NEWS

September 2002

During this period, 32 seedlings representing 18 different species of conifers were planted in the various fields of the Arboretum. With a wet soil this period of the year is ideal for planting. Roots will have time to grow further before Winter.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (4 new species) :

  1. Abies homolepis (11)
  2. Abies nebrodensis (1)
  3. Picea alcoquiana reflexa (1)
  4. Pinus virginiana (1)
Species already in the Arboretum :
  1. Abies magnifica (2)
  2. Austrocedrus chilensis * (1)
  3. Cathaya argyrophylla * (1)
  4. Cupressus funebris * (1)
  5. Juniperus deppeana * (1)
  6. Juniperus silicicola * (3)
  7. Larix laricina (1)
  8. Larix occidentalis * (1)
  9. Picea breweriana * (1)
  10. Pinus coulteri * (2)
  11. Pinus resinosa * (1)
  12. Pinus rudis (1)
  13. Prumnopitys andina (1)
  14. Tsuga heterophylla (1)


July-August 2002

During this period, 94 seedlings representing 33 different species of conifers were planted in the various fields of the Arboretum. The two months received enough rains : no drought this year, no watering needed.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (8 new species) :

  1. Cathaya argyrophylla * (1)
  2. Juniperus deppeana * (3)
  3. Juniperus foetidissima (1)
  4. Juniperus phoenicea * (1)
  5. Pinus densata (1)
  6. Pinus longaeva * (1)
  7. Taxus chinensis * (2)
  8. Tetraclinis articulata * (1)
Species already in the Arboretum :
  1. Abies bornmuelleriana (1)
  2. Abies bracteata * (1)
  3. Abies magnifica (3)
  4. Abies marocana (1)
  5. Calocedrus decurrens (1)
  6. Cryptomeria japonica * (2)
  7. Cupressus abramsiana * (7)
  8. Cupressus arizonica arizonica * (6)
  9. Cupressus cashmeriana * (2)
  10. Cupressus funebris * (8)
  11. Juniperus excelsa * (2)
  12. Juniperus monosperma * (1)
  13. Juniperus osteosperma * (1)
  14. Picea omorika * (10)
  15. Pinus aristata * (1)
  16. Pinus cembroides (1)
  17. Pinus contorta latifolia (4)
  18. Pinus coulteri * (3)
  19. Pinus lambertiana * (9)
  20. Pinus reflexa (1)
  21. Pinus roxburghii * (3)
  22. Pinus rudis (1)
  23. Pinus torreyana * (2)
  24. Taxus baccata (11)
  25. Torreya taxifolia (1)


May 2002

During this period, 19 seedlings representing 11 different species of conifers were planted in the various fields of the Arboretum.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (2 new species) :

  1. Pinus palustris * (2)
  2. Pinus quadrifolia (1)
Species already in the Arboretum :
  1. Chamaecyparis thyoides * (2)
  2. Cunninghamia konishii (1)
  3. Keteleeria davidiana (1)
  4. Pinus banksiana * (2)
  5. Pinus coulteri * (3)
  6. Pinus culminicola (3)
  7. Pinus resinosa * (2)
  8. Pinus tabuliformis * (1)
  9. Pseudolarix amabilis (1)


March-April 2002

During this period right at the beginning of Spring, 136 seedlings representing 32 different species of conifers were planted in the various fields of the Arboretum. Ideal weather allowed to plant this amount of new trees, and rain was coming just after the planting time was over.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (4 new species) :

