Mark grows a variously kind of plants, but have been moving twice in 5 years, so most of his Yucca plants are mainly kept in pots. As he does not have a place to store his plants for the winter, they are kept outside all year. This cultivation method does give problems with the more sensitive species of Yucca, which may loose their roots or the rosettes.

Climate:

Mark live in the eastern part of the Netherlands and according to the winter temperatures map in the book "The Tropical Look" he live on the border of a Z7, Z8 zone.

Mark's Yucca collection

Yucca X floribunda? (Sprenger hybrid)
Yucca gloriosa "variegata"
Yucca gloriosa
Yucca gloriosa variety ?
Yucca 'Vittorio Emanuele II' (only a rhizome)
Yucca recurvifolia
Yucca recurvifolia "Marginata" (yellow edges)
Yucca recurvifolia hybrid? (Giant with very long leaves, up to 1,10 m long, 8 cm width)

Pictures:

Yucca Xfloribunda.
One of Mark's Yucca plants.
Copyright ©2003-2005 Mark van Zwet.

A beautiful blooming plant of Yucca Xfloribunda. in Mark van Zwet garden in The Netherlands. Mark's plant looks very much like Yucca gloriosa?
Copyright ©2003-2005 Mark van Zwet.

Yucca recurvifolia Huge form.
Photo taken in an garden in Mark's neighborhood.
Copyright ©2003-2005 Mark van Zwet

Yucca gloriosa (nobilis?)
Photo taken at the Botanical Garden of the Vrije Universiteit Amsterdam.
Copyright ©2003-2005 Mark van Zwet

Yucca filamentosa [concava?] x floribunda, Made by Mark van Zwet, The Netherlands. van Zwet hybrid #53
Yucca filamentosa [concava?] x gloriosa f. nobilis, Made by Mark van Zwet, The Netherlands. van Zwet hybrid #54
Yucca filamentosa [concava?] x flaccida hybrid?, Made by Mark van Zwet, The Netherlands. van Zwet hybrid #55
Yucca filamentosa [concava?] x 'Filata', Made by Mark van Zwet, The Netherlands.  van Zwet hybrid #56.
Yucca gloriosa forma nobilis x recurvifolia/gloriosaVirginia form?. Made by Mark van Zwet, The Netherlands. van Zwet hybrid #50.
Yucca gloriosa forma nobilis  x  'Floribunda'. Made by Mark van Zwet, The Netherlands. van Zwet hybrid #51.
Yucca gloriosa forma nobilis  x flaccida hybrid?. Made by Mark van Zwet, The Netherlands. van Zwet hybrid #52.
 

Photos of van Zwet hybrids:
 
 

Yucca filamentosa [concava?] x floribunda, Mark van Zwet hybrid #53. May 2008	Yucca filamentosa [concava?] x floribunda, Mark van Zwet hybrid #53. July 2008	Yucca filamentosa [concava?] x gloriosa f. nobilis,  Mark van Zwet hybrid #54 July 2008	Yucca filamentosa [concava?] x gloriosa f. nobilis,  Mark van Zwet hybrid #54 July 2008

 
 
 
 

More information about hybrids.