Overview
Impatiens phengklaii is a bushy, compact annual biennial in the genus Impatiens, part of the Balsaminaceae family, with fleshy, simple, toothed leaves foliage. Impatiens phengklaii 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 phengklaii is a bushy, compact cultivar of the Impatiens genus, known for its fleshy stems and simple, toothed leaves. This plant thrives in full shade, particularly in north-facing, sheltered locations with moist but well-drained loam soil of neutral pH. Suitable for bedding, containers, hanging baskets, or as groundcover, it flourishes in moist, humus-rich soil during summer and autumn. Hardy to UK zone H3, it can be propagated by seed sowing or stem cuttings.
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 phengklaii 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 phengklaii
- 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 phengklaii?
Impatiens phengklaii prefers full shade. It suits sheltered positions.
What soil does Impatiens phengklaii need?
Impatiens phengklaii grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Impatiens phengklaii hardy in the UK?
Impatiens phengklaii 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 phengklaii?
Seed sowing, stem cuttings.
More in the Impatiens genus
- Impatiens 'Samba'

- Impatiens Antigua ('Kitigua')

- Impatiens Jose ('Kijos')

- Impatiens 'Balfusimglo'
- Impatiens 'Blues' (NG)
- Impatiens 'Celebrette Scarlet' (Celebrette Series) (NG)
- Impatiens 'Duepetorstar' (NG)
- Impatiens 'Fidimpmaxwhi' (NG)