  1. Lagarostrobus franklinii (1)
  2. Larix laricina (1)
  3. Pinus muricata borealis * (2)
  4. Pseudotsuga macrocarpa * (1)
Species already in the Arboretum :
  1. Abies magnifica (12)
  2. Abies pindrow * (2)
  3. Araucaria angustifolia * (1)
  4. Austrocedrus chilensis * (1)
  5. Calocedrus decurrens (30)
  6. Cedrus atlantica argentea * (1)
  7. Chamaecyparis lawsoniana (25)
  8. Chamaecyparis thyoides * (1)
  9. Cunninghamia lanceolata * (1)
  10. Cupressus funebris * (2)
  11. Cupressus lusitanica * (4)
  12. Cupressus sargentii * (1)
  13. Cupressus sempervirens 'Stricta' (7)
  14. Juniperus excelsa * (1)
  15. Juniperus osteosperma * (3)
  16. Juniperus silicicola * (5)
  17. Juniperus virginiana * (2)
  18. Pinus attenuata * (4)
  19. Pinus bungeana * (3)
  20. Pinus coulteri * (2)
  21. Pinus elliottii * (1)
  22. Pinus roxburghiii * (1)
  23. Pinus tabulaeformis * (3)
  24. Pinus wallichiana (7)
  25. Sequoiadendron giganteum (1)
  26. Taxus baccata (8)
  27. Thuja standishii * (1)
  28. Torreya grandis (1)


February 2002

During this period, 28 seedlings representing 15 different species of conifers were planted in the various fields of the Arboretum. After drought (August to November), frost (December), now... snow.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (3 new species) :

  1. Pinus densata (1)
  2. Pinus mastersiana (1)
  3. Pinus roxburghii * (1)
Species already in the Arboretum :
  1. Abies magnifica (7)
  2. Chaemaecyparis pisifera * (2)
  3. Chamaecyparis lawsoniana * (1)
  4. Cryptomeria japonica * (2)
  5. Cunninghamia konishii (1)
  6. Cupressus chengiana (2)
  7. Pinus coulteri * (3)
  8. Pinus culminicola (1)
  9. Pinus torreyana * (2)
  10. Thuja standishii * (1)
  11. Thujopsis dolabrata (1)
  12. Tsuga diversifolia (2)


December-January 2001-2002

During this period, 37 seedlings representing 19 different species of conifers were planted in the various fields of the Arboretum. Frost did not allow planting as many seedlings as usual. Planting could begin only in January. There was in December two weeks of frost without the temperature going above zero even in daytime (in the shade). More damage in the nursery than in the fields.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (2 new species) :

  1. Abies marocana (1)
  2. Cupressus abramsiana * (1)
Species already in the Arboretum :
  1. Abies pinsapo (2)
  2. Abies sachalinensis mayriana (1)
  3. Cedrus deodara (1)
  4. Cunninghamia lanceolata * (2)
  5. Cupressus arizonica nevadensis * (3)
  6. Cupressus arizonica stephensonii * (2)
  7. Cupressus funebris * (3)
  8. Cupressus lusitanica * (3)
  9. Cupressus macnabiana * (1)
  10. Cupressus torulosa * (2)
  11. Picea koraiensis *(2)
  12. Pinus attenuata * (6)
  13. Pinus coulteri * (2)
  14. Pinus eldarica * (1)
  15. Pinus koraiensis * (2)
  16. Pseudolarix amabilis (1)
  17. Sequoia sempervirens * (1)


October 2001

During this period, 87 seedlings representing 22 different species of conifers were planted in the various fields of the Arboretum. Persisting drought made it difficult to choose which species to plant.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (5 new species) :

  1. Abies georgei (1)
  2. Abies lowiana (6)
  3. Cupressus chengiana (1)
  4. Pinus arizonica (3)
  5. Pinus contorta bolanderi (2)
Species already in the Arboretum :
  1. Abies magnifica (3)
  2. Abies pindrow * (1)
  3. Araucaria araucana * (6)
  4. Austrocedrus chilensis * (1)
  5. Cedrus libani from Lebanon (41)
  6. Chamaecyparis lawsoniana * (1)
  7. Cupressus macnabiana * (1)
  8. Cupressus macrocarpa * (1)
  9. Cupressus sargentii * (2)
  10. Cupressus torulosa * (4)
  11. Picea mexicana (3)
  12. Picea morrisonicola (1)
  13. Pinus resinosa * (5)
  14. Sciadopitys verticillata (1)
  15. Torreya grandis (1)
  16. Torreya nucifera (1)
  17. Tsuga diversifolia (1)


July-August 2001

In Summer 2001, 83 seedlings representing 31 different species of conifers were planted in the various fields of the Arboretum. The month of August was dry. Most of the planting was done at the end of this month.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted

New introductions (7 new species) :

