Filipendula
Filipendula ulmaria
Wet ground is not a problem here but a requirement — let the soil dry out and mildew follows.
Light Full sun or partial shade.
Water Wants soil that stays consistently moist, even wet.
Height 1.2 m
Spread 23.6 in
Spacing 60 cm
Spacing & sowing
- Plant spacing
- 23.6 in
- In-row spacing
- 23.6 in
- Between rows
- 2 ft 6 in
- Square-foot density
- Not suited to SFG
Growing
- Type
- Flower · Perennial
- Botanical family
- Mixed / other
- Sunlight
- Full sun or partial shade.
- Watering
- Wants soil that stays consistently moist, even wet.
- Feeding
- No feeding needed on moist, fertile ground.
- Frost tolerant
- Yes
- Flowering
- June
- Pruning
- Cut back once the flowers are over.
- Overwintering
- Fully hardy; it dies back to the ground on its own.
Through the year
- Mar–Jun Spring Growth
- Jun–Aug Flowering
- Aug–Nov Growing
- Nov–Dec Leaf Fall
- Jan–Mar Leaf Fall
Pests & problems
- Powdery mildew Powdery mildew when the soil dries out — keeping it moist is the fix
- Rhizomes that spread, and may need containing in a small garden
The Cottage Garden Companion — the gardener's herbarium at cottagegardencompanion.com