Growing Hydrangeas in Pots: Choosing Varieties, Planting and Care
Hydrangeas grow well in pots when the variety, container and compost are chosen with their eventual size and moisture needs in mind. Learn how to plant, water, feed and protect...
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Persicaria amplexicaulis ‘Blackfield’
Red Bistort 'Blackfield'
Bistorta amplexicaulis ‘Blackfield’ (PBR) produces tall, slender spikes of deep blood-red flowers that emerge from near-black buds through summer and autumn. Its clump-forming habit and heart-shaped leaves create a bold backdrop for borders. Recognised with the RHS Award of Garden Merit and loved by pollinators, this medium perennial thrives in moist soil, making it a strong choice for Irish wildlife-friendly gardens.
Plant Details
Flowering Months
Size
- Max Height
- 0.5 m — 1.0 m
- Max Spread
- 0.5 m — 1.0 m
- Growth Habit
- Grows in tight bunches from base, forming rounded groups.
Planting Position
- Sunlight 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
- Aspect 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 Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
- Exposed / Sheltered
- Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
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(< −20 °C) Extremely hardy
Ideal Soil Conditions
- Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
- Soil Moisture 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 Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Plant Uses & Merits
- Uses
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- Flower Borders
- Merits
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- Generally disease-free
- Generally pest-free
- No pruning required
- RHS | Award Of Garden Merit
- Loved By Pollinators
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How to Grow Hydrangeas in Ireland: The Complete Guide
Hydrangeas are well suited to many Irish gardens, provided the type is matched to the position. This guide covers choosing Hydrangeas, light and soil, planting, watering, feeding, pruning, flower colour,...
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Best Hydrangeas for Small Gardens
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