  1. Abies religiosa (1)
  2. Cupressus lusitanica * (6)
  3. Picea martinezii (1)        gift of the Botanical Garden of Geneva
  4. Picea morissonicola (1)
  5. Pinus reflexa (1)
  6. Pinus torreyana * (2)
  7. Taxodium mucronatum * (1)
Species already in the Arboretum :
  1. Abies magnifica (8)
  2. Araucaria angustifolia * (1)
  3. Cedrus libani Lebanon * (18)
  4. Cephalotaxus fortunei * (3)
  5. Chamaecyparis lawsoniana * (5)
  6. Cunninghamia lanceolata * (1)
  7. Cupressus bakeri * (1)
  8. Cupressus cashmeriana * (1)
  9. Cupressus macnabiana * (4)
  10. Cupressus pygmaea * (1)
  11. Cupressus sargentii * (1)
  12. Cupressus stephensonii * (1)
  13. Glyptostrobus pensilis (1)
  14. Juniperus monosperma * (2)
  15. Keteleeria davidiana (1)
  16. Larix occidentalis * (2)
  17. Picea chihuhuana * (1)
  18. Picea mexicana (1)
  19. Pinus cembra (6)
  20. Pinus strobiformis * (1)
  21. Pinus uncinata (4)
  22. Taxodium ascendens * (1)
  23. Torreya californica * (4)
  24. Tsuga diversifolia (1)


May 2001

A quick survey of the trees in the fields showed no damage whatsoever from morning frosts.

April 2001

In April, 101 seedlings representing 14 different species of conifers were planted in the various fields of the Arboretum. The total number of planted trees during the last year is 436. The next task for the coming year will be to reach 2'002 trees growing in the Arboretum. During the third week of April, the temperature went very low for the season, just below 0° C (maybe to −2° C at a higher altitude). No damage were visible in the nursery, but a later survey of the trees in the fields will be necessary, for many trees had already set new leaves (Abies pindrow, Tsuga chinensis, Cedrus libani [the ones from Lebanon are setting new leaves earlier than the other varieties], Abies cilicica, etc.). Fortunately there was no sunlight during the frost hours.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted
5.9 = pH measure when available

New introductions :

  1. Austrocedrus chilensis (1)
Species already in the Arboretum :
  1. Abies cilicica (7)
  2. Abies magnifica (1)
  3. Araucaria angustifolia * (1)
  4. Cedrus libani Lebanon (61) 6.9 & 7.4
  5. Cedrus libani Turkey (4)
  6. Cunninghamia lanceolata * (1)
  7. Cupressus cashmeriana * (2)
  8. Glyptostrobus pensilis (1)
  9. Pinus aristata * (1)
  10. Pinus cembroides (1)
  11. Pinus edulis * (2)
  12. Sciadopitys verticillata (1)
  13. Torreya californica * (17) 5.5 & 6.0


February-March 2001

In February, 53 seedlings representing 5 different species of conifers were planted in the various fields of the Arboretum. At the end of February the coldest temperature was recorded for the Winter 2000-2001 : −4° C. But at no moment the temperature remained below zero during daytime.
* species grown from seeds in the nursery of the Arboretum
(3) number of seedlings planted
5.9 = pH measure when available
Species already in the Arboretum :

  1. Abies procera (3) 5.7 to 6.1
  2. Cedrus libani Lebanon (39)
  3. Pinus bungeana (9)
  4. Taxodium ascendens (1)
  5. Taxodium distichum (1)


January 2001

In January, 87 seedlings representing 23 different species of conifers were planted in the various fields of the Arboretum. Two species were introduced for the first time.
* species grown from seeds in the nursery of the Arboretum
(2) number of seedlings planted
5.9 = pH measure when available

New introductions :

