Cultivation

Pot culture — Regal pelargonium

Pelargonium grandiflorum (Andrews) Willd.

The cultivation technology of Pelargonium grandiflorum requires a mandatory vernalization period at low temperatures for flower bud initiation. The crop is sensitive to substrate waterlogging and requires strict adherence to temperature and light regimes.

In the reference 26 varieties crop Regal pelargonium, where this is mentioned in the description.

For successful flowering of Regal pelargonium, a cold dormant period of 6–8 weeks at temperatures from +5°C to +10°C is necessary. The plant is day-neutral; however, supplemental assimilation lighting during the winter period significantly accelerates the development process.

When growing, it is preferable to use a light, well-drained substrate with a pH of 5.6–6.2 in small pots to reduce the risk of root rot. The crop has moderate nutritional requirements, needing balanced fertilizers, and does not require mandatory pinching due to its tendency to branch naturally.

General information about the subject — on the page Pot culture.

Sources8

Varieties of Regal pelargonium 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.