Dear iris- and daylily friends,

our break-year 2021 has now gone, and here we present our new offer, which is somewhat abundant because, due to age, it may be our last one. In 2022 we introduce not less than 9 new iris varieties and 18 new daylily varieties. For those of you, who are collectors of our varieties, this may come as a wave, but in these cases we will find a solution even later. Of some of the newly offered varieties we hold only small numbers of divisions, so that they may already be marked as ‘sold out’ in this homepage during the first three months of 2022. That means that ‘early birds’ have an advantage. Customers should take into account that the delivery of our plants is planned to be done exclusively during the first two weeks of April. We cannot accept orders that are combined with requests for markedly earlier or later delivery.

In any case your order must reach us by the 20th of March 2022 at the latest. Attention!! Reduced ordering period.

Our terms of delivery:

Minimum order size is 30,-- €. 

For shipment and packing material  we quote the real costs (including eventual costs for phytosanitary certificates).

The place of jurisdiction is Berlin


Please, use the follwing address for eventual orders:

Dr. Tomas und Christina Tamberg
Zimmerstr. 3
12207 Berlin
TEL: 0049-30-7124235
FAX: 0049-30-71202946


Note: Information concerning ploidity levels, chromosome numbers and fertility/sterility have been added for plant lovers, who intend to use our plants for breeding   purposes. These informations are of no importance for the general use of the plants as garden plants.

IRIS      (directly to daylily offer)


Iris sibirica HIMMELSFALTER (Tamberg 2021)

A large flowered, tetraploid Sibirica with upright standards and slightly hanging falls. This variety can develop two side branches on stems of 80 cm height. The light blue colour produces a good garden effect from the distance.

Sold out since 22.1.2022




Iris sibirica GINTO (Tamberg 2021)

A large flowered Sibirica resulting from a cross between two yellow colchicine treated parents. It is uncertain whether this is a tetraploid, However, size and width of the flowers look like those of a tetraploid. Flower spikes are of 65 cm height and have one side branch.

Sold out since 22.1.2022



Voll Des WeinsHP02

Iris sibirica VOLL DES WEINS (Tamberg 2021)

For the first time we offer a Sibirica of which most of the flowers can be called ‘double’. In such  a flower style arms and stamens are transformed into petals. VOLL DES WEINS comes from the cross WEINKÖNIGIN x CONCORD CRUSH. Flower stalks are of 75 cm height and have one side branch.

Sold out since 25.1.2022



Frau HolleHP02

Iris sibirica FRAU HOLLE (Tamberg 2021)

A vigorous, tetraploid, white Sibirica with large and ruffled flowers. Flower stalks are 85 cm tall and can have two side branches. It comes from the cross ERSTE SAHNE x SOMETHING SHOCKING.

Sold out since 29.1.2022



Berliner AmethystHP02

Iris sibirica BERLINER AMETHYST (Tamberg 2021)

The white throat signal of this large flowered tetraploid Sibirica creates a beautiful contrast to the colour of the horizontally held falls and of the relatively upright standards. Flowerspikes are 80 cm tall and have one side branch This variety is the result of the cross SSTT1007 x HAIL TO THE CHIEF

€ 15,--




Iris sibirica Lapislazuli (Tamberg 2021)

A vigorous tetraploid Sibirica producing large flowers of an especially pure blue colour. Upright standards, slightly hanging falls and a white signal create a beauitiful impression and a good garden effect even from the distance. Flower stems are 85 cm tall and can have two side branches. LAPISLAZULI comes from the cross ERSTE SAHNE x SOMETHING SHOCKING.

Sold out since 25.1.2022



Junger WeinHP03

Iris tetra-sibtosa JUNGER WEIN (Tamberg 2021)

This is the second wine red Tetra-Sibtosa hybrid we introduce, It was produced by crossing our Sibirica WEINKÖNIGIN with the wine red Tetra-Sibtosa SSTT1135. This variety is vigorous and floriferous and can produce up to five flowers on well branched stems of 90 cm height.

Sold out since 25.1.2022



Berlin SibcolorHP02

Iris sibcolor BERLIN SIBCOLOR (Tamberg 2021)

The group of Sibcolor hybrids is produced by crosses of tetraploid Sibiricas with colour forms of Iris versicolor, a natural tetraploid. In our case the cross was Iris sibirica PRUSSIAN BLUE x Iris versicolor, wine red. BERLIN SIBCOLOR forms floriferous clumps with stems of 75 cm height and one side branch. A variety for slightly humid sites.

