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How to grow Black-eyed Susans (rudbeckia) in the UK

Golden daisies with dark middles from late summer into autumn.

Black-eyed Susans (rudbeckia)
Photo: Krzysztof Ziarnek, Kenraiz ยท CC BY-SA 4.0

When to sow, plant and harvest black-eyed susans (rudbeckia)

Plantmid April to mid June or early September to late September
In flowermid July to mid October

Dates are for central England. Sow about two weeks later in the north and Scotland, and up to two weeks earlier in the south and south west. Get the dates for your postcode.

Planting it

  1. Water your new plants in their pots first
  2. Dig a hole a bit bigger than the pot
  3. Tip the plant out gently, holding the leaves, not the stem
  4. Pop it in the hole, firm the soil around it, and water well
  5. Space the plants about 45cm apart each way

Top tips for growing black-eyed susans (rudbeckia)

Soil and feeding

Poor soil - really!. Nasturtiums flower best in poor soil. Feed them and you get all leaves and no flowers.

Harvesting and eating black-eyed susans (rudbeckia)

Cut them for a vase - they last well.

Saving your own black-eyed susans (rudbeckia) seed

Late summer and autumn, as the flowers fade.

  1. Stop deadheading a few flowers - let them fade on the plant
  2. When the seed heads are dry and brown (and the seeds rattle), snip them off on a dry day
  3. Shake the seeds into a paper bag
  4. Spread on a plate to dry for a week

Where to buy black-eyed susans (rudbeckia) plants

Thompson & Morgan · Suttons · Amazon

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Black-eyed Susans (rudbeckia) questions

When do I plant out black-eyed susans (rudbeckia)?

Plant black-eyed susans (rudbeckia) out from mid April to mid June or early September to late September.

When can I enjoy black-eyed susans (rudbeckia)?

Black-eyed Susans (rudbeckia) is ready from mid July to mid October. Cut them for a vase - they last well.

How long do black-eyed susans (rudbeckia) take to grow?

Roughly 10 weeks from sowing or planting until the first harvest.

Are black-eyed susans (rudbeckia) easy to grow?

Black-eyed Susans (rudbeckia) are rated 'easy peasy' for beginners, and can be grown in the ground or a raised bed or in pots and containers.

Plan your own garden: it tells you what to do and when, for your postcode.

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