Advanced Search Map Locator
View Settings
Nurseries Carrying this Plant Add Current Plant To List Edit Current Plant
Show all Photos

About Calscape Nurseries
California Garden Planner Bay Area Garden Planner (NEW) Planting Guide
Butterflies My Plant Lists
Contact Calscape
Tap map to see plants native to location
Order by Popularity Order by Common Name Order by Scientific Name Order by # of Butterflies Hosted
Show nursery cultivars Hide nursery cultivars
Show plants not in nurseries Hide plants not in nurseries
Grid view Text view
Fremont Box Thorn
Lycium fremontii
About Fremont Box Thorn (Lycium fremontii) 0 Nurseries Carry This Plant Lycium fremontii is a species of flowering plant in the nightshade family native to northwestern Mexico and the southernmost mountains and deserts of California and Arizona in the United States. It often grows in areas with alkaline soils, such as alkali flats, and is commonly known as Frmont's desert thorn. Both its common name, and its specific epithet are derived from John C. Frmont. L. fremontii is a bushy, spreading shrub approaching a maximum height of 4 meters with many thorny, leafy branches. The fleshy leaves are oval in shape and up to 2.5 centimeters long. Parts of the plant are coated in hairy hairs. The flower cluster is a small cluster of tubular flowers roughly 1 to 2 centimeters long including the cylindrical calyx of fleshy sepals at the base. The flower is light to deep purple with purple veining. The corolla is a narrow tube opening into usually five lobes. The fruit is a red berry 6 to 8 millimeters wide.
Plant Description
Plant Type
Plant Type

13.1 ft tall

Flower Color
Flower Color

Wildlife Supported

Butterflies & moths hosted ( 3 likely * ) SHOW ALL

Landscaping Information
Full Sun

Ease of Care
Ease of Care
Moderately Easy

Sunset Zones
Sunset Zones?
8, 9, 10, 11, 12*, 13*, 14*, 15, 16, 18, 19*, 20*, 21*, 22*, 23*, 24*

Natural Setting
Site Type
Site Type
Alkaline soils

Annual Precipitation: 2.6" - 23.3", Summer Precipitation: 0.18" - 2.93", Coldest Month: 44.6" - 62.0", Hottest Month: 65.3" - 88.8", Humidity: 1.40" - 40.87", Elevation: -193" - 3549"

Alternative Names
Common Names: Fremont Wolfberry, Fremont's Desert Thorn, Fremont's Desert-thorn

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

Sign in to your Calscape Account X

Once signed in, you'll be able to access any previously saved plant lists or create new ones.

Email Address

Sign In