Suggested plants for outdoor cultivation in low winter temperature zones.

Indehiscent-fruited species.

Yucca aloifolia*
Yucca aloifolia form serratifolia*
Yucca baccata
Yucca baccata
ssp. thornberi*
Yucca baccata ssp. vespertina
Yucca brevifolia
* (from higher regions)
Yucca carnerosana* (from higher regions)
Yucca decipiens *
Yucca elephantipes* (Mexico-from higher regions)
Yucca faxoniana*
Yucca filifera *(from higher regions)
Yucca gloriosa and cultivars robusta, variegata, medio-picta, marginata
Yucca grandiflora *
Yucca jaliscensis *
Yucca lineriafolia *
Yucca madrensis *
Yucca periculosa *
Yucca recurvifolia and cultivated forms Dolomiten and Schwarzwald, Grubenlampe and Lothringen, Rheintal, Vittorio Emanuele
Yucca schidigera* (from higher regions)
Yucca torreyi * (from higher regions)
Yucca treculiana *
Yucca schottii * (from higher regions)

25 year old example of Yucca baccata with Colchicum "Lilac Wonder" in bloom in October.

Yucca elata in winter 2000,
central Europe, 20 year old example
in the Hochstatter Garden

Yucca rostrata, snow covered
(Garden of Adalbert Schmidt)

Ilse standing beside Yucca elata
in bloom in July 2004

Dehiscent-fruited species.

Yucca arkansana
Yucca arkansana
ssp. louisianensis
Yucca arkansana
ssp. freemanii
Yucca angustissima
Yucca angustissima
ssp. kanabensis
Yucca angustissima
ssp. toftiae
Yucca angustissima
ssp. avia
Yucca baileyi
Yucca baileyi
form bella (New Mexico)
Yucca baileyi ssp. intermedia
Yucca campestris
Yucca coahuilensis *
Yucca constricta *
Yucca elata
Yucca elata
ssp. utahensis
Yucca elata ssp. verdiensis
Yucca filamentosa
Yucca filamentosa ssp. concava
Yucca filamentosa
ssp. smalliana

Yuccas under thick snow in the garden of Adalbert Schmidt

Yucca filamentosa and cultivated forms Atlanta, Aureovariegata, Eisbär, Elegantissima, Elite, Florida, Fontäne, Glockenbusch, Glockenriese, Grossglockner, Golden Sword, Herkulessäule, Ivory Tower, Milchstern, Missouri, Morgenglocke, Ohio, Rosemarie, Rosenglocke, Schellenbaum, Schneefichte, Schneetanne, St. Louis
Yucca flaccida and cultivated forms Golden Sword, Garland Gold, Bright Edge, Bayerwald, Bergkristall, Diamant, Nürnberg
Yucca glauca and forms South Dakota, Nord Dakota, Montana, Nebraska
Yucca glauca ssp. albertana
Yucca glauca
ssp. stricta
Yucca harrimaniae
Yucca harrimaniae
ssp. gilbertiana
Yucca harrimaniae
ssp. neomexicana
Yucca harrimaniae
ssp. sterilis
Yucca karlsruhensis
(Yucca x Yucca glauca)
Yucca nana
Yucca pallida
Yucca reverchoni
Yucca rigida *
Yucca rupicola *
Yucca rostrata *
Yucca thompsoniana *
Yucca whipplei *
Yucca whipplei ssp. eremica* (northern California where it is fairly well protected by oak trees).

Other forms: Yucca chilensis, Yucca cochabamba, Yucca danica, Yucca flexilis.

* = Guarding against moisture during the winter months.

Adult example of Yucca elata.
Note the inflorescence (not in bloom) app.
4 m high similar to Yucca whipplei.

Yucca linearifolia in wintertime

Climate data

USA, Great Basin Desert, Hamlyn Valley, Utah, 1,800 m altitude


July - August 32°C to 36°C
December - January -18°C to -25°C
Extreme 39°C and -29°C

Precipitation: 300 mm p. a. ; mostly in Spring and early Summer.

Central Europe, central Germany, Mannheim, sea level


July - August 28°C to 34°C
December - January -8°C to -14°C
Extreme 41.5 °C (in 2003) and -18°C

Precipitation: 650 mm p. a. ; January - December irregularly

Yucca bacata ssp. vespertina in bloom
with the golden poppy (stateflower
of Califonia) Escholtzia parishii.M
Old Yucca elata in background.

Yucca pallida in foreground in bloom.

Alpine mini-garden in half shadow.

Alpine mini-garden with the Dwarf Yucca, Yucca nana.

Introduction CD-ROM Links
Species Hardy Species