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For several years we can see in some Alsatian gardens a growing desire to create exotic decorations. For those who still doubt, these words, and for those who don't think or do not know that certain kinds of Palm trees in Alsace and in areas more to the North still resist you just click on the links below to reflect this growing frenzy.
Unfortunately our knowledge of the Hardy Palm trees is at least restricted. This is why we see most often in the Alsatian landscape of the 'China Palm or hemp Palm' Trachycarpus Fortunei formerly called "Chamaerops excelsa".
Fortunately We find other Palm trees trachycarpus with resistance to the same cold see higher than the hemp Palm.
The Alsatian climate is defined as temperate "Cold". The winter peaks range from-18 ° C to - 12 ° C greatly limiting the number of rustic Palm that can grow with minimal winter protection.
Even the Trachycarpus require protection because temperatures of references for every plants of resistorsdepends on climatic variables "wind, spray, etc...".
Only the trachycarpus produces real stipe "trunk" giving it the appearance of a tree fairly quickly.
Here is a chart showing the Palm trees more resistant to "minimum winter protection" cold.
Attention << tous palmiers plantés même présent ci-dessous doivent être protégés les 3 à 5 premières années, une fois bien installés ils pourront êtres laissés avec une protection minimum au niveau des racines. Un article sur la protection des palmiers est en cours de constructions Click here to access.>>
Small Palm clusteredin Bush, the flexible palmate leaves, the "trunk" stipe is short and thick trimmed longues sharp needles.
This Palm is endemic to the southeastern United States.
This small Palm es an d amateur' humus, humiditee and summer heat. So how is a hot location, a rich, well-watered soil.
Full sun is best in temperate climates.
The wind is not appreciated because the leaves are relatively brittle.
The ornamental value of this species is low because its growth is very slow and its fins resemble enormously one of Trachycarpus fortunei.
Its great quality lies in its amazing freezing resistance:-20 ° C to-24 ° C!
Nannorrhops ritchieana, Palm mazari Palm Afghan
The Nannorrhops ritchieana is a typical species of arid zones, it is a rustic, leathery, low Palm and suckering.
It comes from areas mountain etseches of the Middle East, plants suffer winters froisds with significant snowfall and long and warm summers.
Its growth is slow in temperate climates, it se forms a stipe after several years, releases are very early.
This Palm did not need humus, it needs Sun, water with well-drained soil.
The wind does not fear.
It supports gels of the order of -20 ° C for forms Green.
It supports gels of -10 to 15 ° C Pros grey forms "silver".
Sabal minor, Saw Palmetto
Small Palmmost often devoid of trunkthe stipe is stocky, underground or crawling, leaves are palmately, it grows spontaneous State in the southeast of the United States, it grows on all types of soil, sand, clay, and the Sun rarely.
Then consider Sabal minor as a Bush it produces no discharges should therefore plant in groups of several individualsfor taking more aesthetic.
It must be planted on a soil rich in humus and well watered, full sun or partial shade is important can, it should be planted absolutely out of the wind! under risk of its fins break.
It resists gels of -15 ° C to-20 ° C without no problems.
Trachycarpus wagnerianus, hemp, China Palm Palm
For a more comprehensive description see Trachycarpus Fortunei below.
What distinguishes the Wagnerianus:
-It is known that in culture, more rare it is a more expensive species.
-its leaves are much more rigid and smaller as fortunei so more resistant to wind and more aesthetic, trachycarpus wagnerianus is finally more elegant than its cousin T.fortunei.
-T.wagnerianus is more drought-tolerant.
Its other requirements and its tolerance to cold are equivalent to that of the Palm tree of China.
Trachycarpus Fortunei, China Palm, hemp Palm
Trachycarpus fortunei is a key species, it is the Palm tree most cold-resistantfound in all regions of europe.
Trachycarpus fortunei is a gracile and slender Palm. Its leaves are perfectly palmate, green, without spines. Leaves palmately of Trachycarpus fortunei dislikes the wind These will be broken and unsightly.
The Palm is as its name suggests native to China. It supports cold winters and neiguex.
Best results are obtained on a soil rich, deep and very well watered. Most other species it is an amateur of humiditee. Young plants can grow properly in the shade.
Hemp Palm is one of the most frost-resistant species it is capable of supporting the gels repeated between-17 ° C to - 18 ° C, We would have seen Palm trees resist gels of-25 ° C in Germany!
Tip: If after a rough winter completely defoliated should not get rid of it strong is to parierque the heart is still alive, it repartiras in the spring if not leave him a year it depends on the sudden strerss by the plant.
Chamaerops humilis var "cerifera",
Saw Palmetto x-doum or blue Palmetto
Small Palm clustered forming huge clumps, the leaves are palmate flexible but tough,. they support easily the wind, We have chosen the cerifera form because it comes from the atlas Moroccan is therefore the most Hardy variety.
The thin waxy layer on the fins "cerifera" gives a very ornamental grey/bluish color.
Nonetheless the frost resistance depends on the origins of the plant, we can say that chamaerops excelsa can support a short gels of-13 ° C to-15 ° C.
The best conditions of cultures to the chamaerops humilis are: drained, well-watered soil associated with exposure direct sunlight. The grow is revealed pretty fast even if the stipe never rises very quickly.
Chamaerops humilis "argentea" var
Saw Palmetto silver
For all the Tips they are identical to those of Chamaerops humilis var "cerifera" and all species of chamaerops humilis.
However chamaerops humilis 'argentea' is often encountered in Italy "Tuscany".
Certainly the most rustic of the humilisvery resistant it can withstand short gels of the order of -13 to -.16 ° C.
Not to be confused with "cerifera", the other side of the fins is silver while the top remains well green, giving it a more contrast.