(2014)  Page(s) 63.  
 
[From "Two different cultivars named Rosa Poznan", by Jerzy Zielinski, 2014]

Translation:
Describing a new cultivar called Rosa 'Poznań'we were not aware, however, that much earlier the name 'Poznan' was used by
 Leopold Grąbczewski for 'noble' a large-flowered rose, bred by this known nursery school in Dąbrówka near Warsaw. He recalled about this Dolatowski (1999) in the book "Szkółkarstwo Polskie 1799-1999 ", in which he placed a short note about the
 'Poznań' rose, taken from an undated advertising leaflet issued in the sixties of the twentieth century by the Foreign Trade
 Center "Rolimpex". This leaflet, entitled "Rose-trees from Poland" shows, that Rosa 'Poznań' was presented by Grąbczewski
 as a new variety in 1966 and in the same year she received a distinction in Kortrijk in Belgium. From the record in the
 breeding book of the company "Grąbczewscy" it is known that Rosa 'Poznań' is one of the selected seedlings 'Rouge Meilland'
 variety (Jan Grąbczewski, oral communication). The fairly accurate, "professional" description of the 'Poznań' rose in the
 leaflet "Rolimpexuˮ, drawn probably by himself Leopold Grąbczewski, lets think that she was this is an extremely effective
 variety. However, it has not been registered and after a short period of popularity - practically she disappeared from growing.
 Lack of it in botanical gardens and in private collections, none of them are recommended nowadays specialized nurseries, 
there is none in the "Grąbczewscy" nursery operating in Runów.

 
 

 
 









 
 

(2014)  Page(s) 65-66.  
 
Rosa ‘Poznańska’ (A. Chodun, J. Zieliński, 2014),
Ryc. 1–4.
Syn.: Rosa ‘Poznań’ (Bojarczuk, Zieliński 1988, Ryc. 1A–D, F; nom. illeg.) non Rosa ‘Poznań’ (L. Grąbczewski 1966).
Róża 'Poznańska' thanks to the nursery mentioned above in Radliniec she came to various places in Poland, sometimes it is planted in private gardens, but also in urban greenery and parks. It is resistant to frost and drought, as well as diseases fungal. It reproduces by short underground stolons, perfectly manages to cope in less well-maintained places. Caring for her is not troublesome and can be limited to removing dry shoots and periodic rejuvenation. one can it is relatively easy to recognize by stiff straight lines shoots, covered only in the lower parts with weak igloids prickles, large naked leaves and large singles flowers, whole-scale plots, etc. (Bojarczuk, Zieliński 1988, Fig. 1 A-D, F). You can only mistake it with R. gorenkensis Besser, a species most likely to us which was dragged from western Russia; the latter usually has two prickles at the base of the leaves, narrower bracts and pods, besides - in contrast to the Poznan rose - usually bears fruit.
In the publication cited at the beginning (Bojarczuk, Zieliński 1988), we found out that the cultivar we are describing is most likely a spontaneous cross of Rosa Rugosa Thunb. and R. blanda Aiton. Share of the first species seems indisputable, as indicated by large, slightly wrinkled leaves, numerous small, needle-shaped spines at least in the lower part of the dunces and, in some places, traces hair on these long shoots, and large flowers. About that, that the second parent of the rose from Poznań could have been R. blanda, It seems to be confirmed by the lack of prickles in the upper zone long shoots and on flower shoots and usually individually sawn leaves. Probably, however, it is not them F1 crossbreed, but one of the segregants of the next generation. The hybrid of R. rugosa and R. blanda has been described by Ellen Willmott (1911: 185, Table 59) under the name R. × warleyensis E.Willm., But it is very different from the Poznan rose - has small, hairy leaves, finer flowers, stronger prickles, also present at the top of the darts.