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in late summer
if one is lucky
one may
from a rooftop vantage point in athens
see the blooming of these rare and beautiful flowers
© Jonne Kingma Photography | Contact
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TU Delft Hortus Botanicus
Aan het begin van de 20e eeuw wordt in Delft naast de toenmalige Technische Hogeschool, nu de Technische Universiteit Delft, een plantentuin aangelegd in een drassig stuk land tegen de Delftse binnenstad. Al snel wordt de tuin en het kassencomplex beplant met gewassen die van essentieel belang zijn voor de mens en duidelijke toepassingen hebben, zoals voedsel, medicijnen, kleding, onderdak en grondstoffen. Tropische gebruiksgewassen zoals bananen, gembers en thee, maar ook minder tropische families als de toverhazelaars zijn opgenomen in de plantencollecties, die verspreid door de tuin worden getoond, onderzocht en gebruikt.
De TU Delft Hortus Botanicus is een publieksgerichte tuin waar het heerlijk toeven is en altijd iets te ontdekken valt of te doen is. Maar het is ook een onderzoekstuin waar al meer dan 100 jaar botanisch onderzoek aan planten wordt gedaan. Het heeft veel wilde planten tot industriële toepassingen gebracht en is inspiratie geweest voor baanbrekende innovaties.
TU Delft Hortus Botanicus
At the beginning of the 20th century, a botanical garden was created in Delft, next to what was then the Delft University of Technology (now Delft University of Technology), on a marshy plot of land bordering the city center. The garden and greenhouse complex were soon planted with plants essential to humankind and with clear applications, such as food, medicine, clothing, shelter, and raw materials. Tropical crops such as bananas, ginger, and tea, as well as less tropical families like witch hazel, are included in the plant collections, which are displayed, researched, and used throughout the garden.
The TU Delft Hortus Botanicus is a public garden where it is wonderful to relax and enjoy, and where there is always something to discover and do. But it is also a research garden where botanical research on plants has been conducted for over 100 years. It has brought many wild plants to industrial use and has inspired groundbreaking innovations.
TU Delft Hortus Botanicus
Aan het begin van de 20e eeuw wordt in Delft naast de toenmalige Technische Hogeschool, nu de Technische Universiteit Delft, een plantentuin aangelegd in een drassig stuk land tegen de Delftse binnenstad. Al snel wordt de tuin en het kassencomplex beplant met gewassen die van essentieel belang zijn voor de mens en duidelijke toepassingen hebben, zoals voedsel, medicijnen, kleding, onderdak en grondstoffen. Tropische gebruiksgewassen zoals bananen, gembers en thee, maar ook minder tropische families als de toverhazelaars zijn opgenomen in de plantencollecties, die verspreid door de tuin worden getoond, onderzocht en gebruikt.
De TU Delft Hortus Botanicus is een publieksgerichte tuin waar het heerlijk toeven is en altijd iets te ontdekken valt of te doen is. Maar het is ook een onderzoekstuin waar al meer dan 100 jaar botanisch onderzoek aan planten wordt gedaan. Het heeft veel wilde planten tot industriële toepassingen gebracht en is inspiratie geweest voor baanbrekende innovaties.
TU Delft Hortus Botanicus
At the beginning of the 20th century, a botanical garden was created in Delft, next to what was then the Delft University of Technology (now Delft University of Technology), on a marshy plot of land bordering the city center. The garden and greenhouse complex were soon planted with plants essential to humankind and with clear applications, such as food, medicine, clothing, shelter, and raw materials. Tropical crops such as bananas, ginger, and tea, as well as less tropical families like witch hazel, are included in the plant collections, which are displayed, researched, and used throughout the garden.
The TU Delft Hortus Botanicus is a public garden where it is wonderful to relax and enjoy, and where there is always something to discover and do. But it is also a research garden where botanical research on plants has been conducted for over 100 years. It has brought many wild plants to industrial use and has inspired groundbreaking innovations.
In the Spring of 1894, well-known German botanist Heinrich Gustav Adolf Engler (1844-1930) held forth enthusiastically in a meeting of the Berlin Academy of Sciences. His topic was the botany of German Africa, and in the printed version of his paper, he gives a daunting list of newly discovered and described African plants. Among these is this Impatiens sodenii. It belongs, of course, to the same family as 'our' Creeping Lizzie; but in Africa this is a shrub and its flowers are really huge.
This Impatiens is named for Julius, Freiherr von Soden (1846-1921). The Freiherr had earned his stripes as governor of several German colonies in Africa; moreover, he was an indefatigable organiser of German interest in African botany and one of the founders of the Botanischer Zentralstelle für die deutschen Kolonien (1891/1899) of the Botanical Garden in Berlin. This work was centred on the development of agriculture and the commerce of agrarian plants and products between Africa and Germany. But in the margins of that kind of activity, scientific work of discovery was also encouraged. Thus Engler was able to describe and catalogue botanical discoveries.
Such work was built upon the great labors of men such as Carl Hugo Ehrenfried Wilhelm Holst (1865-1894), who lay dying of a variety of tropical diseases in what is today Tanzania just as Engler was holding forth in Berlin. Holst - a missionary botanist - had been stationed at remote Mlalo in the Usambara Mountains, and he had also traveled extensively and collected thousands of plants. It is from his specimen that Engler describes Impatiens sodenii, and he remarks specifically that it has been found only in the Mlalo area. The local name for our plant is 'Tuanange'.
Soon after Holst's death, a German colleague described him as 'a collector with incredible endurance', "Ein Sammler von unermüdlicher Ausdauer".
This particular plant is in the section of plants from southern Africa in the Hortus Botanicus of Amsterdam.