In 2008 I did make cross pollination of about 550 flowers, both with pollen from my own plants and with pollen from friends from around the world. I wish to send my special thanks to: Tim Behan (U.S.A.) , Thomas Beouf (D), Sascha Swatek (D), Sascha Weissbeck (D), Ruud Wouterson (NL), Steen Stjerne (DK) and Mark van Zwet (NL), whom all did send me pollen for the experiments, I am very happy for their support and help in this project. I were also so fortunate that I were allowed to pollinate and collect pollen from a special trunk forming Yucca which were growing in a garden in a village close by our home, Many thanks to Inger and Bendt. This Yucca is not 100 % identified yet, but it could be the plant known as Yucca gloriosa [var. robusta]. It had very good pollen and were VERY receptacle for pollen from most species/forms which I used on it, further on in this page it will be listed as Yucca sp. "Hæstrupvej".
The weather conditions for pollination of Yuccas were not perfect in the blooming season, the first flower to open were Yucca angustissima ssp. kanabensis (June 28), but I did not have any other pollen to pollinate it with until the 7th. flower opened and I had received pollen from Thomas Beouf (D) and Steen Stjerne (DK). The weather changed in early July and there were many rainy days, then there were a rather long period with temperatures above 25 C, and it seems as the best time for pollination is in the late afternoon and early evening on a dry day with temperature above 15 C in the night and below 25 C in the days. I still have a lot of notes to evaluate, until I can give a more detailed description of the best weather conditions for pollination of Yuccas. Due to the cold wet weather quite a few fruits did die while they did get fungus or they did not grow to maturity before the fist frost. Flowers pollinated after July 26-27 did fail to finish.
Of the about 550 pollination's in my own garden, and on the plant the private garden in the village close by, did I get 77 fruits with good seeds and a total of 40 new Yucca hybrids, most of them involving a trunk forming Yucca species/form.
If you want to see photos of the parents you
can see them all here or click on the individual links.
# | Seed donor | x | Pollen donor | BMJ
#
seed donor |
x | BMJ # | Date | Time | Weather
when pollinated |
#
of
seeds |
Notes |
---|---|---|---|---|---|---|---|---|---|---|---|
2115 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca "Jensen Hybrid" # 1823 (Pollen from Steen Stjerne) | 2076 | x | 1823 | 2008-07-11 | 1245 | sun | 40 | |
2116 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca "Jensen Hybrid" # 1823 (Pollen from Steen Stjerne) | 2076 | x | 1823 | 2008-07-11 | 1240 | sun | 31 | |
2117 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca #500 | 2076 | x | 500 | 2008-07-24 | 2010 | sun | 37 | |
2118 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca #500 | 2076 | x | 500 | 2008-07-22 | 2035 | sun | 38 | |
2152 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca #500 | 2076 | x | 500 | 2008-07-24 | 2011 | sun | 64 | |
2119 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca arkansana (media leafed form) | 2076 | x | 870B | 2008-07-24 | 1944 | sun | 52 | |
2120 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca arkansana (media leafed form) | 2076 | x | 870B | 2008-07-24 | 1945 | sun | 50 | |
2121 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Bright Edge' | 2076 | x | 818 | 2008-07-24 | 1952 | sun | 26 | |
2122 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca elata (Pollen from Ruud Wouterson) | 2076 | x | 2008-07-22 | 2039 | sun | 55 | ||
2123 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca elata (Pollen from Ruud Wouterson) | 2076 | x | 2008-07-27 | 2040 | sun | 35 | ||
