Bidens cernua 0
Author: Carl von Linné (1707-1778)Family: Asteraceae Subfamily: Asteroideae Tribe: Coreopsideae
Genus: Bidens
English name: Nodding beggartick
Zone: California
Bidens cernua Observed in United States of America by Christopher David Benda (license)
References for the genus
General specifications
Annual or Biennial plant
Biological type: plant
Frost resistance: 19ºF
Leaf color: dark green
Flower color: yellow
Reproduction mode: hermaphrodite plant whoes flowers produce both male and female gametes
IUCN Red List of threatened species status: Least Concern
Specifications for the Mediterranean basin
Adult size (h x w): 2,9ft x 0,9ft
Sun exposure: full sun (Sun hours: >6h Foliage: deciduous
Growth: fast
Flowering time from June until September
Ripe fruits in September
Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 3x a week pH 6.5
Logical sequence of containers for: Perennials; forestry plate 8cm, 1L container, 2L forestry pot, 6L container, 55L container
Propagation is done by root division
Frost resistance: 19ºF
Leaf color: dark green
Flower color: yellow
Reproduction mode: hermaphrodite plant whoes flowers produce both male and female gametes
IUCN Red List of threatened species status: Least Concern
Specifications for the Mediterranean basin
Adult size (h x w): 2,9ft x 0,9ft
Sun exposure: full sun (Sun hours: >6h Foliage: deciduous
Growth: fast
Flowering time from June until September
Ripe fruits in September
Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 3x a week pH 6.5
Logical sequence of containers for: Perennials; forestry plate 8cm, 1L container, 2L forestry pot, 6L container, 55L container
Propagation is done by root division
Sowing instructions
SPRING Sow the seeds at 3mm depth in the Well Drained Seed Sowing Mix between 64-72°F. During germination keep the substrate moist and in daylight. The seeds germinate in 2-3 weeks.
The average seed weight is 300,3 per gram (0,00333g).
Germination references
- Seeds: Ecology, Biogeography, and, Evolution of Dormancy and Germination, Baskin, Carol & Baskin, J.M. 2014 pag. 1-1586. DOI
- USDA Propagation Protocols. npn.rngr.net Vol. asteraceae-bidens-2501. Bidens cernua
The average seed weight is 300,3 per gram (0,00333g).
Germination references
- Seeds: Ecology, Biogeography, and, Evolution of Dormancy and Germination, Baskin, Carol & Baskin, J.M. 2014 pag. 1-1586. DOI
- USDA Propagation Protocols. npn.rngr.net Vol. asteraceae-bidens-2501. Bidens cernua
Experiences in the garden
29-01-20A Obtaining seeds from seed provider Jardin Botanique d'Angers collected in '....'. Stock (Cultivated from unknown origin)
17-04-20 Sown 20 seeds in a tray and germinated at 27-05-20, result: 1 units in Serre3.
Protocol: Spring 3mm Sowing mix+Sand 64-72°F Damp substrate+Light 2-3w
. . . 2020B Collection of seeds in the garden collected at 28-09-20. Stock Index Seminum
. . . 2020A Production of 1 plants in our nursery (Cultivated from unknown origin)
29-09-20 1x Yearly plant: Serre2 C1.