This section is from the book "The Gardener V2", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
This is a useful, showy, and free-flowering group of plants. For a small family there is considerable diversity of habit in the members comprised in it, but there is little variety of colour, yellow in various shades being the predominating hue. L. nura-mularia is one of the prettiest and most interesting. It is a dwarfy prostrate plant, throwing many branches out in all directions from the centre, which in moist situations root at the joints and so spread many feet. The flowers are yellow and appear in June, and last on till September and October if occasionally pinched in to induce fresh growth. It is useful for a variety of purposes - for clothing rock-work, moist banks, front lines in mixed beds and borders, and for festooning the margins of rustic vases where such ornaments may with propriety of taste be introduced into flower-gardens. Native of Britain and Europe generally. A variety with yellow leaves or yellow variegated leaves, recently introduced, is of considerable value, and will, when more generally known, become a favourite in the flower-garden of any style.
Lysimachia Vulgaris like the last-named species, is a native of Britain, and Europe generally, appearing also in many parts of Asia and in Australia. It rises erect to the height of 2 or 3 feet, with branching stems terminating in loose leafy panicles of yellow flowers, which appear in July, August, and September. It is not at all a choice-looking plant, but it is valuable for introducing into moist open woods, and for planting on the banks of ponds and streams where the natural vegetation stands in need of improvement, and for lighting up masses of shrubs. It succeeds in any common soil, but delights most in partially shady moist places.
Lysimachia Punctata by some considered as a rather well-marked variety of Lysimachia vulgaris, is for horticultural purposes not very distinct from that species. It is found in some parts of England and Scotland along with Lysimachia vulgaris, and in south-eastern Europe. The spotting implied in the specific name is not of much value.
Lysimachia Thyrsiflora native of Britain and other parts of Europe, of northern Asia and America. It is similar in aspect to the preceding species, but dwarfer, and with simple or unbranched erect stems. The flowers are yellow in rather dense racemes, and appear in June, July, and August. Useful for the same purposes as the preceding.
Lysimachia Angustifolia from North America, is a very graceful species, growing to the height of a foot or eighteen inches, with terminal leafy panicles of nodding pale yellow flowers. It is useful for the same purposes as the two preceding species, and is well worth a place in the mixed border. Like the others it delights in moisture, and is not fastidious as to the quality of the soil. The flowers appear in June and July.
Lysimachia Ephemerum from several parts of the south of Europe, is very distinct from either of the foregoing species. It grows about 2 feet high, with rather graceful habit, and the stems terminate in handsome racemes of white flowers. The corolla is rotate, with deeply-divided spreading lobes obovate in form. It flowers in July and August, and is most suitable for cultivating in the mixed border or the margins of shrubberies in good moist soil.