2124 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Elegantissima' | 2076 | x | 1581 | 2008-07-24 | 2021 | sun | 43 | |
2125 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Elegantissima' | 2076 | x | 1581 | 2008-07-24 | 2022 | sun | 74 | |
2126 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Elegantissima' | 2076 | x | 1581 | 2008-07-26 | 2019 | sun | 46 | |
2127 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca filamentosa (Franklin Co., North Carolina) | 2076 | x | 2036 | 2008-07-09 | 1910 | 52 | ||
2128 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca filamentosa (Franklin Co., North Carolina) | 2076 | x | 2036 | 2008-07-10 | 1600 | 59 | ||
2129 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca filamentosa (garden form) | 2076 | x | 1578 | 2008-07-11 | 1245 | 50 | ||
2130 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca hybrid #1402 [big "blue" form of Y. filamentosa ?] | 2076 | x | 1402 | 2008-07-22 | 2043 | sun | 66 | |
2131 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca hybrid #1402 [big "blue" form of Y. filamentosa ?] | 2076 | x | 1402 | 2008-07-24 | 2014 | sun | 47 | |
2132 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca hybrid #1402 [big "blue" form of Y. filamentosa ?] | 2076 | x | 1402 | 2008-07-24 | 2013 | sun | 66 | |
2133 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca hybrid #1402 [big "blue" form of Y. filamentosa ?] | 2076 | x | 1402 | 2008-07-26 | 2030 | sun | 46 | |
2134 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca filamentosa ? Concordia, Kansas, fh 1178.54 | 2076 | x | 784C | 2008-07-24 | 2005 | sun | ||
2135 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca filamentosa ? Concordia, Kansas, fh 1178.54 | 2076 | x | 784C | 2008-07-22 | 2031 | 53 | ||
2136 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca filamentosa ? Concordia, Kansas, fh 1178.54 | 2076 | x | 784C | 2008-07-24 | 2004 | 59 | ||
2137 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca filamentosa ?, very small flowers | 2076 | x | 1334 | 2008-07-22 | 2053 | sun | 61 | |
2138 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Filata Behan's #3' (Pollen from Tim Behan) | 2076 | x | 2008-07-22 | 2020 | sun | 14 | fruit deformed. | |
2139 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca flaccida | 2076 | x | 49 | 2008-07-24 | 1957 | sun | 47 | |
2140 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca flaccida | 2076 | x | 49 | 2008-07-22 | 2050 | 59 | ||
2141 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca flaccida [forma glaucescens] | 2076 | x | 1766 | 2008-07-22 | 2037 | sun | 44 | |
2142 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca flaccida [forma glaucescens] | 2076 | x | 1766 | 2008-07-24 | 2034 | sun | 71 | |
2143 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Golden Sword' | 2076 | x | 817 | 2008-07-11 | 1540 | 23 | ||
2144 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Golden Sword' | 2076 | x | 817 | 2008-07-22 | 2020 | sun | 26 | |
2145 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Karlsruhensis type 2' | 2076 | x | 1454 | 2008-07-22 | 2015 | sun | 36 | |
2146 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Karlsruhensis type 2' | 2076 | x | 1454 | 2008-07-22 | 2016 | sun | 55 | |
2147 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Karlsruhensis type 2' | 2076 | x | 1454 | 2008-07-22 | 2017 | sun | 48 | |
2148 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Karlsruhensis type 2' | 2076 | x | 1454 | 2008-07-26 | 2000 | sun | 37 | |
2149 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca 'Karlsruhensis type 2' | 2076 | x | 1454 | 2008-07-24 | 2018 | 38 | ||
2150 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca rostrata (Pollen from Ruud Wouterson) | 2076 | x | 2008-07-22 | 2025 | sun | 40 | ||
