How to grow Michaelmas Daisy in the UK
Symphyotrichum
Michaelmas Daisy (Symphyotrichum) is a flower that grows well in UK gardens. Autumn essential. New England types resist mildew better than old varieties. This guide covers when and how to sow Michaelmas Daisy, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
When to sow & grow Michaelmas Daisy
Sowing and harvest window through the year (UK):
Jan | Feb | Mar | Apr Plant | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
Soil, position & care
- Soil
- Fertile, moisture-retentive but free-draining soil
- Soil pH
- 6.0–7.5
- Position
- Sun or part shade depending on species
- Sowing depth
- Plant at the same depth as the pot
- Spacing
- 30–60 cm apart
- Sowing
- Plant container-grown stock spring or autumn; divide established clumps in spring
- Growing
- Water well the first season until established; mulch in spring
- Harvest & upkeep
- Cut back faded foliage in late autumn or early spring; divide every 3–4 years
- Watch for
- Slugs and snails on new shoots; otherwise robust
Companion planting for Michaelmas Daisy
No specific companion notes for this plant.
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Michaelmas Daisy FAQs
How much sun does Michaelmas Daisy need?
Michaelmas Daisy prefers full sun (6+ hrs direct).
When should I plant Michaelmas Daisy in the UK?
In the UK, plant Michaelmas Daisy in April. Planting in this window gives the roots time to establish before the plant is asked to grow away.
Is Michaelmas Daisy easy to grow?
Easy — good for beginners. Autumn essential. New England types resist mildew better than old varieties.