Symphyotrichum novae-angliae 'Andenken an Alma Pötschke' provides welcome late colour in the garden. Often known as an aster or Michaelmas daisy, this is a perennial plant, dying down each year in the autumn. It forms clumps of stems, growing to 1.5 metres tall, and produces masses of vivid salmon pink flowers in late summer through to mid-autumn. We don’t know who Alma Pötschke was, but interestingly ‘Andenken an’ means ‘in memory of’. The plant does best in full sun, but will tolerate partial shade. It is fully hardy in UK conditions and prefers moist, fertile and well-drained soils. An ideal variety for the middle of a herbaceous border, its foliage can be cut back in winter or early spring to clear space for new growth. The plant is easily divided – best done in autumn, after flowering, or in spring – and has a good resistance to mildew, often a problem with asters. You can find it in the Hayrick Border in the Parks.