2151 | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | x | Yucca rostrata (Pollen from Ruud Wouterson) | 2076 | x | 2008-07-24 | 2026 | sun | 14 | fruit deformed. | |
2086 | Yucca angustissima ssp. kanabensis | x | Yucca "Jensen Hybrid" # 1823 (Pollen from Steen Stjerne) | 337C | x | 1823 | 2008-07-02 | 2040 | Sun and warm | 200 | |
2087 | Yucca angustissima ssp. kanabensis | x | Yucca filamentosa (Stjerne) | 337C | x | 1465B | 2008-07-01 | 2050 | Sun and warm | 200 | |
2113 | Yucca arkansana (media leafed form) | x | Yucca arkansana (media leafed form) | 870B | x | 870B | 300 | Self pollinated!, seeds maybe not fully mature? | |||
2114 | Yucca arkansana (media leafed form) | x | Yucca 'Elegantissima' | 870B | x | 1581 | 2008-07-29 | 0728 | Sun and warm | 50 | |
2094 | Yucca 'Bright Edge' | x | Yucca elata (Pollen from Ruud Wouterson) | 818 | x | 2008-07-21 | 1955 | sun | 100 | ||
2095 | Yucca 'Bright Edge' | x | Yucca elata (Pollen from Ruud Wouterson) | 818 | x | 2008-07-21 | 1953 | sun | 100 | ||
2096 | Yucca 'Bright Edge' | x | Yucca 'Karlsruhensis type 2' | 818 | x | 1454 | 2008-07-23 | 0900 | Sun and warm | 50 | |
2097 | Yucca 'Bright Edge' | x | Yucca 'Karlsruhensis type 2' | 818 | x | 1454 | 2008-07-25 | 2041 | Sun and warm | 50 | |
2098 | Yucca 'Bright Edge' | x | Yucca rostrata (Pollen from Ruud Wouterson) | 818 | x | 2008-07-21 | 1951 | sun | 23 | The fruit deformed. | |
2102 | Yucca 'Elegantissima' | x | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | 1581 | x | 2076 | 2008-07-25 | 2053 | Sun and warm | 15 | |
2103 | Yucca 'Elegantissima' | x | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | 1581 | x | 2076 | 2008-07-25 | 2051 | Sun and warm | 50 | |
2232 | Yucca 'Elegantissima' | x | Yucca 'Karlsruhensis type 2' | 1581 | x | 1454 | 2008-07-25 | 2042 | Sun and warm | - | (seeds maybe not fully mature?) |
2233 | Yucca 'Elegantissima' | x | Yucca flaccida [forma glaucescens] | 1581 | x | 1766 | 2008-07-29 | 0710 | Sun and warm | - | (seeds maybe not fully mature?) |
2089 | Yucca filamentosa | x | Yucca angustissima ssp. kanabensis | 1578 | x | 337C | 2008-07-14 | 0845 | sun | 50 | |
2090 | Yucca filamentosa | x | Yucca flaccida | 1578 | x | 49 | 2008-07-21 | 1945 | sun | 50 | |
2091 | Yucca filamentosa | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1578 | x | 2008-07-20 | 1310 | rain | 8 | The fruit were deform. Potted plant moved inside the greenhouse july 19th | |
2092 | Yucca filamentosa | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1578 | x | 2008-07-22 | 2031 | sun | 100 | ||
2093 | Yucca filamentosa | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1578 | x | 2008-07-22 | 2030 | sun | 15 | ||
2099 | Yucca filamentosa ?, very small flowers | x | Yucca angustissima ssp. kanabensis | 1334 | x | 337C | 2008-07-13 | 1345 | sun | 100 | Potted plant moved inside the greenhouse july 19th |
2100 | Yucca filamentosa ?, very small flowers | x | Yucca elata (Pollen from Ruud Wouterson) | 1334 | x | 2008-07-20 | 1350 | rain | 100 | Potted plant moved inside the greenhouse july 19th | |
2101 | Yucca filamentosa ?, very small flowers | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1334 | x | 2008-07-20 | 1342 | rain | 55 | Potted plant moved inside the greenhouse july 19th | |
2104 | Yucca flaccida [forma glaucescens] | x | ? | 1766 | x | 500 | 4 fruits which were self pollinated. | ||||
2105 | Yucca flaccida [forma glaucescens] | x | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | 1766 | x | 2076 | 2008-07-23 | 1800 | sun | 50 | |
2106 | Yucca flaccida [forma glaucescens] | x | Yucca angustissima ssp. kanabensis | 1766 | x | 337C | 2008-07-13 | 1230 | sun | 50 | |
