Planting summer blooming bulb flowers

Many summer flowers germinate reliably even at low temperatures and can therefore already be sown directly in the open ground. They then bloom later than plants grown indoors, but are usually more vigorous and bloom more abundantly and persistently. Suitable for early sowing outdoors are, for example, cosmea, California poppy, sunflower, aster, zinnia, nasturtium, maidenhair, strawflower, marigold or sweet pea.

As long as the elder blooms, this month can still sow fast-growing summer flowers such as marigold, nasturtium, maidenhair, vetch or cup mallow. These plants germinate very quickly and bloom after only six to eight weeks.

The biennials sown a few weeks ago, such as evening primrose, golden violet, bearded carnation, foxglove, bellflower, pansy, forget-me-not or hollyhock, are now too dense in the sowing tray and need to be singled out (pricked).