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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Astrantia major ‘Star of Billion’
Masterwort 'Star Of Billion'
Astrantia major ‘Star of Billion’ is a clump-forming perennial with mid-green foliage and umbels of tiny greenish-white to white flowers, framed by strap-shaped bracts tinged with green. Flowering from June to August, it grows to a medium size and suits borders or naturalistic plantings. Loved by pollinators and excellent for cutting, it provides steady summer interest. A reliable perennial for Irish cottage and wildlife gardens.
Plant Details
Flowering Months
Size
- Max Height
- 0.5 m — 1.0 m
- Max Spread
- 0.1 m — 0.5 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 Part Shade
- Aspect Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
- 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 / 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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- Patios / Courtyards
- Flower Borders
- Groundcover
- Merits
-
- No pruning required
- Low Maintenance
- Loved By Pollinators
- Good for Cut Flowers
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Mophead, lacecap, panicle, smooth, oakleaf and climbing hydrangeas differ in far more than flower shape. This guide compares their growth, flowering habit, preferred position and garden use to help you...
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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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How to Grow Climbing Hydrangeas on Walls, Fences and Trees
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Best Hydrangeas for Small Gardens
Small gardens can accommodate hydrangeas very well when mature size and habit are considered from the outset. Compare compact mophead, panicle, oakleaf and lacecap choices that give substantial summer interest...