  1. Abies sachalinensis mayriana (1) 5.7
  2. Juniperus chinensis type * (2)
Species already in the Arboretum :
  1. Abies magnifica (2)
  2. Abies pindrow brevifolia (1)
  3. Cedrus libani Lebanon (35) 7.5 to 8.1
  4. Cephalotaxus harringtonii (5)
  5. Chamaecyparis thyoides * (1)
  6. Cunninghamia lanceolata * (3)
  7. Cupressus arizonica stephensonii * (1)
  8. Cupressus bakeri * (4) 5.7 & 6.1
  9. Cupressus cashmeriana * (7)
  10. Cupressus sempervirens horizontalis (2)
  11. Cupressus torulosa * (1)
  12. Fitzroya cupressoides (1)
  13. Picea omorika * (6)
  14. Picea smithiana * (1) 4.7
  15. Pinus bungeana * (2)
  16. Pinus patula * (5)
  17. Pinus rudis (2)
  18. Sciadopitys verticillata (2)
  19. Thuja koraiensis (1) 4.3
  20. Torreya nucifera (1)
  21. Tsuga chinensis * (1)


December 2000

In December, 36 seedlings representing 4 different species were planted in the various fields of the Arboretum.
* species grown from seeds in the nursery of the Arboretum
(2) number of seedlings planted
5.9 = pH measure when available

Species already in the Arboretum :

  1. Abies magnifica (16) 5.1 - 4.8 - 5.1 - 4.9
  2. Pinus rudis (17)
  3. Sequoiadendron giganteum (1)
  4. Torreya californica * (2)


October 2000

Although in August there was almost no rain, all seedlings planted in July in the most exposed sites (shallow soils, southern slope) made it through, confirming that it is possible to plant in the Arboretum at any time of the year (with the exception of a frozen soil in winter).

Seeds of Torreya californica sowed directly in the field (10 seeds for one place, 7 places) germinated successfully.

In October 48 seedlings representing 19 different species were planted in the various fields of the Arboretum, and among them 4 new species.
* species grown from seeds in the nursery of the Arboretum
(2) number of seedlings planted
5.9 = pH measure when available

New introductions :

  1. Chamaecyparis nootkatensis (2) 5.9 & 6.1
  2. Cupressus forbesii * (10) 5.5 & 5.1
  3. Juniperus excelsa * (2)
  4. Pinus strobiformis * (4) 5.5 & 5.5
Species already in the Arboretum :
  1. Abies cilicica (1) 7.3
  2. Abies lasiocarpa (1) 4.9
  3. Araucaria araucana * (8) 4.2
  4. Cedrus libani [Lebanon] (1) 6.6
  5. Chamacyparis pisifera 'Nana' (1) 6.3
  6. Cupressocyparis notabilis (1)
  7. Cupressus bakeri * (1)
  8. Cupressus benthamii * (1)
  9. Cupressus goveniana * (1)
  10. Picea pungens (1) 4.8
  11. Pinus coulteri * (1)
  12. Pinus flexilis * (2)
  13. Pinus muricata [Santa Barbara Co] * (7) 6.1 & 6.3
  14. Platycladus orientalis * (1)
  15. Torreya californica * (2)


July 2000

In July 111 seedlings representing 49 different species were planted in the various fields of the Arboretum, and among them 15 new species. Today the total amount of different species (including subspecies and varieties, but excluding cultivars) is superior to 200 taxa.
200 species for the year 2000 was an objective now completed.
* species grown from seeds in the nursery of the Arboretum
() number of seedlings planted
5.9 = pH measure when available

New introductions :