€ 12,--




Iris tetra-sibtosa BLAUER FUNKTURM (Tamberg 2021)

With up to 140 cm height this is the tallest iris we have ever introduced. It is a Tetra-Sibtosa hybrid and comes from the cross Iris tetra-sibtosa MARATHON x Iris sibirica HARPSWELL VELVET. Its flower spikes can have three side branches and can develop up to six flowers. This extremely vigorous variety has to some extent a species character and is a good plant for humid sites.

Sold out since 29.1.2022





Iris tetrasibtosa SCHNEESTURM (Tamberg 2019)

All our attempts to produce a white 3/1-Tetrasibtosa hybrid had so far ended in blue, in spite of two white parents. The new variety SCHNEESTURM comes from a single spontaneous seed, harvested from a white, diploid Sibtosa hybrid treated with colchicine.  This variety is very vigorous. Flower spikes are up to 130 cm tall and produce up to nine buds on two side branches and a terminal. According to the type of hybrid the ferility is very low.

€ 15,--




Iris sibirica SAALEWEIN (Tamberg 2019)

This opulent wine red tetraploid came from a cross of our bright wine red variety Weinkönigin with a wine red seedling of the US breeder Bob Hollingworth. it develops its strongly ruffled , wide flowers high above the leaves on stems with one side branch. The falls are encircled by a thin white line. SAALEWEIN is a vigorous grower and is fertile.

€ 14,--




Iris sibirica SILBERKANTE (Tamberg 1993)

Of all our Sibiricas this is the one with the best white edge around the falls. Its flowers are large, flaring and ruffled. The flower spikes are 75 cm tall and have one side branch. Due to a digging error we had nearly lost this variety, of which we can now again offer a few divisions.

€ 8,--





Iris sibirica WERDERWEIN (Tamberg 2017)

A wine red tetraploid Sibirica with extremely wide fallls and strongly ruffled flowers. it is the noble result of a cross between our variety Großer Wein and a wine red Hollingworth seedling. Flower stems are up to 90 cm tall and develop one side branch.

€ 14.--





Iris Tetrasibtosa SIBTOSA DUKE (Tamberg 2017)

A velvety blue-violet Tetrasibtosa, derived from a seed mix taken from fertile Tetrasibtosas. The plant itself is again fertile and develops its flowers on stems of 80 cm height with up to two side branches. The falls are flaring and the standards relatively large.

€ 14,--



Magenta Sibtosa 

Iris sibtosa-Hybride BERLIN MAGENTA (Tamberg 2014)

A 3/1-Tetra-Sibtosa hybrid, that can be traced back to two superb parents:  ANGENEHME SEEREISE (Winkelmann) x STRAWBERRY FAIR (Hollingworth). The flowers are relatively large, wide and ruffled and are produced on strong stems with up to two side branches. Flower stems are about 90 cm tall. According to its genetic background it is nearly sterile. Only a few divisions are available.

€ 12,--

Magenta Sibtosa 




Iris sibirica ÜBER DEN WOLKEN (Tamberg 1994)

After a long break we are again able to offer this iris of which we believe, that it is the most beautiful light blue Sibirica. The wide petalled flowers of medium size show a uniform colour which is not disturbed by the nearly white throat signal. ÜBER DEN WOLKEN is a diploid variety showing its flowers on stalks with one side branch and of 75 cm height. This variety  must be lifted, divided and replanted with a somewhat higher frequency than other SIbiricas.

    Sold out since 22.1.2022



Lilie von Darmstadt

Iris sibirica LILIE VON DARMSTADT (Tamberg 2017)

A species-like, diploid Sibirica, whose clumps can be covered with a layer of graceful little flowers. The flower stems are thin, self-supporting and well branched. - The “Lilie” in the emblem of the city of Darmstadt and its football club is in reality an iris, to which the unusual varietal name refers in order to honour the players of the club, often called  “Die Lilien”.

€ 8,--




Iris sibirica LAVENDELTURM (Tamberg 2017)

Next to our variety Höhenflug is this the tallest tetraploid Sibirica (140 cm), we know of. It is nearly as tall as our Tetrasibtosa Lavender Landscape, but other than this one it is fertile. It comes from a cross between our Berliner Ouvertüre with a converted, species-like Sibirica seedling with the working name “Wilde Vier”. In the picture the colour of the flowers is a bit too pale. The flower spikes are upright and often have two side branches.

