Perennial

Chelone obliqua

Twisted Shell Flower
Hardiness H5

Twisted Shell Flower is a clump-forming perennial with upright stems and sharply veined foliage. In late summer, spikes of dusky pink to purple flowers rise above the leaves, giving height and colour. Medium in size and long-flowering, it thrives in moist soil and suits borders or bog gardens. So if you’ve wondered what will add late-season colour in damp Irish ground, this perennial is a strong candidate.
SKU: CHE-2L-TU7Q8H
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Flowering Months
Jan J
Feb F
Mar M
Apr A
May M
Jun J
Jul J
Aug A
Sep S
Oct O
Nov N
Dec D
Size
Max Height
0.5 m — 1.0 m
Max Spread
0.1 m — 0.5 m
Growth Habit
Densely branched plant with compact, leafy, rounded overall shape.
Planting Position
Sunlight i Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Full Sun Part Shade
Aspect i Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
North South East West
Exposure i Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Sheltered
Hardiness i Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
(−15 to −10 °C) Cold-hardy
Ideal Soil Conditions
Soil Type i Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Clay Loam
Soil Moisture i Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Moist but permeable / Poorly-drained / Free draining
Soil pH i Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid Alkaline Neutral
Plant Uses & Merits
Uses
  • Flower Borders
Merits
  • Generally disease-free

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