For several years we have seen in some Alsatian gardens a growing desire to create exotic decorations. For those who still doubt these statements, and for those who do not think or know that certain types of Palm trees resist in Alsace and in regions further north, just click on the links below to get you account of this growing frenzy.
Sadlyour knowledge of the rustic palms is at least restrained. This is why we see most often in the Alsatian landscape of Trachycarpus Fortunei "Palm of China or Palm hemp" formerly called "Chamaerops excelsa".
Fortunatelywe find palms other than trachycarpus with identical cold resistance or even superior to hemp palm.
The Alsatian climate is defined as temperate "cold". Winter Peaks oscillate between -18 ° C and -12 ° C which greatly limits the number of hardy palms that can grow with the minimum of winter protection.
Even Trachycarpus require protection because the reference resistance temperatures indicated for each plant depend on climatic variables "wind, spray, etc ...".
Only the trachycarpus produces a real stipe "trunk" giving it quite quickly the appearance of a tree./ P>
Here is a table presenting the palthe most resistant to cold "minimum winter protection".
Attention << all planted palms even present below must be protected the first 3 to 5 years, once well installed they can be left with a minimum protection at the roots. An article on the protection of palms is being built click here to access them.
Small tufted palm in bush, with flexible webbed leaves, the trunk stipe is short and thick with sharp needles.
This palm is endemic to the southeastern United States.
Thislittle palm tree is an amateurhumus, humidity and summer heat/ Span>. So we will choose a hot location, a rich soil and well watered./ P>
Full sunis preferable in temperate climate.
The windis not appreciated because the leaves are relatively brittle.
The ornamental interest of this species is low because its growth is very slow and its palms are very similar to those of trachycarpus fortunei.
His great quality lies in his incredible frost resistance: from -20 ° C to -24 ° C! .
mazari palm, Afghan palm
TheNannorrhops ritchieanais a typical arid zone species, it is a hardy, leathery, low, and clumpy palm.
It comes from the mountainous and dry regions of the Middle East, the plants undergo winters with heavy snowfall and long, hot summers.
Its growth is slowin a temperate climate, a stipe forms after several years, the rejections are very early.
This palm does not need humus, it needs sun, water with a well-drained soil./ Span>
Thewinddo not scare him.
It supports gels of the order of-20 ° C for formsgreen.
it supports gels of-10 to 15 ° C for gray forms"Silver".
Small palm tree, most of the timedevoid of trunk , the stipe is trapu, subterranean or creeping, the leaves are webbed, it grows spontaneously in the southeastern United States, it grows on all types of soil, sandy, clay, and rarely in the sun.
We must consider Sabal minor as a bush it does not produce rejections so it should be planted in groups of several individuals to take more aestheticism.
It must be planted on soil rich in humus and well watered, full sun or half shade can matter, it must be planted absolutely sheltered from the wind!/ Span>at risk of seeing his fins break.
He resists freezing -15 ° C to -20 ° C without any problems./ P>
palm hemp, palm tree of China/ Em>
For a more general description seeTrachycarpus Fortuneibelow.
What differentiates the Wagnerianus:
- it is known only in culture, the rarer it is a more expensive species.
- his leaves aremuch stiffer and smallerthan fortunei so moreresistant to wind andmore aesthetic , trachycarpus wagnerianus is finally more elegant than his cousin T.fortunei.
- T.wagnerianus is moredrought tolerant .
Its other cultural requirements and its tolerance to the cold are equivalent to that of the palm tree of China.
Chinese palm, hemp palm
Trachycarpus fortunei is an essential species, it is the palm tree tree most resistant to coldit is found in all parts of europe./ P>
Trachycarpus fortunei is aslender palm andslender. Its leaves are perfectly webbed, green, without thorns. The webbed leaves of Trachycarpus fortunei does not like the windthese will be broken and unsightly.
The palm tree is as the name suggests from china. it supports cold winters and neiguex.
The best results are obtained on a rich soil, deep and very well watered. More than other species it is a lover of moisture. Young plants can grow properly in the shade.
The hemp palm is one of the most frost-resistant species it is able to withstand repeated gels between -17 ° C and -18 ° C, we would have seen palm trees withstand -25 ° C gels in Germany!
Advice:if after a rough winter it is completely defoliated it is important not to get rid of it there is a good chance that the heart is still alive, it will leave in the spring if it is not the case let him a year this depends on the strerss suffered by the plant.
Dwarf palm x-doum or blue dwarf palm
Small bunchy palmforming huge tufts, the leaves are webbed soft but tough, they easily support the wind,we chose the cerifera form because it comes from the Moroccan Atlas is therefore the most rustic variety.
The thin waxy layer found on the palms of "cerifera" gives it a very ornamental gray / bluish color .
Nevertheless the frost resistance depends on the origins of the plant, we can say that chamaerops excelsa can support short gels from -13 ° C to -15 ° C.
The best growing conditions for chamaerops humilis are:a drained and well-watered soil associated with a full sun exposure. The growth was fairly fast even if the stipe never rises very fast.
silvered dwarf palm
For all theadvicethey are identical to those ofstrong>chamaerops humilis var "cerifera"and to all species of chamaerops humilis.
However chamaerops humilis "argentea" is often encountered in italy "Tuscan"./ P>
Certainly the most rustic humilis, very resistant it can support brief freezes of the order of -13 to - 16 ° C.
Do not confuse it with "cerifera",the reverse of the Palmes is silver while the top remains green, which gives it a more than striking contrast.