🌼 Bidens aurea ‘Bur Marigold’ – Bright Yellow Annual for Borders and Wildlife Gardens

Bidens aurea, commonly known as Bur Marigold, is a vigorous annual flowering plant producing masses of golden-yellow, daisy-like flowers with contrasting dark centres. Fast-growing and free-flowering, it blooms continuously from early summer into autumn, bringing bright colour to borders, wildflower plantings, naturalistic gardens and pollinator-friendly areas. Its open flowers are highly attractive to bees and beneficial insects, making it both decorative and ecologically valuable.

Key Features

● Bright yellow daisy-like flowers with dark centres

● Free-flowering and fast-growing habit

● Long blooming season through summer

● Excellent pollinator and wildlife plant

● Ideal for borders, wildflower mixes and natural planting

How to Sow & Grow Bur Marigold (UK)

Sow indoors: III–IV (March–April)

Transplant outdoors: V–VI (May–June) after last frost

Direct outdoors: IV–V (April–May)

Flowering: VI–IX (June–September)

Life cycle: Annual

Germination temperature: 16–22 °C (61–72 °F)

Average germ time: 7–14 days

Depth: Surface sow – do not cover; press gently into soil (light required)

Light required: Yes

Moisture: Moderate

Environment: Full sun (tolerates light shade)

Soil type: Well-drained soil; tolerates poor soils

Plant spacing: 25–30 cm (10–12 in)

Height: 60–90 cm (24–35 in)

Sowing & Growing Tips (variety-specific)

● Prefers sunny, open positions for best flowering.

● Tolerates heat and short dry periods once established.

● Deadhead spent flowers to encourage continued bloom.

● Suitable for low-maintenance and wildlife-friendly gardens.

● May self-seed lightly in favourable conditions.

Special Features

● Cheerful, bright summer flowers

● Highly attractive to pollinators

● Easy annual with natural garden appeal