THE URBAN GARDENER
You can still enjoy gardening even if you’ve only got a window box. Here, Constance Craig Smith shows you how to grow rudbeckias
WHY GROW THEM?
Rudbeckias, which look like small sunflowers with a pronounced, cone-like centre, light up the garden from July to October and attract pollinating insects. Some varieties can become invasive, so growing them in a pot will help keep them in check.
WHEN TO PLANT
You can buy them now in garden centres or by mail order; seeds can also be sown now for flowering next year.
Rudbeckias can be both annual and perennial. Perennials include yellow
R. fulgida var. sullivantii ‘Little Gold Star’ and the unusual R. occidentalis ‘Green Wizard’.
WHERE TO PLANT
They need full sun so place your container in a warm, sunny spot.
HOW TO PLANT
Rudbeckias dislike damp soil, so use good freedraining soil. As they’re vigorous growers, only plant one per pot. Once established, perennial rudbeckias are pretty trouble-free but benefit from a mulch of wellrotted manure in spring.
‘Little Gold Star’