Variety traits

Pelargonium double flowering

Pelargonium L'Hér. ex Ait.

A morphological trait determined by the number of petals in a flower, which is used in variety testing and breeding of Pelargonium.

In the reference 73 varieties crop Geranium, where this is mentioned in the description.

When evaluating double flowering in Pelargonium, a quantitative count of the petals is applied: a single flower has 5 petals, semi-double has from 5 to 10, and double has more than 10. This trait is inherited and regulated by genetic mechanisms of floral organ development, which is key when planning hybridization.

A high degree of double flowering affects the agronomic practices and ornamental value of the crop. The dense structure of double inflorescences provides poor aeration and retains moisture, which increases the risk of plants being affected by fungal diseases, such as Botrytis cinerea, especially with excessive watering or high air humidity.

General information about the subject — on the page Double flowering / Reversion.

Sources8

Varieties of Geranium 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.