€ 14,--




Iris sibirica DREIQUELLENTOCHTER (Tamberg 2017)

This tetraploid Sibirica of classsical shape is our second introduction involving the tetraploid form of the very early flowering Iris typhifolia. It is not as vigorous as its extremely vigorous mother variety Drei Quellen, but its stems are more self-supporting and the plant is more fertile. Like all Typhifolia hybrids it is early flowering and produces its dark violet-blue flowers on stems with 80 cm height and with one side branch.

€ 9,--




Iris sibtosa-Hybride WAVE ENCORE (Tamberg 2014)

Dark blue 2/2-Tetra-Sibtosa hybrids are so far relatively rare. WAVE ENCORE  is a vigorous hybrid of this type with good fertility and flower spikes of 80 cm height and two side branches. An important tool for iris breeders.

€ 12,--



Sibirischer Frühlingkl_2

Iris sibirica SIBIRISCHER FRÜHLING (Tamberg 2014)

From a cross of a very early flowering wild form of Iris sanguinea with ON HER TOES (Schafer-Sachs, lilac-pink) we got an extremely floriferous white Sibirica with small but wide petalled flowers. It flowers together with beared irises of the SDB-group and is in all aspects an improvement compared to Snow Prince. Up to five flowers on spikes of 75 cm height. Only a few divisions available.

€ 12,--




Iris sibirica GLANZSTÜCK (Tamberg 2014)

A tetraploid Sibirica with very wide petalled flowers of medium size. Flowers are blue with a reddish hue. GLANZSTÜCK is quite floriferous and shows its flowers on branched stems of only 65 cm, but on top of the leaves. A variety for the foreground of a planting.

€ 8,--



Lavender Landscape

Iris sibtosa-Hybride LAVENDER LANDSCAPE (Tamberg 2012)

This is a plant for the landscape gardener. It was produced by a cross of a species-like tetraploid Sibirica with one of our best Tetra-Sibtosas. Like both parents this variety has lilac- pink flowers with somewhat lighter standards. The flower spikes can be 150 cm tall and produce two side branches with altogether seven flowers. Flower spikes and the narrow leaves stand always upright and give a clump of this variety a columnar shape.

€ 10,--




Iris sibtosa-Hybride SIBTOSA WINE (Tamberg 2010)

By back-crossing a pale wine red Tetra-Sibtosa seedling to our Tetra-Sibirica GROSSER WEIN we obtained this worlwide first wine red 3/1 Tetra-Sibtosa hybrid. Three quarter of its genetic material comes from the Sibirica complex and one quarter from Iris setosa. SIBTOSA WINE is vigorous and floriferous and flowers during the main flowering period of the Sibiricas on well branched stems of 80 cm height. Due to its genetic compsition it is nearly sterile.

€ 10,--




Iris sibirica KLEINER SCHMETTERLING (Tamberg 2010)

A small flowered diploid Sibirica of species-like structure, however with wider falls and more interesting colours. The falls have a light yellow background with some blue lines; the standards are light blue. The flowers are developped on well branched stems high above the narrow leaves. A charming Sibirica for natural gardens.

€ 8,--




Iris sibirica RAUCHBLAU  (Tamberg 2007)

This large flowered tetraploid Sibirica comes from a cross of a blue, mottled seedling with a pure white Tetra-Sibirica. Ruffled falls are of a smoky blue and the standards and style arms are of a lighter colour. This leads to an interesting clump effect of this variety. The flower spikes are strong, up to 90 cm tall and produce one side branch. A vigorous and fertile introduction.

€ 10,--



Großer Wein

Iris sibirica GROSSER WEIN (Tamberg 2005)

Of all wine red Sibiricas we have flowered over the years, this is one with the largest flowers. Such flowers may not always be beautiful, but in the case of GROSSER WEIN elegantly ruffled, wide petalled and large flowers are connected with tall and always upright flower spikes of 90 cm height. The plant forms only two buds per spike, but it compensates by the number of spikes. GROSSER WEIN is fertlle and flowers shortly before the peak bloom period of the Sibiricas.

€  8,--



Erste Sahne

Iris sibirica ERSTE SAHNE (Tamberg 2005)

A cross of Viel Creme with a converted seedling from Gelbe Möwe x Silver Illusion produced this tetraploid Sibirica with the largest and widest flowers, we have ever seen in a white Sibirica iris. The strong flower spikes can have two side branches, but with 75 cm height they are bit short relative to the size of flowers. Planted in the foreground of a bed, ERSTE SAHNE can produce an excellent garden effect. Its flowers open creamy-white, but quickly bleach to white in the sun. Only a few divisions are available.

