Bulb nursery for hyacinths, tulips and others, catalogues in 1778, 1785, 1790
[From Hollands Arkadia of Wandelingenin de Omstreekenvan Haarlem, by Adriaan Loosjes, 1804, p. 590:] Names of the main nurserymen [bloemisten] in Haarlem.... Kreps (J.) Son and Co., Kleine Houtweg
[From Almanach du Commerce de Paris, 1815, p. 972:] Zuyderzée (département du) ....Arondissement d'Haarlem ... Kreps fils (J.) et comp., march. fleuriste
[From "Journal of a Horticultural Tour through some parts of Flanders, Holland, and the North of France, in the Autumn of 1817", by Patrick Neill, p.p. 175-181:] ...Messrs Kreps possess about a Flemish arpent or Dutch acre of ground (apparently equal to two acres of our measure), where their choice bulbous-rooted plants are cultivated..... Being aware that Dutch nurserymen sometimes talk of furnishing three hundred varieties of Roses, we were desirous of viewing these in the nursery lines. We found -the collection here to be very considerable; and Mr Kreps mentioned, that he had procured all the known sorts cultivated in Holland, and many from England; but he candidly added, that he could not, in fairness, engage to furnish more than about one hundred distinct varieties. We may add, that, as far as we could learn, the new varieties of native Scots roses, as well as of garden roses, raised by Messrs Brown at Perth and Mr Austin at Glasgow, excel, in delicacy of appearance, all the more recent productions of the florist in this department of the art, either at Haarlem or in any other part of the Low Countries. These have been procured by sowing seeds of semi-double varieties of the little Scots rose (Rosa spinosissima), and seeds from the heps which frequently follow multiplicate flowers of Rosa alba, gallica and centifolia..... The principal tree nursery-grounds of Kreps and Company are situate on the other side of the Haarlem Meer ; but they have a collection of fruit and forest-trees, at a short distance from town, and one of the partners obligingly offered to conduct us thither the next day. In their bloemistry, however, we saw several fine plants, both in pots and in the open border, of an extremely dwarfish variety of the common apple (as we presume), which retains its leaves and fruit till midwinter, or longer, if it be protected from frost.
[From "Journal of a Horticultural Tour through some parts of Flanders, Holland, and the North of France, in the Autumn of 1817", by Patrick Neill, p.p. 200-201:] Kreps' Tree Nurseries. In the afternoon, Mr Kreps senior accompanied us, along one of the avenue roads of Haarlem Wood, to his nearest kweekery or tree nursery, situate somewhat more than a mile to the south of the town. Here we saw a large collection of fruit-trees. The general aspect of these was very different from what we had been accustomed to, in the nurseries of our own country. Among the trees accounted ready for sale, the youngest had evidently been trained for not less than five or six years; many had been eight, nine, or even ten years under training, after having been originally grafted on strong and tall stocks, or what is called full standard high.
[From *The Camellia", by Le Texnier, reprinted in International Camellia Journal, October 1992, p.45:] In the Netherlands, double varieties were introduced at the beginning of the 19th century, for, in 1803, Jean Kreps, a florist in Haarlem, had C. 'Alba Plena', 'Variegata Plena', and 'Rubra Plena'. He sold the first two for 42 florins and the third for 60 florins.
[From Rozenteelt in Nederland, by Gerrit Kleis, 2007, p. 64:] (translation) ..Another internationally renowned nursery was the company Kreps & Co. in Haarlem. Kreps told in 1817 to visitors of the Caledonian Horticultural Society, that he had all the rose varieties grown in Holland, and moreover, many from England.
[From "Rose Breeding before 1800 in Germany", by Anita Böhm-Krutzinna, 2017, p.5:] The gardeners Jean Kreps and Gottfried Voorhelm offered some of their roses with made-up French names.
