California Manroot

Marah fabaceus

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Cucurbitaceae
Genus:
Marah
Species:
Marah fabaceus
USDA Symbol:
MAFA3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Vine
Height:
600 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
feb,mar,apr,may
Bloom Colors:
white, cream

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Glorious Squash Vine Borer (Melittia gloriosa)

Garden & Ecology Notes

Wildlife Value:
bees, small mammals
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Large tuberous root resprouts vigorously after fire. Common in chaparral and coastal sage scrub fire regimes.

Soil Requirements

Soil Type:
well-drained, sandy or rocky soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to chaparral and coastal scrub regions

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
14–60 days
Notes:
Seeds have hard coats requiring scarification. Cold stratification improves germination rates.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are soaked overnight with warm water or placed in dry, cold storage following collection and prior to sowing.

Establishment: Clean seed may be rapidly collected from ripening fruits of after falling to the ground from early to late spring. Seeds are collected between April 1st and June 15th. Mature pods are brown and spiny. Seed is greenish brown at maturity. Found on banks and slopes below 2,500 feet elevation near the coast; from Marin to Monterery County, California.

Source: npn.rngr.net