Sow hardy annuals
For some early cut flowers next summer, many different hardy annuals, such as clarkia, larkspur, calendula, ammi and nigella, can be sown in autumn to produce strong seedlings that will over winter. The seed can either be sown in rows in the garden, or I prefer to start them off in cell trays in a cold frame or cold greenhouse. Just two or three seeds per cell will produce a healthy clump of seedlings that can be planted out at a later date.
Keep picking annuals, such as zinnias and cosmos, to keep the plants growing and flowering for a few more weeks. By preventing them from se ing seed they’ll continue to produce more flowers as long as the weather is mild.
Make a list of bulbs you want to plant for spring flowers and get them ordered or bought as soon as possible ready for autumn planting.
The seeds of many hardy annuals can be started off now in cell trays in a cold greenhouse