Variety traits

Petunia Plant Height

Petunia Juss.

An important morphological trait of petunias, measured from the soil surface to the highest point of the plant or its flowers. This metric is critically dependent on the habit group: from 15–25 cm in compact forms to 100 cm in trailing (ampelous) types.

In the reference 51 varieties crop Petunia, where this is mentioned in the description.

During petunia cultivar testing, plant height is measured in centimeters during the period of mass flowering. The methodology involves recording the distance from the soil surface to the apex of the main plant or the level at which the flowers are situated. Given the high variability of forms, ranging from trailing to upright, cultivars are grouped by growth type and evaluated in comparison with corresponding standards.

Height values vary from 15–25 cm for compact forms to 25–40 cm for medium and tall hybrids. For trailing forms, this metric can reach 100 cm or more, reflecting the length of the cascading shoots. This trait determines cultivation practices: tall, large-flowered groups like Grandiflora are more sensitive to lodging from wind and rain and require a specific approach to training, pinching, and substrate volume.

General information about the subject — on the page Plant height.

Sources8

Varieties of 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.