When to plant Foxglove in Cool Australia

Cool zone — applies to Hobart, Canberra, Ballarat, Orange, Armidale and similar areas. Growing elsewhere? Temperate · Subtropical · Tropical · Arid.

Sow foxgloves direct from February to April, giving this hardy biennial the whole cool season to establish before it flowers the following spring. Scatter the dust-fine seed just 3 mm deep, barely covering it, as it needs light to germinate. Be patient through a variable 14–35 days to sprout. Thin to 30–40 cm between plants with rows 30–45 cm apart, letting the tall flower spikes stand clear. From an autumn sowing, expect towering bell-covered stems in roughly 120–130 days of active growth, opening in spring and early summer across cooler gardens around Hobart, Canberra and Ballarat.

Sowing calendar — cool zone

Green months are your sowing window: February to April.

Growing notes

Foxgloves relish cool-zone conditions and the reliable winter chill of places like Orange and Armidale, overwintering as a leafy rosette and throwing up their statuesque spires in their second season. Sow in autumn so plants are well grown before winter and ready to bolt into flower as spring arrives.

The fine seed at 3 mm is the first hurdle: sow it on a firmed, weed-free surface, press it in without burying it, and keep it evenly moist through the long 14–35 day germination. Erratic moisture is the usual cause of thin, patchy stands. Give the seedlings dappled shade to morning sun and rich, moisture-retentive soil.

The common failure in exposed cool gardens is wind snapping the tall spikes just as they peak, so plant in a sheltered spot or stake early. In humid, still weather the lower leaves can develop leaf spot and powdery mildew; space plants at the full 30–40 cm and remove affected foliage to keep air moving. Foxgloves self-sow generously, so leave a few spikes to seed if you want a self-renewing patch, and remember all parts are toxic, so site them away from where small children or pets might nibble.

Foxglove at a glance

Common questions

When do you sow foxglove seed in a cool climate?

Sow direct from February to April so the biennial establishes over autumn and winter. It then flowers the following spring and early summer.

Why is my foxglove not flowering the first year?

Foxgloves are biennials, forming a leaf rosette in the first season and flowering in the second. Cool-zone winter chill actually helps trigger strong spring spikes.

How do I stop foxglove spikes falling over?

Plant them in a sheltered spot out of strong wind, or stake the spikes early before they reach full height. Exposed cool gardens are especially prone to wind snap.

Are foxgloves poisonous?

Yes, all parts of the plant are toxic if eaten, so site them away from young children and pets. Wash your hands after handling and avoid planting near edible beds.

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