Plant Care

How to Grow Rudbeckia (UK guide)

Botanical nameRudbeckia hirta
DifficultyEasy
SowingSow seeds indoors from March and plant out after the last frost.
FloweringJuly to October
LocationSunny borders, wildlife gardens, containers
Perfect forPollinator-friendly beds, late summer colour, low-maintenance borders

Known as Black-Eyed Susan, Rudbeckia is famed for its bold yellow blooms with dark centres. It grows happily in borders and large containers, offering long-lasting colour and easy maintenance.

Cluster of Rudbeckia hirta with golden petals and dark centres, set against lush garden greenery

A cheerful addition to any garden

Rudbeckias are vibrant, easy-care perennials and annuals ideal for sunny borders and containers. These long-flowering plants provide months of colour and support pollinators through summer and into autumn.

For the Bees

Long-lasting blooms, wildlife friendly, low maintenance

How to Grow Rudbeckia from Seed

  1. 01Fill trays with moist seed compost
  2. 02Scatter the fine seeds lightly on the surface
  3. 03Do not cover seeds as they need light to germinate
  4. 04Place trays in a warm, bright spot at 18–21°C
  5. 05Once seedlings appear, prick out into small pots when large enough to handle

You will need

  1. 01Full sun
  2. 02Moist, well-drained soil
  3. 03Regular deadheading
  4. 04Monthly balanced feeding

Grow young rudbeckia plants on in bright, cool conditions to prevent weak growth. Avoid overwatering and ensure good airflow so plants develop strong stems before planting out.

Plant Calendar

Plant planting calendar: Mar–Mar: Sow indoors • May–May: Direct sow outdoors • May–Jun: Flowers

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
When to SowDirect Sow / OutdoorsFlowers / Harvest
Cluster of Rudbeckia plants in a sunny flower bed, alive with bees and butterflies

Rudbeckia essentials

Full sun

Rudbeckias flower best when planted in a spot receiving at least 6–8 hours of sunlight daily.

Moist, well-drained soil

Ensure soil is consistently moist but not waterlogged for healthy growth and flowering.

Regular deadheading

Remove spent flowers to encourage repeat blooming throughout the season.

Balanced feeding

Apply a general-purpose liquid feed monthly during active growth.

Vivid Rudbeckia flowers in full summer bloom surrounded by green foliage

Rudbeckia: FAQs & Common Problems

Rudbeckia FAQs

CONEFLOWERS A favourite flower amongst pollinators and adding structure to the garden.