Hydrangea macrophylla Renate Steiniger
Hydrangea macrophylla Renate Steiniger
Hydrangea macrophylla Renate Steiniger
Hydrangea macrophylla Renate Steiniger
Hydrangea macrophylla Renate Steiniger
Bigleaf Hydrangea, French Hydrangea
In good condition despite a repackaged parcel (specific research area took in water)
Isabelle, 16/10/2024
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Description
The Hydrangea macrophylla 'Renate Steiniger' is the most beautiful blue hydrangea. This rather old, floriferous, hardy and vigorous variety has proven itself in the garden as in flower pots. This rather broad bush forms large flower heads in the shape of tight balls, of an intense and sustained blue in acidic soil, more pink in the presence of limestone. They repeat flower throughout the summer and are nicely tinged with green and purple at maturity. The foliage also takes on pretty hues in autumn. This variety is a safe bet, easy to grow and equipped with solid stems that give it good stability in the garden.
The Hydrangea macrophylla 'Renate Steiniger', obtained in Germany in 1964, is one of the many hybrids resulting from cross-breeding hardy species belonging to the hydrangea family, native to China and Japan. This bush shows a rounded habit, as wide as it is high, about 1.40 m (4 ft 7 in) in all directions at maturity. From July to September, its small sterile flowers form round flower heads in summer, which can reach 17 cm (6.7 in) in diameter. They are deep and intense blue with a small white centre, becoming purplish washed with green, and spotted with soft blue at the end of flowering. In neutral soil, the flowers display a purple tone mixed with blue. They are carried by robust stems aged one year or more. The flowering is accompanied by a small bright green foliage, resistant, taking on carmine purple hues in autumn before falling. The leaves are opposite; they reach about ten centimetres in length. They are single, ovate to elliptical, ending in a pointed tip, strongly serrated. Hydrangeas can live at least 50 years.
The 'Renate Steiniger' Hydrangea is one of the best blue varieties, with a very intense and pure colour in acidic soil or aluminium. It has excellent hardiness and excellent flowering. Hydrangeas are well known for brightening up the north side of houses. This variety will be happy in an east or west exposure that is not scorching in borders and hedges. This variety is suitable for growing in the ground or containers, which can be placed on the terrace or near the entrance of a property. Even if these plants are not fond of limestone, they are not strictly ericaceous plants. Pair them with magellanica fuchsias, annual impatiens, or plant spring-flowering bulbs in front of their round silhouette. Enjoy their sumptuous flowering and long-lasting flowers in the garden or the house.
Please note that the colour of the flowers of macrophylla hydrangeas varies depending on the soil's pH level. Blue varieties usually turn pink in neutral or alkaline soil. To maintain a vibrant blue colour, mix ericaceous compost with your garden soil and add it every year in the spring along with aluminium sulphate or alum stone. These substances can be found in slate.
Hydrangea macrophylla Renate Steiniger in pictures
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
macrophylla
Renate Steiniger
Hydrangeaceae
Bigleaf Hydrangea, French Hydrangea
Cultivar or hybrid
Planting and care
To plant the hydrangea macrophylla 'Renate Steiniger', choose a slightly shaded spot in spring or early autumn, such as against an east- or north facing wall. Keep it away from cold winds and the sun. It prefers deep, fresh, well-drained, and relatively fertile soil, but ericaceous soil is unnecessary. You can enrich the soil with a good base fertiliser before planting. If the soil is dry at the foot of the wall, plant the root ball at least 30-40 cm (11.8-15.7 in) away from the base and add well-rotted compost to improve soil freshness. This plant is resilient and can be planted in cold areas. When pruning, remove the faded flowers on the first or second bud. To encourage the formation of young shoots, cut back a quarter or a third of the oldest stems to the base when the plant matures. Prune every year in March or April.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.