2107 | Yucca flaccida [forma glaucescens] | x | Yucca elata (Pollen from Ruud Wouterson) | 1766 | x | 2008-07-23 | 1748 | sun | 75 | ||
2108 | Yucca flaccida [forma glaucescens] | x | Yucca elata (Pollen from Ruud Wouterson) | 1459 | x | 2008-07-20 | 1400 | rain | 100 | Potted plant moved inside the greenhouse july 19th | |
2109 | Yucca flaccida [forma glaucescens] | x | Yucca elata (Pollen from Ruud Wouterson) | 1459 | x | 2008-07-20 | 1355 | rain | 150 | Potted plant moved inside the greenhouse july 19th | |
2108 | Yucca flaccida [forma glaucescens] | x | Yucca filamentosa (red flower stalk and buds) | 1459 | x | 1336C | 2008-07-28 | 2200 | 100 | seeds maybe not fully mature? | |
2110 | Yucca flaccida [forma glaucescens] | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1459 | x | 2008-07-20 | 1400 | rain | 45 | Potted plant moved inside the greenhouse july 19th | |
2111 | Yucca flaccida [forma glaucescens] | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1459 | x | 2008-07-20 | 1356 | rain | 7 | The fruit were deform. Potted plant moved inside the greenhouse july 19th | |
2088 | Yucca 'Golden Sword' | x | Yucca angustissima ssp. kanabensis | 817 | x | 337C | 2008-07-06 | 2040 | clouded | 100 | |
2078 | Yucca 'Karlsruhensis type 2' | x | Yucca sp. [gloriosa forma robusta] "Hæstrupvej" | 1454 | x | 2076 | 2008-07-13 | 1350 | sun | 12 | The fruit were deform. Potted plant moved inside the greenhouse july 19th |
2079 | Yucca 'Karlsruhensis type 2' | x | Yucca "Jensen Hybrid" # 1823 (Pollen from Steen Stjerne) | 1454 | x | 1823 | 2008-07-13 | 1400 | sun | 20 | |
2080 | Yucca 'Karlsruhensis type 2' | x | Yucca angustissima ssp. kanabensis | 1454 | x | 337C | 2008-07-02 | 2300 | Sun and warm | 50 | |
2081 | Yucca 'Karlsruhensis type 2' | x | Yucca angustissima ssp. kanabensis | 1454 | x | 337C | 2008-07-20 | 1412 | rain | 4 | Potted plant moved inside the greenhouse july 19th |
2082 | Yucca 'Karlsruhensis type 2' | x | Yucca angustissima ssp. kanabensis | 1454 | x | 337C | 2008-07-20 | 1413 | rain | 5 | Potted plant moved inside the greenhouse july 19th |
2112 | Yucca 'Karlsruhensis type 2' |
|
Yucca filamentosa (red flower stalk and buds) | 1454 | x | 1336C | |||||
2083 | Yucca 'Karlsruhensis type 2' | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1454 | x | 2008-07-20 | 1405 | rain | 6 | Potted plant moved inside the greenhouse july 19th | |
2084 | Yucca 'Karlsruhensis type 2' | x | Yucca rostrata (Pollen from Ruud Wouterson) | 1454 | x | 2008-07-20 | 1402 | rain | 10 | Potted plant moved inside the greenhouse july 19th | |
2085 | Yucca 'Karlsruhensis type 2' | x | Yucca rostrata forma viridis (Sascha Weissbeck) | 1454 | x | 2008-07-13 | 1340 | sun | 5 | The fruit were deform. Potted plant moved inside the greenhouse july 19th | |
2154 | Yucca hybrid #1402 [big "blue" form of Y. filamentosa ?] | x | Yucca #500 | 1402 | x | 500 | 2008-07-24 | 1440 | sun | ||
2153 | Yucca hybrid #1402 [big "blue" form of Y. filamentosa ?] | x | Yucca 'Karlsruhensis type 2' | 1402 | x | 1454 | 2008-07-24 | 1422 | sun |
I really look forward to sow the seeds in the spring of 2009, and to follow the seedlings grow to mature plants. Of course do I have specially hopes for those hybrids, which eventually may a trunk, as there are so few trunk forming Yuccas, which can be cultivated up here in northern Denmark (lat. 57.5).
Plants from the above pollination's will not be available until in the summer of 2015 at the earliest! There will not be offered seeds of the above hybrids!
Read about the "Jensen hybrids"
of 2003.
Read about the "Jensen hybrids"
of 2004.
Read about the hybrids of 2009.
Learn how to make your own
Yucca hybrids.
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Hjørring
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