PlantPeers
Back to Catalog
No image available
Cucurbitaceae FAMILY

Marah macrocarpa

Marah macrocarpa

Edibility
0/5
Medicinal
2/5

Safety & Hazards

None known

Cultivation Details

HabitPerennial Climber
GrowthFast

Marah macrocarpa is native to the mediterranean-type climate of California, where it experiences long, hot summers and cool, moist winters. It is not a very cold-hardy plant, being able to tolerate short periods with temperatures falling to between -5 and -10°c[1]. Prefers a sunny position in a well-drained rich soil with abundant moisture[2, 3]. Succeeds in ordinary garden soil[3]. Plants are often found in dry soils in the wild[4]. The tuberous rootstock of older specimens can weigh more than 160 kilos[5]. A climbing plant, supporting itself by means of tendrils[6].

Propagation

Seed - sow early spring in pots of rich soil in a greenhouse. Germination usually takes place within 1 - 2 weeks at 20°c. Put 2 or 3 seeds in each pot and thin to the best plant. Grow on fast and plant out after the last expected frosts. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-21. <temperate.theferns.info/plant/Marah+macrocarpa>

Pollinators

Insects

References

  1. [1]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  2. [2]RHS Dictionary of Plants plus Supplement. 1956 — F. Chittendon. · Oxford University Press · 1951 · ISBN - ↩︎Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
  3. [3]Focus on Plants. Volume 5. (formerly 'Growing from seed') — Bird. R. (Editor) · Thompson and Morgan. · 1991 · ISBN - ↩︎Very readable magazine with lots of information on propagation. A good article on Corydalis spp.
  4. [4]A California Flora. — Munz P.A. & Keck D.D. · University of California Press; Los Angeles · 1959 · ISBN - ↩︎An excellent flora but no pictures. Not for the casual reader.
  5. [5]Flora of N. America — http://flora.huh.harvard.edu/fna/ ↩︎An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
  6. [6]Gardening on Walls — Grey-Wilson. C. & Matthews. V. · Collins · 1983 · ISBN 0-00-219220-0 ↩︎A nice little book about plants for growing against walls and a small section on plants that can grow in walls.
  7. [7]A Dictionary of Plants Used by Man. — Usher. G. · Constable · 1974 · ISBN 0094579202 ↩︎Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
  8. [8]Native American Ethnobotany — Moerman. D. · Timber Press. Oregon. · 1998 · ISBN 0-88192-453-9 ↩︎Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.