  1. Abies chensiensis (1) 5.9
  2. Cephalotaxus harringtonia (2)
  3. Fitzroya cupressoides (1) 5.5
  4. Juniperus monosperma * (1)
  5. Juniperus osteosperma * (1) 5.9
  6. Juniperus recurvata (1)
  7. Juniperus recurvata coxii (1)
  8. Juniperus scopulorum * (2) 6.6
  9. Juniperus silicicola * (2) 5.3 & 5.7
  10. Picea asperata notabilis (1)
  11. Picea wilsonii * (1) 5.6
  12. Pinus gerardiana * (3) 4.5
  13. Pinus maximartinezii * (1) 5.1
  14. Pseudotsuga menziesii caesia * (1) 6.6
  15. Widdringtonia cupressoides * (1) 6.1
Species already in the Arboretum :
  1. Abies cilicica (2)
  2. Abies concolor (6)
  3. Abies firma * (1) 5.6
  4. Abies numidica (4) 5
  5. Araucaria angustifolia * (3) 5.1
  6. Betula utilis jacquemontii (1)
  7. Cedrus libani Liban * (1)
  8. Chamaecyparis thyoides * (1) 5.7
  9. Cryptomeria japonica * (2)
  10. Cunninghamia konishii (1) 5.6
  11. Cunninghamia lanceolata * (4)
  12. Cupressus arizonica * (3)
  13. Cupressus arizonica stephensonii * (2)
  14. Cupressus bakeri * (3)
  15. Cupressus benthamii * (9) 5.9 & 5.3
  16. Cupressus cashmeriana * (2)
  17. Cupressus goveniana pygmaea * (3)
  18. Cupressus macnabiana * (8)
  19. Cupressus sargentii * (4) 6.5
  20. Ginkgo biloba (4)
  21. Glyptostrobus pensilis (1)
  22. Picea omorika * (3) 7.5
  23. Picea pungens (2)
  24. Picea smithiana * (1) 6.3
  25. Pinus flexilis * (1)
  26. Pinus jeffreyi * (3) 5.5
  27. Pinus ponderosa * (2) 5.4
  28. Pinus sabiniana * (4) 5.9
  29. Pinus uncinata (1) 8.1
  30. Prumnopitys andina (1) 5.5
  31. Pseudotsuga menziesii glauca * (5)
  32. Sciadopitys verticillata (1)
  33. Sequoia sempervirens * (1)
  34. Sequoiadendron giganteum (1) 5.4


2 May 2000

pH measures
Measures effectuated in the different fields of the Arboretum show a wide range of pH from as low as 4.1 to as high as 8.5.
Collection
The total of different species, subspecies and varieties in the Arboretum is 194.
Number of planted trees
Since the creation of the Arboretum, more than 1200 conifers have been planted in the different Units of the Arboretum.

In April the collection was completed with the following trees
(* species grown from seeds in the nursery of the Arboretum) :
New introductions :

  1. Araucaria angustifolia * (1)
  2. Juniperus virginiana * (12)
  3. Picea chihuahuana * (1)
  4. Picea koraiensis * (4)
  5. Pinus armandii * (2)
  6. Pinus engelmannii (1)
  7. Pinus hartwegii (1)
  8. Pinus michoacana * (1)
Species already in the Arboretum :
  1. Araucaria araucana * (12)
  2. Cryptomeria japonica * (11)
  3. Cunninghamia konishii (1)
  4. Ginkgo biloba * (1)
  5. Pinus attenuata * (14)
  6. Pinus koraiensis * (19)
  7. Pinus resinosa * (13)
  8. Pinus strobus * (4)
  9. Pinus tabulaeformis * (1)
  10. Pseudolarix kaempferii (2)
  11. Thuya orientalis * (4)


28 February 2000

In February the collection was completed with the following trees
(* species grown from seeds in the nursery of the Arboretum) :
New introductions :

  1. Abies firma * (2)
  2. Abies pindrow * (2)
  3. Pinus elliottii * (1)
  4. Pinus serotina * (1)
  5. Pinus strobus * (2)
  6. Pseudotsuga glauca * (5)
  7. Taxodium mucronatum * (1)
Trees already in the Arboretum :
  1. Abies pinsapo (8)
  2. Calocedrus decurrens (3)
  3. Chamaecyparis obtusa * (1)
  4. Cupressus cashmeriana * (1)
  5. Cupressus duclouxiana (1)
  6. Cupressus torulosa * (1)
  7. Keteleeria davidiana (1)
  8. Larix kaempferi (1) - gift from the Horticultural School of Geneva, Mr. Verdel.
  9. Picea engelmannii (3)
  10. Picea gemmata (1)
  11. Picea purpurea (3)
  12. Picea smithiana * (1)
  13. Pinus attenuata * (2)
  14. Pinus bungeana (1) - gift from the Arboretum of Freiburg - Germany, Mr. Rainer Oberle.
  15. Pinus densiflora * (3)
  16. Pinus edulis * (3)
  17. Pinus patula * (4)
  18. Pinus resinosa * (14)
  19. Pinus tabulaeformis * (2)
  20. Pseudolarix amabilis (1)
  21. Sequoiadendron giganteum (2)
  22. Taxodium ascendens * (6)
  23. Torreya californica * (5)


