STEP BY STEP Sow indoors

SOWN indoors in the warmth, rudbeckia seeds will grow away quickly, germinating about 14-21 days after sowing. When they have more than two leaves, prick them out, each into its own small pot ( see page 115). Place the pots in a draught-free, well-lit spot, keeping the compost damp but not wet. Harden off and plant out when the risk of frost has passed.

Prepare a tray or pots of seedsowing compost, tapped to consolidate it and left in a tray of water to make it damp. Sprinkle the seeds evenly on the surface.

Cover the seeds lightly with 5mm of compost or vermiculite. You can use the holes in the base of a flowerpot to shake an even layer over the seeds.

Place a plastic lid or bag over the seed tray to keep in moisture. Put the tray on a heated propagator or windowsill for warmth. Remove the bag or lid daily for ventilation.