Variegated Yucca hybrids


Variegated ornamental plants are very popular, this is also true when it comes to Yucca plants, but the number of plants available is very limited.

List of known variegated Yuccas.
Photos of my own variegated Yuccas.
Photos from friends of variegated Yuccas.

New variegated Yuccas made in tissue culture.
The number of available variegated Yucca forms will change within a few years, as I in 2004 donated a lot of hybridseeds to Robert Wellens owner of the Dutch tissue culture laboratory: Succulent Tissue Culture (STC). Robert Wellens has found a way to introduce variegation to plants. The first stage cleaning the seeds for bacteria, fungus etc. and sow the seeds in vitro were a success with 100 % germination in all but one seed batch.

The seeds were sown in-vitro in April 2004, and introduced to variegation on May 26. 2004.
 
Yucca 'Jensen + Wellens variegate hybrid, (1461 Yucca glauca X 49 Yucca flaccida) Jensen #1819 - Wellens #Y-04. Yucca 'Jensen + Wellens variegate hybrid, (1465A Yucca filamentosa hybrid x 1461 Yucca glauca), Jensen #1821 - Wellens #Y-02. Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1797 - Wellens #Y-14.
Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1582 Yucca 'Ivory'), Jensen #1790 - Wellens #Y-16. Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1784 - Wellens #Y-17. Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1781 - Wellens #Y-20.
The photos above is from September 18th. 2004, and it is easy to see that many of the plants are variegated. Copyright 2004 Robert Wellens, Succulent Tissue Culture, The Netherlands.

The plants that didn't get variegated the first time, were treated with the chemical one more, for another try, this time for white variegation!

Unfortunately did quite a lot of the treated plants, revert back to normal green leaves, but a few remained variegated.

The following species, forms and hybrids are used in the experiment:

Seeds from hybrids that I made in the summer of 2003 in my garden.

#1780 Yucca hybrid (49 Yucca flaccida x 1461 Yucca glauca) 25 seeds.
#1781 Yucca hybrid (49 Yucca flaccida x 1461 Yucca glauca) 25 seeds.
#1782 Yucca hybrid (49 Yucca flaccida x 1461 Yucca glauca) 25 seeds.
#1783 Yucca hybrid (49 Yucca flaccida x 1461 Yucca glauca) 25 seeds.
#1784 Yucca hybrid (49 Yucca flaccida x 1461 Yucca glauca) 25 seeds.
#1790 Yucca hybrid (49 Yucca flaccida x  x Yucca 'Ivory') 25 seeds.
#1792 Yucca hybrid (500 Yucca hybrid x 332 Yucca filamentosa) 25 seeds.
#1797 Yucca hybrid (500 Yucca hybrid x 1461 Yucca glauca) 25 seeds.
#1798 Yucca hybrid (500 Yucca hybrid x 1461 Yucca glauca) 25 seeds.
#1799 Yucca hybrid (500 Yucca hybrid x 1461 Yucca glauca) 25 seeds.
#1800 Yucca hybrid (500 Yucca hybrid x 1461 Yucca glauca 25 seeds.
#1808 Yucca hybrid (49 Yucca flaccida x 1402 Yucca hybrid?) 25 seeds.
#1814 Yucca hybrid (1402 Yucca hybrid? x 1461 Yucca glauca) 25 seeds.
#1815 Yucca hybrid (1402 Yucca hybrid? x 1461 Yucca glauca) 25 seeds.
#1816 Yucca hybrid (1402 Yucca hybrid? x 1461 Yucca glauca) 25 seeds.
#1817 Yucca hybrid (1402 Yucca hybrid? x 1461 Yucca glauca) 25 seeds.
#1818 Yucca hybrid (1461 Yucca glauca x 1402 Yucca hybrid?) 25 seeds.
#1819 Yucca hybrid (1461 Yucca glauca x 49 Yucca flaccida) 25 seeds.
#1820 Yucca hybrid (1461 Yucca glauca x 332 Yucca filamentosa) 10 seeds.
#1821 Yucca hybrid (1465A Yucca filamentosa hybrid? x 1461 Yucca glauca) 25 seeds.
#1822 Yucca hybrid (1465A Yucca filamentosa hybrid? x 1461 Yucca glauca) 25 seeds.

And the rest were:

Yucca brevifolia, collected at Beaver Dam Mountains sw. Utah, by Robert Johnson (Intermountain cactus) 20-30 seeds.
Yucca baccata, collected at Rio Rancho, New Mexico. 15-20 seeds.
#1337 Yucca sp. filamentosa? collected in a garden in Wisconsin. 40+ seeds.
#1364 Yucca sp. flaccida or filamentosa ssp. smalliana?, collected in a garden in Ohio. 300+ seeds
#1468 Yucca flaccida forma glaucescens, collected in a garden in Virginia. 150+ seeds.

