In cold areas with an early autumn it is preferable to plant April/May or June to allow the plants to make a seasons growth before their first winter. In mild areas, if you are unable to water, with low summer rainfall it is advisable to plant September or October so that the still warm soil will allow them to make useful root growth and some top growth before winter.
In all other areas because the plants are container grown they can be planted between mid March and October. Watering may be necessary a few times until they are established. Between November and mid March do not plant outside, you can, however, order and upon receipt repot in an eight inch pot and overwinter in a greenhouse or conservatory that receives direct sunlight. Ensure that the roots do not freeze. Water occasionally. The plants will get off to a quick start when you plant out in April. In major frost pockets and severely exposed windy sites there are a few species that will grow but they will not make such good specimens as those growing in more sheltered, warmer areas.
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