€ 15,--



Sibtosa Ruffles

Iris sibtosa-Hybride SIBTOSA RUFFLES (Tamberg 2005)

By back-crossing a lavender Tetra-Sibtosa hybrid to the extremely ruffled Tetra-Sibirica STRAWBERRY FAIR we got this very vigorous 3/4-1/4-Tetra-Sibtosa with ruffled falls and standards. The colour of the flowers is between magenta and blue-violett. The flower spikes are 80 cm tall and can have two side branches. SIBTOSA RUFFLES flowers during the Sibirica peak bloom period. Due to its genetic composition it is nearly sterile.

€  8,--



Berliner Welle

Iris sibirica BERLINER WELLE (Tamberg  2001)

A tetraploid, which is a brillant example  of the wide/round/flat type of the Sibirica flower  shape. The flowers, which should be admired from above, are large and are produced on stems of about 75 cm hight and a single branching. A valuable child of the parents SILBERKANTE  and REGENCY BELLE.

€  10,--



Berlin Ruffles

Iris sibirica BERLIN RUFFLES(Tamberg 1993)

A great  tetraploid in each respect; on tall upright stems this variety develops large mid-blue flowers; falls are ruffled and show a lighter edge; in 1999 it received the British Dykes Medal as the first iris variety from continental Europe after getting an Award of Merit and an Award of Garden Merit of the RHS. Only a few divisions available..

€ 12,--




Iris orientalis FRIGIA (Rodionenko)

This iris from St. Petersburg can be called the only one from the Spuria group, that so far has behaved as a successful plant in our garden; the stems, nearly as tall as a man, produce a sequence of up to five pure white flowers; the variety is vigorous and hardy, but does not produce viable seed. It flowers late in the season.

€  6,--




Iris sibirica PLISSEE (Tamberg 1995)

A velvety, deep blue tetraploid, that won the trophy for the best beardless spike at the exhibitions in Erfurt in 1994 and 1999; well branched spikes of about 100 cm height produce flowers with a strong ruffling of the falls; the variety forms floriferous and long living  clumps, Award of Garden Merit RHS.

€  8,--



Hohe Warte

Iris sibirica HOHE WARTE (Tamberg 2001)

A diploid Siberian with good garden value due to its many flowers and excellent clump formation. The medium sized flowers are of whitish-lavender colour and are developed on upright and well branched stems of up to 150 cm height. Because of its special clump effect this introduction has caused a lot of admiration even in its seedling stage; vigorous, but setting only rare seeds, Award of Garden Merit RHS 2005.

€ 8,--



Berliner Ouvertüre

Iris sibirica BERLINER OUVERTÜRE (Tamberg 2001)

This proud  Siberian always flowers as one of the first named tetraploid varieties in our gardens. Large flowers are held on tall, strong and well branched stems. Up to five of the pale lavender flowers can be develop per stem.

€  7,--



Viel Creme

Iris sibirica VIEL CREME (Tamberg 2001)

Our second light yellow/white  tetraploid is an improvement of  SCHWEFELBLÜTE. The optimistic colour structure of this large flowered  and floriferous Siberian can lead to glamorous clump effects. Stems are tall and can produce two side branches with up to five flowers. However, the yellow colour is still bleaching  to cream-white by intense sun light, Award of Garden Merit  RHS 2005.

€ 8,--



Sibtosa Queen

Iris sibtosa-hybrid  SIBTOSA QUEEN (Tamberg 2001)

On tall stems with two side branches this 3/4-1/4-Sibtosa hybrid develops up to six flowers, showing initially a strong lavender-pink  that later pales to a lavender hue. In contrast standards and  styles are near white. The intensity and the contrast of colours are unusual for a Siberian hybrid. SIBTOSA QUEEN flowers during the first part of the main flowering period. The variety is vigorous and floriferous. In 2001 it won the trophy for the best spike of a beardless iris at the German iris show in Erfurt.

€  8,--




Iris sibirica LAVENDELWEIN (Tamberg 2001)

Colour-wise this tetraploid Siberian finds its place somewhere between  the lavender coloured and the deep wine red varieties. The  standards are of  lavender colour, and the falls are more of a light wine red. The variety is quite floriferous and has  produced very interesting clump effects in our garden. As a hybridizing plant it partially works as a lavender variety and partially as a wine red variety. In 2002 this variety got an Award  of Garden Merit as the result of the RHS trials at Wisley.