In September 2005 I had the following plants in cultivation here in Denmark, all were sown in-vitro in 2004:

2020A Yucca 'Jensen + Wellens variegate hybrid, (1461 Yucca glauca X 332 Yucca filamentosa), Jensen #1820 - Wellens #Y-03.
2020B Yucca 'Jensen + Wellens variegate hybrid, (1461 Yucca glauca X 332 Yucca filamentosa), Jensen #1820 - Wellens #Y-03.
2021    Yucca 'Jensen + Wellens variegate hybrid, (1465A Yucca filamentosa hybrid x 1461 Yucca glauca), Jensen #1821 - Wellens #Y-02.
2022A Yucca 'Jensen + Wellens variegate hybrid, (1461 Yucca glauca X 49 Yucca flaccida) Jensen #1819 - Wellens #Y-04.
2022B Yucca 'Jensen + Wellens variegate hybrid, (1461 Yucca glauca X 49 Yucca flaccida), Jensen #1819 - Wellens #Y-04.
2022C Yucca 'Jensen + Wellens variegate hybrid, (1461 Yucca glauca X 49 Yucca flaccida),  Jensen #1819 - Wellens Y-04.
2022D Yucca 'Jensen + Wellens variegate hybrid, (1461 Yucca glauca X 49 Yucca flaccida), Jensen #1819 -Wellens #Y-04.
2023A Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca), Jensen #1817 - Wellens #Y-06.
2023B Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca), Jensen #1817 - Wellens #Y-06.
2024A Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca), Jensen #1816 - Wellens "Y-07.
2024B Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca), Jensen #1816 - Wellens "Y-07.
2025A Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca),  Jensen #1815 - Wellens #Y-08.
2025B Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca),  Jensen #1815 - Wellens #Y-08.
2026A Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1800 - Wellens #Y-11.
2026B Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1800 - Wellens #Y-11.
2026C Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1800 - Wellens #Y-11.
2027A Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1799 - Wellens #Y-12.
2027B Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1799 - Wellens #Y-12.
2028A Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen # 1798 - Wellens #Y-13.
2028B Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen # 1798 - Wellens #Y-13.
2028C Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen # 1798 - Wellens #Y-13.
2028D Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen # 1798 - Wellens #Y-13.
2029A Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1797 - Wellens #Y-14.
2029B Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1797 - Wellens #Y-14.
2030    Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 332 Yucca filamentosa), Jensen #1792 - Wellens #Y-15.
2031A Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1582 Yucca 'Ivory'), Jensen #1790 - Wellens #Y-16.
2031B Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1582 Yucca 'Ivory'), Jensen #1790 - Wellens #Y-16.
2032A Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1784 - Wellens #Y-17.
2032B Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1784 - Wellens #Y-17.
2033    Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1783 - Wellens #Y-18.
2034A Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1782 - Wellens #Y-19.
2034B Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1782 - Wellens #Y-19.
2035A Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1781 - Wellens #Y-20.
2035B Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1781 - Wellens #Y-20.
2035C Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1781 - Wellens #Y-20.


Unfortunately did many of the artificial variegated plants revert to the normal green form, but the following 9 plants are still very nice variegated:

2021    Yucca Jensen + Wellens variegated hybrid (Yucca filamentosa x glauca).
2023A Yucca Jensen + Wellens variegated hybrid (Yucca hybrid #1402 X glauca).
2024A Yucca Jensen + Wellens variegated hybrid (Yucca hybrid #1402 X glauca).
2027A Yucca Jensen + Wellens variegated hybrid (Yucca hybrid #500 X glauca).
2029A Yucca Jensen + Wellens variegated hybrid (Yucca hybrid #500 X glauca).
2029B Yucca Jensen + Wellens variegated hybrid (Yucca hybrid #500 X glauca).
2032A Yucca Jensen + Wellens variegated hybrid (Yucca flaccida X glauca).
2034A Yucca Jensen + Wellens variegated hybrid (Yucca flaccida X glauca).
2035C Yucca Jensen + Wellens variegated hybrid (Yucca flaccida X glauca)
 
2021    Yucca 'Jensen + Wellens variegate hybrid, (1465A Yucca filamentosa hybrid x 1461 Yucca glauca), Jensen #1821 - Wellens #Y-02. 2024A Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca), Jensen #1816 - Wellens "Y-07. 2027A Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1799 - Wellens #Y-12.
2029A Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1797 - Wellens #Y-14. 2032A Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1784 - Wellens #Y-17. 2035C Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1781 - Wellens #Y-20.
2029B Yucca 'Jensen + Wellens variegate hybrid, (500 Yucca hybrid #500 x 1461 Yucca glauca), Jensen #1797 - Wellens #Y-14. 2034A Yucca 'Jensen + Wellens variegate hybrid, (49 Yucca flaccida x 1461 Yucca glauca), Jensen #1782 - Wellens #Y-19 2023A Yucca 'Jensen + Wellens variegate hybrid, (1402 Yucca hybrid #1402 X 1461 Yucca glauca), Jensen #1817 - Wellens #Y-06.

I will update this page, when there are news about this interesting experiment, and also the pages with the individual plants:

Here are some photos of the first cuttings:
 
Photo from July 17th. 2009 Photo from August 29th. 2009

In 2010 the best forms, which is the most promising of the new variegated Yucca hybrids, will be tested in tissue cultivation in USA, a joint venture project with the well know nursery Plant Delights Nursery in North Carolina.


"Natural" variegation in a Yucca hybrid:

In the fall of 2008, I did find a plant among all my Yucca hybrid seedlings.
 
#1784 Yucca "Jensen hybrid" variegated 
(49 Yucca flaccida x 1461 Yucca glauca) this one did I "find" among 700 hybrid seedlings.		 #1784 Yucca "Jensen hybrid" variegated 
(49 Yucca flaccida x 1461 Yucca glauca) this one did I "find" among 700 hybrid seedlings.		 #1784 Yucca "Jensen hybrid" variegated 
(49 Yucca flaccida x 1461 Yucca glauca) this one did I "find" among 700 hybrid seedlings.


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