11 January 2000

In December-January the collection was completed with the following trees
(* species grown from seeds in the nursery of the Arboretum) :
New introductions :

  1. Abies phanerolepis (1)
  2. Picea glauca * (3)
  3. Picea likiangensis (1)
  4. Pinus banksiana * (2)
  5. Pinus flexilis * (2)
  6. Pinus rigida * (3)
  7. Torreya nucifera (1)
Trees already in the Arboretum :
  1. Abies cilicica (4)
  2. Abies delavayi * (1)
  3. Abies recurvata (1)
  4. Chamaecyparis thyoides * (2)
  5. Cryptomeria fortunei * (17)
  6. Cryptomeria japonica * (1)
  7. Cunninghamia konishii (1)
  8. Cunninghamia lanceolata * (4)
  9. Cupressus bakeri * (2)
  10. Cupressus duclouxiana (1)
  11. Cupressus pygmaea * (2)
  12. Cupressus sargentii * (3)
  13. Cupressus sempervirens (1)
  14. Metasequoia glyptostroboides * (7)
  15. Picea mexicana (1)
  16. Picea omorika * (1)
  17. Picea sitchensis (3)
  18. Pinus cembra (2)
  19. Pinus coulteri * (18)
  20. Pinus heldreichii (=leucodermis) (5)
  21. Pinus lambertiana * (1)
  22. Pinus peuce (2)
  23. Pinus ponderosa * (1)
  24. Pinus resinosa * (6)
  25. Pinus sabiniana * (2)
  26. Sciadopitys verticillata (2)
  27. Sequoia sempervirens * (5)
  28. Sequoiadendron giganteum (2)
  29. Thuja plicata (2)
  30. Torreya californica * (6)
  31. Torreya taxifolia (1)
  32. Tsuga chinensis (1)


24 October 1999

In October the collection was completed with the following trees (* species grown from seeds in the nursery of the Arboretum) :

  1. Abies amabilis (1)
  2. Abies cephalonica (1)
  3. Abies cilicica (7)
  4. Abies pinsapo (4)
  5. Araucaria araucana (4)
  6. Calocedrus formosana (1)
  7. Cedrus brevifolia * (1)
  8. Cedrus brevifolia * (2)
  9. Chamaecyparis obtusa * (1)
  10. Cryptomeria sinensis * (12)
  11. Cunninghamia lanceolata * (2)
  12. Cupressus bakeri * (1)
  13. Cupressus macrocarpa * (1)
  14. Pinus lambertiana * (1)
  15. Pinus sabiniana * (3)
  16. Prumnopitys andina (1)
  17. Pseudolarix amabilis (3)
  18. Pseudotaxus chienii (2)
  19. Sequoia sempervirens * (6)
  20. Taxodium ascendens * (2)
New introductions :
  1. Abies spectabilis (1)
  2. Cupressus arizonica stephensonii * (1)
  3. Cupressus benthamii * (2)
  4. Cupressus duclouxiana (1)
  5. Cupressus goveniana * (1)
  6. Glyptostrobus pensilis (1)
  7. Keteleeria evelyniana (2) - a gift from the Arboretum of Freiburg - Germany, Mr. Nimsch.
  8. Larix occidentalis * (2)
  9. Pinus culminicola (2)
  10. Pinus morissonicola (1)
  11. Pinus taiwanensis (1)


2 August 1999

In July the collection was completed with the following trees (* species grown from seeds in the nursery) :

  1. Araucaria araucana * (8)
  2. Calocedrus decurrens (2)
  3. Metasequoia glyptostroboides * (1)
  4. Picea alcoquiana (2)
  5. Pinus aristata * (1)
  6. Pinus coulteri * (5)
  7. Pinus jeffreyi * (2)
  8. Pinus lambertiana * (3)
  9. Sequoia sempervirens (1)
  10. Taxus baccata (2)
  11. Thuja plicata (1)
New introductions :
  1. Cupressus arizonica arizonica * (1)
  2. Cupressus arizonica glabra * (1)
  3. Cupressus arizonica nevadensis * (1)
  4. Cupressus macnabiana * (1)
  5. Cupressus pygmaea * (1)
  6. Cupressus sargentii * (1)