€ 11,--



Butterfly Fountain

Iris sibtosa-Hybride BUTTERFLY FOUNTAIN (Tamberg 2000)

After several unsuccessful attempts the cross SNOW PRINCE x white Iris setosa finally resulted in the worldwide first white  Sibtosa-hybrid. On thin wiry stems the plant forms up to nine buds  developing into small flowers floating well above the leaves.  This leads to an attractive clump effect as it is suggested  by the name BUTTERFLY FOUNTAIN. The variety is diploid and sterile.

€ 10,--



Northern Pink

Iris tetrasibtosa NORTHERN PINK(Tamberg 1995)

This lavender-rose Tetra-Sibtosa was obtained from a cross between two Sibtosa hybrid conversions; it found much attention at the iris exhibitions in Erfurt; numerous flowers with small standards develop on upright and well branched stems; good colour effect of a clump in the garden; important breeding plant for crosses with Tetra-Sibiricas.

€  8,--



Big's Child

Iris sibirica BIG'S CHILD(Tamberg 1993)

From the cross "BIG POTENTIAL" x DEAR DIANNE we got this clear midblue variety; it stands out by the size and width of the flowers; winner of the trophy for the best beardless spike of the Luxemburg iris exhibition in 1997; the variety is strong growing and produces  upright, thick stems with one side branch.

€  6,--



Berlin Purple Wine

Iris sibirica BERLIN PURPLE WINE (Tamberg 1993)

This tetraploid  is a surprizing child of TEAL VELVET; very large wine red flowers are produced on strong upright stems; much more  floriferous than many other wine red cultivars, reliable and fertile.

€  6,--




Iris sibirica BLAUMACHER(Tamberg 1997)

This tetraploid, midblue Siberian has large, well shaped flowers, but it was mainly selected because of its vigour and the masses of flowers it can produce. It easily covers planting areas with blue colour. Stems show two side branches and are 80 cm  tall.

€  5,--



Prussian Blue

Iris sibirica PRUSSIAN BLUE (Tamberg 1993)

This child of  GERMANTET ONE is still our special darling; large, wide  and ruffled flowers in a brilliant dark blue are produced on tall and always upright stems; good branching, long flowering period, excellent vigour, Award of Merit RHS 1993, Award of Garden Commendation BIS 1994, Hugh Miller Trophy BIS 1997,Award of Garden Merit RHS 1999.

€  9,--



Dreaming Late

Iris sibirica VIEL SCHNEE (Tamberg 1990)

Again we can offer this very beautiful white tetraploid. VIEL SCHNEE forms strong clumps with many upright stems, developing each up to five large flowers. The colour is a must as a contrasting colour for blue Siberians.

€ 10,--



Space Filled

Iris sibirica SPACE FILLED(Tamberg 1997)

On spikes with double branching this mid-blue tetraploid develops large, tailored flowers of space filling shape; the  standards  are of lighter colour and stand upright; the falls are more pendant; hight of stems: about 75 cm; fertile; also useful as  a cut flower.

€  6,--



Berlin Tiger

Iris pseudacorus Hybride BERLIN TIGER (Tamberg 1988)

An attractive  hybrid, grown from spontaneous seed of HOLDEN CLOUGH  x ?; strong growing plants produce stems with wide branching  and many buds; the flowers show a strong and dense line  pattern on yellow, creating a warm golden-brown colour effect;  healthy, dark green leaves; in contradiction to first assumptions the variety grows better on a garden bed with sufficient humidity  than directly in water; fertile, but yields only Iris pseudacorus  seedlings; Award of Garden Merit RHS 1995.

€  8,--




Iris APPOINTER (Tamberg 1993)

A hybrid from  BERLIN TIGER x Iris versicolor MYSTERIOUS MONIQUE, that  stands out by its enormous vigour and its free flowering habit; on beds with some humidity, but also with the roots below the water level, it forms dense clumps with upright leaves and well branched stems; the blue-violet flowers are of medium size and show some yellow on the falls; sterile; Award of Garden Merit RHS 1998. Only a few divisions are available.

Sold out since 29.1.2022

Species irises
Of  Iris typhifolia, Iris pseudacorus Roccapina (late flowering, tall), Iris lactea, Iris missouriensis  we offer divisions at   €  5,-- each.

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