Petromarula pinnata 7513
Author: (Carl von Linné (1707-1778)) Alphonse Pyrame de Candolle (1806-1893)Family: Campanulaceae Subfamily: Campanuloideae
Genus: Petromarula
English name: Cretan rock lettuce
Zone: Mediterranean
Petromarula pinnata Observed in Greece by johnlyden (license)
General specifications
Biological type: plant
Frost resistance: 19ºF
Leaf color: dark green
Flower color: bleu
Specifications for the Mediterranean basin
Adult size (h x w): 2,2ft x 1,9ft
Sun exposure: part sun (Sun hours: >3h <6h Foliage: semi-evergreen
Growth: slow
Flowering time from April until June
Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 1x 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: bleu
Specifications for the Mediterranean basin
Adult size (h x w): 2,2ft x 1,9ft
Sun exposure: part sun (Sun hours: >3h <6h Foliage: semi-evergreen
Growth: slow
Flowering time from April until June
Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 1x 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
AUTUMN Sow the seeds on the surface of Well Drained Seed Sowing Mix between 59-68°F. During germination keep the substrate moist and in daylight.
The average seed weight is 50000,0 per gram (0,00002g).
Germination references
- Campanulaceae: A family with small seeds that require light for germination, Koutsovoulou, Katerina and Daws, Matthew and Thanos, Costas. Annals of botany 2014 Vol. 113 pag. 135-143. DOI
The average seed weight is 50000,0 per gram (0,00002g).
Germination references
- Campanulaceae: A family with small seeds that require light for germination, Koutsovoulou, Katerina and Daws, Matthew and Thanos, Costas. Annals of botany 2014 Vol. 113 pag. 135-143. DOI
Experiences in the garden
22-02-18A Obtaining 3 plants from nursery Filippi
26-02-20 3x Dead plant because of watering problem: Petit26 C1.
11-03-20B Obtaining seeds from seed provider Libertos. Stock
20-04-20 Sown 30 seeds in a tray and germinated at 14-05-20.
Protocol: Spring 2mm Sowing mix+Sand 64-72°F Damp substrate+Light
18-04-24 Sown 20 seeds in a seed plate ½, they did not geminate in Serre5.
Protocol: Spring 2mm Sowing mix+Sand 64-72°F Damp substrate+Light
16-10-24 Sown 20 seeds in a seed plate ½, they did not geminate in Serre5.
Protocol: Autumn Surface Sowing mix+Sand 59-68°F Damp substrate+Light
. . . 2020B Production of 7 plants in our nursery
31-07-24 7x Dead plant: No information: Serre8 F2.
24-09-24C Obtaining seeds from seed provider SeedHunt. Stock
05-11-24 Sown 20 seeds in a seed plate ½, they did not geminate in Serre9.
Protocol: Autumn Surface Sowing mix+Sand 59-68°F Damp substrate+Light