11 April 1999

At Easter 41 more trees were planted (no new introduction) :

  1. Abies balsamea (1)
  2. Abies magnifica (1)
  3. Abies squamata (1)
  4. Araucaria araucana * (5)
  5. Cedrus libani (Turkey) (30)
  6. Cephalotaxus harringtonia koreana * (1)
  7. Juniperus drupacea (1)
  8. Sciadopitys verticillata (1)
After a very long Winter, a short survey was conducted to see the consequences of an early deep frost (­10°C) and of repeated frosts for 4 months. All Pinus canariensis left outside are dead, as well as all Callitris tasmanica and Fitzroya cupressoides. The Pinus michoacana look very poor, with only a tiny hope of recovery for some seedlings. The Pinus massionana are doing rather well, while the Pinus patula and the Pinus montezumae are fine. A good surprise is the perfect aspect of Cunninghamia lanceolata, Saxegothea conspicua and of all species from Taiwan planted in the Arboretum : Cunninghamia konishii, Calocedrus formosana, Abies kawakamii, Taiwania cryptomeroides.
In the nursery (outside) all Podocarpus henkelii are dead and one Pinus maximartinezii out of 6 is surviving.



3 January 1999

During the last week of 1998, 80 trees were planted in the different Units of the Arboretum.
Here is the list of the species introduced for the first time (* species grown from seeds in the nursery) :

  1. Abies fraseri
  2. Abies gamblei
  3. Callitris tasmanica *
  4. Cephalotaxus harringtonia koreana *
  5. Cryptomeria japonica sinensis *
  6. Cupressocyparis notabilis
  7. Picea gemmata
  8. Picea montigena
  9. Picea smithiana *
  10. Pseudotaxus chienii
  11. Tsuga chinensis
  12. Tsuga diversifolia

Other species planted to complete the collection :

  1. Cupressus dupreziana (4x) - a gift from the INRA Antibes, Mrs Andreoli - France.
  2. Metasequoia glyptostroboides (4x) *
  3. Pinus attenuata (3x) *
  4. Pinus edulis (10x) *
  5. Pinus koraienssis (3x) *
  6. Pinus leucodermis (2x)
  7. Pinus resinosa (3x) *
  8. Sequoia sempervirens (4x)
  9. Sequoiadendron giganteum (2x)
  10. Taxus baccata (6x) - a gift from the Arboretum of Freiburg - Germany.
    ...
During Fall the first serious frost came early (November) and the temperatures went as low as -10°C. Some dammages were observed on Pinus canariensis, Pinus michoacana and one newly planted Keteleeria davidiana. All other species seem to do well (even if it is to early to draw a conclusion), especially Pinus massoniana, Pinus patula, Calocedrus formosana and Cunninghamia konishii.



2 November 1998

During the last week of October, some 63 trees were planted in the different Units of the Arboretum. Here is the list of the species introduced for the first time :

  1. Calocedrus formosana
  2. Cedrus brevifolia *
  3. Cunninghamia konishii
  4. Cunninghamia lanceolata (type and 'Glauca')
  5. Picea alcoquiana (= P. bicolor)
  6. Picea engelmannii mexicana (= P. mexicana)
  7. Pinus jeffreyi *
  8. Pinus lambertiana *
  9. Pinus mugo mughus
  10. Pinus mugo pumilio
  11. Prumnopitys andina (= Podocarpus andinus)
  12. Taxus brevifolia
  13. Torreya taxifolia

More and more seedlings are planted that were grown in the nursery of the Arboretum (with the number of seedlings) :

Four different clones of Cupressus dupreziana (the Cypress of the Sahara Desert) - a gift from the INRA Centre d'Antibes in France, Mrs Andreoli - were also planted.

After a rain deficit during the Winter, Spring and Summer 1998, the months of September and October were quite rainy : 105 mm and 86 mm respectively, allowing most of the young trees to recover at the very end of the growing season.

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