Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Willowy Monardella (Monardella viminea) is an extremely rare native perennial herb in the Lamiaceae (Mint) family that grows exclusively in San Diego County. Most of the world's willowy mint grows on the eastern side of the Miramar marine base or in nearby canyons. Its habitat consists of ephemeral streams: the bed, the edge, or the bench within a few feet of the bed. This species was formerly classified as a subspecies of Monardella linoides, and some sources still list it that way.

Despite its rarity and protected status, this plant is easy to grow in gardens and is often available from nurseries. It has a delightful mint fragrance. The pink to lavender flowers are attractive and does well in containers. Monthly irrigation keeps it evergreen and enables it to rebloom at any time of the year.

Plant type

Perennial herb

Size

10 - 19 in Tall
2 - 4 ft Wide

Dormancy

Summer Semi-deciduous

Fragrance

Pleasant

Calscape icon
Color

Pink, Lavender

Flowering season

Summer

Special uses

Containers

Sun

Full Sun, Partial Shade

Water

Low

Summer irrigation

Max 2x / month once established

Ease of care

Easy

Cold tolerance

Tolerates cold to 25° F

Soil drainage

Fast

Soil description

This plant naturally grows in coarse rocky sand or sandy clay, but it adapts to a wide range of soil conditions.
Soil PH: 6.5 - 7.8

Maintenance

Can be deadheaded if desired to encourage more flowering

Propagation

For propagating by seed: No treatment.

Site type

In the wild, this plant is found in full sun in or within a few feet of creek beds in coastal sage scrub or chaparral habitats. Seedlings are more likely to start in the stream bed than at the edge or on the bench, but here they are also more likely to be eroded away. Their proximity to streams suggests that they need supplemental water to survive the summer and fall.

Plant communities

Chaparral, Coastal Sage Scrub

Willowy mint commonly grows side-by-side with California buckwheat (Eriogonum fasciculatum), California fuchsia (Epilobium canum), broom baccharis (Baccharis sarothroides), narrowleaf milkweed (Aslepias fascicularis), and poison oak (Toxicodendron diversilobum). Nearby chaparral shrubs include toyon (Heteromeles arbutifolia), mountain mahogany (Cercocarpus minutiflorus), hollyleaf cherry (Prunus ilicifolia), scrub oak (Quercus spp.), and California sagebrush (Artemisia californica).

Hummingbirds
Bats
Birds
Bees
Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 4 likely

Confirmed Likely

Anstenoptilia marmarodactyla

Orange Tortrix Moth

Argyrotaenia franciscana

California Pyrausta Moth

Pyrausta californicalis

Shasta Pyrausta

Pyrausta perrubralis