Cultivation

Open-field cultivation of Petunia × hybrida

Petunia x atkinsiana D. Don

Growing petunias in open fields is limited to the growing season from the onset of warm weather until the first frosts and requires the adaptation of cultivation techniques to the specific variety type.

In the reference 9 varieties crop Garden petunia, where this is mentioned in the description.

Under open-field conditions, Petunia × hybrida requires strict adherence to planting schedules after the threat of late spring frosts has passed. Plant morphology varies in open ground: trailing (ampelous) forms can reach one meter in diameter, acting as groundcover plants.

Large-flowered varieties of the Grandiflora group are highly sensitive to wind and rain damage due to the physical characteristics of the flowers, which necessitates the selection of sheltered sites. Maintenance in open ground includes intensive irrigation during high temperatures, regular fertilization to ensure continuous blooming, and constant plant shaping through deadheading and pinching.

General information about the subject — on the page Open field.

Sources8

Varieties of Garden petunia mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.