- Perennials
- Soil type : Heavy clay
- Flower colour : Purple
- Leaf colour : Green
- Ground cover : Yes
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Special conditions
Ready made borders
Planting combinations
Flowering month
Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Eventual size
Sowing month inside or protected
Sowing month outside
Plant Seasons
RHS Spring catalogue 2021
Hardy
Position
Soil moisture
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