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Nolina interrata (Dehesa Bear Grass) - a caudex forming grass-like plant with narrow gray leaves. It does not flower every year and reproduces primarily asexually from underground stems. However, fires and other disturbances is known to induce profuse blooming and timed controlled burns may be necessary to maintain population vigor. A total of about 9,000 Nolina interrata plants are known. Occurrences that are entirely female require pollen from disjunct male plants to fertilize the flowers and produce viable seeds. Nolina interrata is cultivated at the Huntingdon Desert Garden, where it flowers annually.
Nolina interrata occurs in localized populations from the interior foothills of San Diego County to northwestern Baja California, Mexico. Most populations are situated in relatively rugged terrain dominated by chaparral, which is often associated with nutrient-poor soils, cool wet winters and hot dry summers. Our plants were from test germination of stored seed conducted by Rancho Santa Ana Botanic Garden staff.
The information displayed on this page about Nolina interrata is based on our research conducted about this plant from books in our nursery library as well as from information that is provided by reliable online resources. We also have included our own observations made about it as it grew in the nursery gardens and other gardens visited, as well how the crops of this plant performed in the containers when we had them in our nursery field. We also include comments received from others and welcome hearing from anyone who has information about this plant, particularly if it includes cultural information aiding others to better grow it.
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