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Strawberry Ostara (everbearing) - Fragaria ananassa

Fragaria ananassa Ostara
Garden Strawberry, Pineapple Strawberry

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This plant carries a 6 months recovery warranty

More information

The 'Ostara' strawberry is a perpetual variety that produces from June until the first frost in October. It produces medium-sized strawberries, between 8 and 10g, with a conical shape, bright red color, tangy, melting, and juicy flesh, and a good flavour. The young plants are vigorous, highly productive, and resistant to diseases. They prefer slightly alkaline soils, unlike most strawberry varieties.
Flavour
Sugary
Height at maturity
25 cm
Spread at maturity
30 cm
Exposure
Sun, Partial shade
Self-fertilising
Best planting time September
Recommended planting time February to May, August to November
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Harvest time June to October
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Description

The 'Ostara' strawberry produces medium-sized, conical fruits with tender and juicy flesh and excellent taste quality. It is a highly productive, perpetual variety, meaning it produces strawberries multiple times from June until the first frost in October. The plants resist common strawberry diseases and also have the unique characteristic of preferring slightly alkaline soil, unlike most strawberries that prefer acidic soil.

Strawberries can be consumed in multiple ways: they can be eaten fresh, with sugar, cream, or sliced thinly and dried to be added to muesli or yogurt. If you have a bountiful harvest, you can also make jams, sauces, pies, ice cream, or sorbets. Strawberries can also be frozen.

There are three categories of strawberry varieties:

- Woodland strawberries or perpetual strawberries, producing small fruits from June to October

- Non-perpetual large-fruited varieties, flowering once a year in spring and producing very large fruits around June

- Perpetual large-fruited varieties, flowering twice a year or continuously, producing large fruits from June to October

In fact, the wild strawberry or woodland strawberry, present during Roman times and the medieval period, was crossed in the 18th century with a species brought from Chile, resulting in different large-fruited varieties through successive selections.

The strawberry is a hardy perennial belonging to the Rosaceae family. This variety has a sturdy habit, with persistent, ovate, and dentate trifoliate leaves. It produces small white flowers with a golden center that transform into large red fruits. Botanically speaking, strawberries are considered pseudocarps, with the achenes (seeds) appearing on the surface of the skin.

For harvesting, pick the fruits as they ripen, every 2 or 3 days ideally in the morning. Strawberries are delicate, so pick them with their calyx by pinching the stem 1 to 2cm above it. The texture of the fruit is a good indicator of ripeness. It should be firm and slightly soft when pressed. Strawberries are rich in vitamins and minerals. They can cause urticating effects in some individuals as they stimulate histamine release in the body.

Plant habit

Height at maturity 25 cm
Spread at maturity 30 cm
Growth rate normal

Fruit

Fruit colour red
Flavour Sugary
Use Table, Jam, Compote, Patisserie
Harvest time June to October

Flowering

Flower colour white

Foliage

Foliage persistence Evergreen
Foliage colour medium green

Botanical data

Genus

Fragaria

Species

ananassa

Cultivar

Ostara

Family

Rosaceae

Other common names

Garden Strawberry, Pineapple Strawberry

Origin

Cultivar or hybrid

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Planting and care

The 'Ostara' Strawberry appreciates rich, deep, and well-drained slightly alkaline soils. Remove adventives and rocks from the soil. Planting this variety is preferably done in autumn. Choose a sunny location. Strawberry plants are good companions for garlic, beans, lettuce, onions, leeks, thyme, and spinach. However, they do not appreciate the company of cabbages and other brassicas. Strawberries remain in place for 3 to 4 years.

In open ground: Space the plants 35cm (14in) apart in all directions. Dig a hole, place the strawberry (the collar should be level with the ground) and cover with fine soil. Water generously. If your soil is moist, plant the plants on mounds 10 to 20cm (4 to 8in) high.

In a pot: Place a layer of gravel or clay balls at the bottom of the pot to facilitate drainage. Fill the pot with a mixture of potting soil, garden soil, and compost. Place , cover with soil and pack well. Water generously.

 

Regularly hoe. Mulch around the plants in summer to maintain soil moisture. Install a protective net before the fruits turn red to avoid sharing your harvest with birds... You can also install ash or coffee grounds near young plants to repel slugs and snails. Water regularly, especially in hot weather. In autumn, remove dry leaves.

Apply compost on the surface in spring. In cool regions, install a tunnel in spring to protect the plants from spring frosts during flowering.

The plants need to be renewed every 3 or 4 years. This variety multiplies through stolons, small creeping stems that naturally root in the soil, forming new plants. To avoid exhausting the parent plant, cut the stolons and replant them if desired.

Wait 4 years before replanting Strawberry plants in the same location.

Planting period

Best planting time September
Recommended planting time February to May, August to November

Intended location

Suitable for Meadow
Type of use Container, Vegetable garden, Greenhouse, Conservatory
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Beginner
Planting density 4 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral, Any
Soil type Silty-loamy (rich and light), Rich in organic matter

Care

Pruning No pruning necessary
Soil moisture Wet
Disease resistance Good
Overwinter Can be left in the ground

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