Impatiens pianmaensis (Impatiens) — Bushy, compact

Overview

Impatiens pianmaensis is a bushy, compact annual biennial in the genus Impatiens, part of the Balsaminaceae family, with fleshy, simple, toothed leaves foliage. Impatiens pianmaensis grows best in full shade, and tolerates loam soils and neutral pH. Its UK hardiness is rated H3. Suggested uses include bedding plants, containers, hanging baskets and groundcover.

About

Impatiens pianmaensis is an annual/biennial bedding species in the Balsaminaceae with a compact, well-branched habit. It bears fleshy, simple, toothed leaves and suits shaded, sheltered spots. The plant prefers neutral loam kept moist but well-drained and is rated H3 for the UK climate. Use it in containers, hanging baskets or as a ground cover on north-facing aspects.

About the genus

Impatiens is a genus of more than 1,000 species of flowering plants, widely distributed throughout the Northern Hemisphere and the tropics. Together with the genus Hydrocera, Impatiens make up the family Balsaminaceae.

Wikipedia contributors, "Impatiens", CC BY-SA 4.0 — Impatiens

In the garden

A member of the genus Impatiens in the balsam family, Impatiens pianmaensis is grown as an annual or biennial for close planting in shade. Plants form a compact, multi-stemmed mound with fleshy, toothed leaves and are best sited out of direct sun on a north-facing, sheltered aspect. Soil should be a neutral loam with consistent moisture but good drainage; avoid heavy waterlogging. Give the plants full shade and protection from drying winds to preserve the fleshy foliage. In UK terms the species is rated H3 (borderline), so it will tolerate mild outdoor conditions but benefits from sheltered microclimates or container culture where it can be moved in unsettled weather. Impatiens pianmaensis works well in dense bedding schemes, mixed containers or hanging baskets where moisture can be controlled, and as a close ground cover on shaded beds. Expect flowering through June to October when given the right conditions. Place plants where they will not receive bright afternoon sun and where wind exposure is limited, as the specified north-facing, sheltered aspect helps maintain leaf condition and flowering performance.

Growing conditions

Best soil and position for Impatiens

Sunlight: Full shade
Soil type: Loam
Soil pH: Neutral
Soil moisture: Moist but well-drained
Aspect: North-facing
Exposure: Sheltered
UK hardiness: H3

Plant details

Impatiens pianmaensis size, habit and characteristics

Plant type: Annual Biennial, Bedding
Habit: Bushy, compact
Foliage: Fleshy, simple, toothed leaves
Suggested uses: Bedding plants, containers, hanging baskets, groundcover

Care notes

Pruning and caring for Impatiens pianmaensis

Propagation: Seed sowing, stem cuttings
Pest resistance: Susceptible to downy mildew, aphids, whiteflies
Disease resistance: Downy mildew-resistant varieties available

Frequently asked questions

Where is the best place to plant Impatiens pianmaensis?

Impatiens pianmaensis prefers full shade. It suits sheltered positions.

What soil does Impatiens pianmaensis need?

Impatiens pianmaensis grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.

Is Impatiens pianmaensis hardy in the UK?

Impatiens pianmaensis has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.

How do I propagate Impatiens pianmaensis?

Seed sowing, stem cuttings.

More in the Impatiens genus

Browse all Impatiens →