Virginia mallow, Virginia fanpetals (Sida hermaphrodita (L.) Rusby) comes from North America. Since the fifties of 20th cenury this species was tested in Poland as a cattle forage. In the nineties of the twentieth century, when the experimental plot of AR Lublin (Agricultural University in Lublin) in Falenty was terminated, Dr. Eng. Piotr Mańko obtained seeds, which he sowed at the Agricultural Farm Ostrowąs. Today aur Agricultural Farm has many year's experience in cultivation and large resources of Virginia fanpetals seed material.

Virginia fanpetals is perennial, wich can be grown for 20-30 years. Yield consists of shoots died in Autumn, with 5-40 mm in thickness and up to 500 cm long. Crops volume depends on the soil quality and fertilization. Yields may reach up to 40 tons of a dry weight per 1 ha. The energy value is ~ 15 MJ / kg.

Soil for Pensylvanian malva cultivation should be properly selected and prepared, i.e. it should meet the following conditions:

  • soil Class: All except VI and weak V classes,
  • pH: optimum – neutral, slightly acidic acceptable,
  • richness: P, K, Mg – at least medium, optimum – high,
  • field free of weeds.

Sida hermaphrodita advantages:

malwa pensylwańska
  • high potential yield of a dry matter crop,
  • low moisture of harvested biomass - 15-30%,
  • harvesting during the heating season – from late autumn to spring,
  • low absorption of fertilizer constituent in crops,
  • low ash content ca. 2%,
  • the possibility of using conventional agricultural machinery for sowing, cultivation, and harvesting of biomass,
  • the possibility of growing on vulnerable soils (even the V-class),
  • the possibility of fertilizing with sewage sludge and other organic composts.

Sida hermaphrodita disadvantages:

  • sensitivity of weeds in the first year of cultivation,
  • no yield in first and second year of cultivation.