Yucca are plants of the new world. Taxonomically the genus is grouped with other lily relatives that in the past were placed in family Liliaceae, then Amaryllidaceae and later in the Agavaceae, which currently also includes Agave, Beschorneria, Furcraea, Hesperaloe, Hesperoyucca and Polianthes. Related plants such Sanseveria, Dracaea and Cordyline, once inclued in Agavaceae, are now in their own family the Dracaenaceae as are Phormium (Phormiaceae) and Doryanthes (Doryanthaceae). Nolina (including Beaucarnea), Calibanus, Dasylirion and Nolina are now put in the Noliniaceae. We have information on many of these plants on our Agave Relatives Page and Agave Page.

The name Yucca, attributed to Linnaeas is derived from a Carib Indian name for the unrelated cassava (Manihot esculenta) in the spurge family (Euphorbiaceae). Yucca species are varied in growth habit from trunkless plants growing at ground level to large tree-like plants. The flowers are mostly panicles of large white flowers that are commonly fragrant at night and pollinated by moths. There are 40 or more species in the genus with a distribution range from the Canadian prairies through much of the US south through Mexico, Guatamala and the Caribbean. The center of this distribution with the high concentration of species is central Mexico.

Yucca currently being grown at San Marcos Growers

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Hesperoyucca whipplei [Yucca] Our Lord's Candle - Succulent with rosettes to 2' tall by 4' wide with narrow gray leaves. Full sun. Drought tolerant. Hardy to 10 degrees F. [Hesperoyucca whipplei]  Hesperoyucca whipplei 'RBG' [Yucca] Our Lord's Candle - Succulent w/rosettes to 4' tall by 5' wide w/narrow silver-gray leaves. Full sun. Drought tolerant. Hardy to 10 degrees F. [Hesperoyucca whipplei]  Yucca aloifolia 'Marginata' Golden Spanish Dagger - Succulent to 10' tall w/pink tinged cream margined rigid lvs. White flwrs. Full sun/light shade. Drought tolerant. Well drained soil. Hardy to 10 F.  Yucca brevifolia 'Wikieup Form' Arizona Joshua Tree - Tree-like plant to 35' but much smaller in cultivation w/sharp blue-green leave and cream flowers. Full Sun. Little H20. Hardy <0F.  Yucca Bright Star ['Walbristar'] PP17,653 Bright Star Yucca - Succulent w/18" tall by 3' wide rosettes of brighly yellow margined leaves. Plant in full sun. Occasional to regular irrigation. Hardy to 0F.  Yucca elata Soap Plant - Tree-like succulent 6-20' tall w/rigid lvs and white flowers in spring-summer. Full sun. Drought tolerant. Hardy to below 0 degrees F.  Yucca elephantipes Giant Yucca - Large succulent tree to 15-25' tall w/ large base and white flowers in spring-summer. Hardy to <15 degrees F. Yucca gloriosa, Hort.  Yucca elephantipes 'Marginata' Variegated Giant Yucca - Large succulent to 15-25' w/ variegated lvs & white flwrs spring-summer. Full sun. Drought tolerant. Hardy to <15 degrees F. Yucca gloriosa, Hort.  Yucca elephantipes 'Variegata' Variegated Giant Yucca - Large succulent to 15-25' w/strongly variegated lvs & white flwrs spring-summer. Full sun. Drought tolerant. Hardy to <15 degrees F.  Yucca endlichiana Patilla Yucca - Succulent to 1 foot tall with upright gray leaves from tuberous caudex. Red flowers near base in spring. Full sun. Low water needs. Hardy to <15F  Yucca glauca Small Soapweed - Evergreen succulent 2-3' tall & wide w/ pale green upright lvs & green-cream flwrs in summer. Full sun. Drought tolerant. Hardy to <15 degrees F.  Yucca gloriosa var. recurvifolia Curveleaf Yucca - Evergreen succulent 6 to 10' tall w/penulous tip gray-green lvs & spring-summer large white flwrs. Full sun. Drought tolerant. Hardy to 20-25F.  Yucca gloriosa 'Variegata' Variegated Mound Lily - Evergreen succulent 6-8' tall w/green narrow cream margined lvs blushing pink in winter. Full sun. Drought tolerant. Hardy to 0 degrees F.  Yucca linearifolia Linear-leaf Yucca - Single trunked plant to 4+' tall w/narrow gray-green leaves. Plant in full sun in well drained soil. Little/no H2O required. Hardy to at least 25 F.  Yucca pallida Pale-leaf Yucca - Rosette forming succulent to 20" tall by 30" wide with pale blue-green lvs & white flwrs in spring. Well drained soil. Drought tolerant. Hardy <-10 F.  Yucca 'Pomona Cream Margin' Large succulent to 15-25' w/cream margined green lvs & white flwrs spring-summer. Full sun. Drought tolerant. Hardy to 25 degrees F.  Yucca queretaroensis Queretaro Yucca - Single stemmed plant to 12' tall w/very narrow bright green lvs. Full sun. Good drainage. Little Irrigation required. Hardy to 15F (perhaps less).  Yucca recurvifolia 'Gold Ribbons' Evergreen succulent. Branched stems to 4-6' have yellow and green leaves w/white flowers in summer. Full sun. Drought tolerant. 20-25 degrees F.  Yucca rigida Blue Yucca - Succulent to12' tall w/upright rigid gray lvs & white flwrs on 2' spikes in spring. Full sun. Drought tolerant. Hardy to 0 degrees F.  Yucca rostrata Big Bend Yucca - Slow growing succulent usually w/unbranched stems 12-15' tall & flexible gray leaves. White flwrs in spring. Full sun. Drought tolerant. Hardy to 0 F.  Yucca rostrata 'Blue Velvet' Big Bend Yucca - Slow growing succulent w/stems 6-12' tall of 4' wide rosettes of flexible blue-gray lvs. White flwrs in spring. Full sun. Drought tolerant. To 0 F.  Yucca rostrata 'Sapphire Skies' Big Bend Yucca - Slow growing succulent usually w/unbranched stems 12-15' tall & flexible blue gray lvs. White flwrs in spring. Full sun. Drought tolerant. To 0 F.  Yucca 'Silver Anniversary' PP31,437 Yucca 'Silver Anniversary - Clumping 2-3' tall by 4' wide w/rosettes of silver-blue lvs. Cream spring flwrs on red stalks. Full sun. Well drained soil. Little H2O. Hardy to 0F.

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