Periodic deep watering may be needed depending on rainfall amounts. Using mulch on top of the soil will help retain soil moisture during the growing season. These are either rooted cuttings or cuttings grown for some time in soil to give increased development. As soon as possible plant the plants 10 inches apart in the garden. To obtain the best effect, group three or more plants together in the border.
Chrysanthemums are widely available in late summer-autumn for planting as well.
In early spring you may dig up and divide clumps that bloomed the previous autumn and over-wintered in your garden. You may also separate vigorous plants into single stems with enough roots to warrant transplanting. Less vigorous plants should be divided so that three growing points or stems remain in each of the new divisions. You may leave over-wintering clumps in position and thin out the shoots to 8 to 10 inches apart. It is usually better practice, however, to dig out the old clumps and reset new divisions.