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rudbeckiaPropagation & harvesting guides

Please refer to the general growing guide for more in-depth information on growing processes.

Rudbeckia hirta ‘Black Eyed Susan’

Colour: Orange/yellow petals with black centres (flowers can be double or single).

Type: Perennial (short-lived), biennial, hardy annual.

Height: 40cms – 90cms

Timing: Will produce flowers from early spring or autumn sowings. Late spring/summer sowings may not flower until following year. 

To purchase seeds from this variety please visit our online shop - thank you.

I’ve always grown Rudbeckia and relied on their profusions of late summer blooms to add to bouquets and floral designs.  Its bright, cheery flowers add fantastic colour and work brilliantly with both summer and autumn colours.  ‘Hirta’ produces masses of flowers from mid-summer through autumn and are an absolute must – have for creating floral bouquets and arrangements.  Their warm bright colours are just the perfect pick-me-up in late autumn – I hope you enjoy then as much as I do.


Sow seeds indoors from March – April onwards.  Sow into seed compost and very lightly cover the seeds.  Germination usually takes place within 2 – 4 weeks.  

Plants are cool hardy so can be sown in late summer / autumn and overwintered outdoors with frost cover.


Seedlings can be pricked out of their seed tray as soon as they are big and strong enough to handle. They can then be further transplanted into their permanent position once they have developed a strong, healthy root system.

Rudbeckia hirta is a cool – hardy plant and it can be planted out when there is still a risk of frost but would be advisable to use frost protection until danger of frost has passed – usually mid to late May. 


Plants produce masses of long stems which benefit greatly from crop support to help them stay upright during periods of wind and heavy rain.  Small seedlings can be tempting for slugs and flowers can be a target for greenfly.  


Rudbeckia hirta not only has fantastic vase life but is an excellent cut – and – come – again plant. It will keep producing more stems as you cut.  To encourage the plant to grow long, very usable stems take all cuts from as close to the base of the plant as possible.   The best time to cut flowers is when their petals have just opened.