossom, which will last till morning, but begins to fade after the sun has dried up the dews of night. Keats, whose accurate observation of flowers is often very remarkable, speaks of

‘A tuft of evening primroses
O’er which the mind may hover till it dozes;
O’er which it well might take a pleasant sleep
But that ’tis ever startled by the leap
Of buds into ripe flowers.’

But more beautiful still than the yellow Œnotheras is the white Œnothera taraxicifolia, the evening primrose of the dandelion leaf. I have a bed of standard roses which I have carpeted entirely with this Œnothera. It grows low to the ground, and its leaves, which are deeply serrated, cover the bed. In the daytime there are the relics of the last night’s harvest of blossom, but the flowers look faded, and soon get a pink flush over the white—after which they wither away. But to-night the fresh blooms are out, and I count from sixty to seventy of them, like stars, some in clusters and some gleaming singly from the mass of deep foliage. There is, it almost seems to me, a positive light about them which no other white flower has, not even the Eucharis or the Christmas rose. And then the blossoms are so large when fully open—at least three inches across the petals. This Œnothera is from Chili, but the yellow one comes from North America; and a smaller yellow one, also from North America, may be found naturalized and now quite wild in one or two places in England. The name Œnothera (properly, I suppose, Œnothera) is said to have been given because the root smelt of wine; but if it is uncertain what the Greek Œnothera really was, certainly no old Greek could know anything of these beautiful blossoms of our Western night.

“Sir John Lubbock says that the evening primrose is probably fertilized by moths, and it would seem at first sight most likely that this should be the case. To-night—for the air, as I have said, is quite still and warm—is just the night that I should expect the moths to be at work; but after long waiting near a large yellow Œnothera (the one plant had forty blooms), I did not see one single moth. I returned to the bed of Œnothera taraxicifolia, and again I could see no moth of any kind. Meanwhile, a little further off, among a bed of white Mediterranean heath, which is just as much in flower by day as it is now, there are several of these wanderers of the night—little brown moths of (I think) two different varieties. There and there alone, and not among the large open blossoms of the Œnotheras, or among the delicate tufts of night-scented stock, were the moths busily engaged. Why, then, do these night-flowers—if it be not to attract night insects, and so get fertilized—expand their petals as evening falls? We have, I suspect, a good deal yet to learn on these matters. Even the two Œnotheras are very unlike in several respects. The seed-vessel of the Œnothera taraxicifolia is at the end of a long tube, some seven inches in length, down which runs the stalk or style of the pistil, and within this tube I have constantly found little black flies and grains of pollen. Moreover, the pistil and the stamens of this Œnothera are as nearly as possible the same length; so that even before the flower has opened, a stigma or head of the pistil has got well dusted over with the pollen of the stamens.

“In the case of the large yellow Œnothera the pistil stands out above the stamens, and I suppose it could not be fertilized except by the wind or (more probably) by insects. The tube that leads to the seed-vessel is here only about two inches long, and is not smooth but hairy, so that insects would hardly pass down. Somehow or other, however, the yellow Œnothera bears seed much more certainly and abundantly than the white one. I must add that the veins in both Œnotheras, and especially in the white one, are very strongly marked; so that a theory which carries the high sanction of Sir John Lubbock, that veins are guides to the honey of a flower, and that they do not exist in night-opening flowers, as they would be unseen by night and therefore useless, can hardly, I imagine, be maintained.”

I believe it is now pretty well ascertained that the Œnothera of the ancients was the small Willow-herb (Epilobium roseum), which in my own garden is the most familiar of weeds.

Pliny describes it as having exhilarating properties in wine, as having leaves like those of the Almond-tree, a rose-coloured flower, many branches, and a long root, which, when dried, has a vinous smell, and an infusion of which has a soothing effect on wild beasts.

In Baptista Porta’s curious Phytognomonica (published at the end of the sixteenth century) he says,—speaking no doubt of this same Epilobium,—that the dried root of the Œnothera smells of wine; given as a drink it soothes wild beasts and makes them tame, and rubbed on the worst wounds it serves to heal them.