- Perennials
- How much sun : Sun
- Eventual size : Large
- Flower colour : Purple
- Flowering month : June
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Special conditions
Ready made borders
Planting combinations
Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Bulb planting time
Depth of water
Sowing month outside
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Plant Seasons
RHS Autumn catalogue 2021
Hardy
Leaf colour
Ground cover
Position
Soil moisture
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