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sunflower 'Double Whammy' | Plant Finder | Fill My Garden

Home/Plants/Perennials

Plants > Perennials

sunflower 'Double Whammy'

Helianthus 'Double Whammy' (d)

Genus: Helianthus
Family: Asteraceae

About this plant

'Double Whammy' is a clump-forming perennial to around 90m tall with rich green, ovate leaves.Double golden-yellow flowers up to 15cm across are borne from summer into autumn and comprise a ring of elliptic ray florets surrounding a central mound of tubular disc florets

Growing Information

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Hardiness

Foliage

Deciduous

Growing Conditions

Sunlight

Full Sun

Soil

ClayChalkLoam

AlkalineNeutral

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Moisture

Poorly Drained

Aspect

South FacingWest FacingEast Facing

Exposure

Exposed

Care Guide

Cultivation

Grow in a moderately fertile, humus-rich, moist but well-drained, neutral to alkaline soil in full sun. Needs a long hot summer to flower well. May need support

Pruning

Cut back after flowering

Propagation

Propagate by division in spring or autumn

Pests

Can get slugs and snails

Diseases

May be affected by powdery mildews and sclerotinia diseases

Garden Uses

Uses

Ground CoverRock GardenBanks Slopes

Planting Places

OutdoorIndoor

Season of Interest

SpringSummerAutumn

Size & Characteristics

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Habit

Climbing

Time to Full Height

Five To Ten Years