Cultivation

New Guinea Impatiens in Open Ground

Impatiens New Guinea Group

Growing New Guinea impatiens in open ground requires protection from the midday sun, maintaining a stable moisture level, and planting exclusively after the threat of frost has passed.

In the reference 63 varieties crop New Guinea Impatiens, where this is mentioned in the description.

New Guinea hybrids are more light-tolerant than other impatiens species; however, excessive direct sunlight exposure makes them prone to foliage scorch and bud drop. The plants require loose and fertile soils, while it is critical to avoid both waterlogging, which causes root rot, and drying out, which leads to a rapid loss of turgor.

An important characteristic of the group is its genetic resistance to downy mildew, unlike Impatiens walleriana. The crop is extremely heat-loving and does not tolerate even mild cooling, so it is grown as an annual in regions with cold climates. Due to their sturdy stems and fleshy structure, these hybrids demonstrate high resistance to wind loads in landscape design applications.

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

Sources8

Varieties of New Guinea Impatiens 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.