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Grindelia integrifolia
Grindelia integrifolia
Grindelia integrifolia
Grindelia integrifolia
Grindelia integrifolia
Grindelia integrifolia
Grindelia integrifolia
Grindelia integrifolia
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Available in 3 sizes
Available in 3 sizes
Available in 2 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 2 sizes
Available in 2 sizes
Available in 2 sizes
Available in 1 sizes
Available in 2 sizes
Available in 2 sizes
Available in 1 sizes
Available in 2 sizes
Available in 3 sizes
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Dispatch by letter from 3,90 €.
Delivery charge from 5,90 € Oversize package delivery charge from 6,90 €.
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This plant carries a 12 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
From 5,90 € for pickup delivery and 6,90 € for home delivery
Express home delivery from 8,90 €.
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Description
Grindelia integrifolia is a perennial American plant forming a robust and spectacular clump.
Its yellow flowers catch the light in a unique way. When the buds open, they are covered in an abundant and sticky nectar that forms a kind of varnish. When the flower is fully open, this "varnish" remains attached to the ligules and the thorny bracts beneath the flower, making this flowering shiny and silvery.
Similar to the previous species, but forming even larger clumps. The bluish-green leaves are larger, measuring 25 to 35cm (10 to 14in) long and 5 to 6cm (2in) wide. They are also more dentate. The flowers, measuring 6 to 7cm (2 to 3in) in diameter, have slightly wider and more spaced golden yellow petals. They also have a slightly darker centre, but still display the same brilliance.
Grindelia integrifolia in pictures
Flowering
Foliage
Plant habit
Botanical data
Grindelia
integrifolia
Asteraceae
Cultivar or hybrid
Planting and care
They are only truly hardy in a warm exposure with the driest possible soil in winter. We grow these rarely offered plants in the rich but porous, well-drained and dry soil of our scree garden, alongside galega, grasses, calamints, and various salvias.
Planting period
Intended location
Care
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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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The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:
- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
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 planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
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.