Guayule (Parthenium argentatum)

Common Name Latin Name Plant Family
Parthenium argentatum

A source of rubber obtained by mechanical maceration of the roots and/or stems.[61, 110, 171]. Yields of up to 240 kilos per hectare per year are possible (harvested when plants are 5 years old)[110].

  • Medicinal Use

    None known

  • Edible Use

    None known

  • Cautionary Notes

    None known

Cultivation & Habitat

Seed – we have no details for this species but suggest sowing the seed in a greenhouse in early spring. Only just cover the seed. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Requires a very well-drained soil in full sun[200]. Prefers a sandy soil but cultivated plants succeed on most soils except clay[110]. Established plants are very drought resistant[110]. This species is not very hardy in Britain, plants dislike winter temperatures falling below -10¡c and suffer damage below -15¡c[11]. In particular, they dislike fluctuating winter temperatures and excessive winter wet[110]. Plants grow well but give a poor yield of latex when growing in areas of higher rainfall[110]. (This refers to the very low levels of rain the plant experiences in its native habitat). More rubber is produced if the plant is prevented from flowering[110]. British summers are possibly not warm enough for this plant to thrive[110].
South-western N. America – Mexico to Texas.

Become ungovernable, break the chains of the matrix; grow and forage your own food and medicine.

*None of the information on this website qualifies as professional medical advice. Take only what resonates with your heart and use your own personal responsibility for what’s best for you. For more information [brackets] [000], see bibliography.