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Olearia scilloniensis - Daisy Bush

Olearia x scilloniensis
Daisy Bush, Scilly Bush

5,0/5
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Beautiful-sized plant, received promptly.

Mireille, 27/04/2023

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This plant carries a 24 months recovery warranty

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Value-for-money
This hybrid olearia is an excellent evergreen bush for coastal areas in mild climates. Its beautiful dense foliage, with a greyish-green color, is adorned in spring with a multitude of small white flowers with a yellow center that resemble asters. Hardy down to -8°C (17.6°F), it tolerates drought and poor, dry soil, but requires a light, slightly acidic soil and a sunny exposure.
Flower size
2 cm
Height at maturity
1.50 m
Spread at maturity
1.50 m
Exposure
Sun
Hardiness
Hardy down to -6°C
Soil moisture
Moist soil
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Best planting time March to April, September
Recommended planting time March to May, September to October
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Flowering time May to June
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Description

The Olearia (x) scilloniensis is a lovely evergreen bush that thrives in mild maritime climates. When it blooms in May-June, it is covered in a multitude of small white flowers with yellow hearts, similar to asters. The abundance of flowers transforms it into a beautiful white ball with a dusting of yellow, as if weighed down by snow. Its dense and attractive grayish-green foliage persists all year round. It is quite drought resistant, highly floriferous, and one of the most beautiful bushes for creating a permanent decoration in mild climates.

 

The Olearia scillionensis (sometimes spelled scillonensis) was born in 1910 on Tresco, in the Isles of Scilly, located off the southwest coast of the Cornish Peninsula in the British Isles. It is the result of cross-breeding between Olearia lirata, native to southeastern Australia, and O. phlogopappa, native to Tasmania and the southeastern coast of Australia. This bush, very dense and with a flexible, rounded habit, will reach about 1.50m (5ft) spread, with a relatively fast growth rate. It belongs to the family of Asteraceae. Its angular and downy branches bear narrow, entire, undulate-edged leaves, measuring 6 to 10cm (2 to 4in) long, dark green on top and almost white underneath. The remarkably abundant flowering takes place in May-June, in the form of corymbs composed of numerous small 2cm (1in)-wide heads, similar to small white daisies with yellow centers. The flowering is followed by the formation of a fruit called an "akene," seed dispersal is ensured by the wind.

 

Hardy down to about -8/-10°C (17.6/14°F), the Olearia scillionensis will naturally find its place in a seaside garden, where it will form, together with spring-flowering bushes such as quince, ornamental apple trees, and Fabiana imbricata, a tenderly blooming grove in spring, protected by a screen of Griselinia australis and Olearia traversii. In a low hedge, it can be used alone or combined with other small evergreen bushes such as Leptospermum (Nanum Tui, Martinii, Silver Sheen), Atriplex halimus, Anthyllis barba-jovis, Hippophae rhamnoides, Elaeagnus angustifolia 'Caspica', or even Artemisia arborescens. It is perfectly adapted to gardens on the oceanic facade, where it appreciates sandy or humus-rich soils but tolerates Mediterranean summers quite well if it receives occasional but copious watering and a light soil without excessive limestone content.

Olearia scilloniensis - Daisy Bush in pictures

Olearia  scilloniensis - Daisy Bush (Flowering) Flowering
Olearia  scilloniensis - Daisy Bush (Foliage) Foliage

Plant habit

Height at maturity 1.50 m
Spread at maturity 1.50 m
Habit Irregular, bushy
Growth rate normal

Flowering

Flower colour white
Flowering time May to June
Inflorescence Flower head
Flower size 2 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour green

Botanical data

Genus

Olearia

Species

x scilloniensis

Family

Asteraceae

Other common names

Daisy Bush, Scilly Bush

Origin

Western Europe

Product reference833961

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Planting and care

The Olearia scillonensis will thrive in a light, well-drained soil, but it should remain slightly moist, especially in summer, even though it tolerates drought quite well. A loose, deep, whether rich in humus or poor, slightly rocky or sandy, slightly acidic, neutral, or even slightly alkaline soil. It tolerates sea spray very well. Plant it after the last frosts in colder regions, and in September-October in warmer climates. It requires a very sunny exposure to flourish. Under these conditions, it is hardy down to -8 or -10°C (17.6 or 14°F) and can live for many years. However, in regions further from the sea, it will be necessary to cultivate it in a large pot and store it indoors during winter, in a bright but unheated room. To shape it, you can lightly prune the stems in March-April to encourage branching.

Pot Culture:

Provide good drainage at the bottom of the pot, which should be of large volume as the plant offers a large surface area for wind resistance. Use a light substrate, enriched with coarse sand and leaf compost, and apply a slow-release fertilizer in late winter and autumn. Water generously in summer, allowing the soil to dry out slightly between waterings.

Diseases and Pests:

Scale insects sometimes attack Olearia x scillionensis. Regularly inspect the stems and undersides of the leaves to detect this pest, which forms shields or powdery masses. Apply an anti-scale treatment. In case of severe infestation, prune the plant severely just above the last bud located near the base of the stem.

 

Propagation: by stem cuttings after flowering, in summer.

Planting period

Best planting time March to April, September
Recommended planting time March to May, September to October

Intended location

Suitable for Meadow
Type of use Border, Container, Hedge, Greenhouse
Hardiness Hardy down to -6°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Sun
Soil pH Neutral
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, drained, light.

Care

Pruning instructions To shape your bush or keep it at a reasonable size, prune lightly after flowering.
Pruning Pruning recommended once a year
Pruning time March to April
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
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