How to Grow Alpine Strawberries USA

Soil & Growing Conditions

Water: Water to keep soil evenly moist, especially in hot weather; mulch to protect over winter (UF/IFAS Extension)

Growth Stages

Stage	BBCH	Notes
Sowing and establishment	0	Sow seed at 55-64°F (13-18°C) in spring, germinating within about 4 weeks or more (RHS; PFAF); alternatively remove and transplant runners, or divide runners in July/August ready for the following season's crop (RHS; PFAF).
Vegetative growth	3	Low, spreading, stoloniferous rosettes; full sun gives the best fruiting though partial or light shade is tolerated (RHS; PFAF). Tolerates shadier sites than the garden strawberry (UF/IFAS Extension).
Flowering	6	Flowers April-May (PFAF). Many alpine strawberry cultivars are day-neutral, meaning they flower and fruit continuously rather than in one or two flushes (UF/IFAS Extension).
Fruiting and harvest	8	Small (~1cm-15mm), aromatic red fruit forms from June (PFAF); day-neutral cultivars continue fruiting from spring through to hard frost (UF/IFAS Extension).

Quick Facts

Factor	Value
Soil texture	Clay, loam or sand (RHS); light, medium or heavy (PFAF)
Drainage	Well-drained, moisture-retentive (RHS; PFAF)
Lifecycle	Herbaceous perennial, semi-evergreen (RHS). Unlike the garden strawberry, alpine strawberry is a diploid species; the garden strawberry (Fragaria x ananassa) is octoploid and takes 3-7 years of juvenile growth before flowering, a genuine genetic difference underlying much of their practical difference in the garden.
Edible parts	fruit, leaves

At a Glance

Harvest & Storage

When to pick: Small, aromatic, sweet red fruit, about 1-1.5cm (RHS; PFAF), far more flavourful than commercial garden strawberries but too soft and small for long-distance transport, which is why it stays a garden crop rather than a commercial one (UF/IFAS Extension). Day-neutral cultivars fruit continuously from spring to hard frost.

Diseases

Grey mould

low

Botrytis cinerea

Soft brown fruit decay; Fuzzy grey-brown mould

Named directly on RHS's own growing-guide page as grey mould on fruit.

Foot and root rot (general)

low

Named directly on RHS's own growing-guide page as "root rot".

Pests

Glasshouse red spider mite (two-spotted spider mite)

low

Tetranychus urticae

Named directly on RHS's own growing-guide page.

Aphids

low

Aphididae (various spp.)

Named directly on RHS's own growing-guide page.

Vine weevil

low

Otiorhynchus sulcatus

Named directly on RHS's own growing-guide page.

Slugs

low

Gastropoda (slugs, various spp.)

Named directly on RHS's own growing-guide page.

Sources

1. University of Florida IFAS Extension - Alpine Strawberry as a Potential Niche Crop for Florida Growers and Homeowners (HS1326)

   Day-neutral, fruits spring to hard frost. Soil: fertile, humus-rich, well-drained, watered evenly especially in heat, mulched over winter. Tolerates shadier sites than garden strawberry; suited to perennial beds, walkways, containers. Far more fragrant/flavourful than commercial garden strawberry, but fruit small (~1g), too soft for long-distance transport -- explains why it stays a niche/garden crop rather than commercial one. Genetics: diploid vs garden strawberry's complex octoploid genome, which needs 3-7 years juvenile growth before flowering. Runner production varies by cultivar/seed-line: some form stolons (used as groundcover), others (true "alpine" types) do not (used as border plants) -- alpine strawberries are essentially wild strawberries selected not to runner.

These source is specific to this region. The full list of 2 sources behind this guide (Royal Horticultural Society, University of Florida IFAS Extension) is in the references of our UK guide to alpine strawberries; they describe the plant itself, which is the same wherever it grows.