Brad recently attended a conference about future trends in the rose growing business. At one of the sessions Brad heard a leading rose market researcher discussing a change in the home gardening market for rose bushes. While 90% of current rose bush sales in the home gardening market are for bare- rooted plants about 12 months old, the researcher expects a very strong growth in the market for more mature roses in pots. Brad thinks that the Brittany, Taylor and Madonna varieties would do well in this new market. Given the different qualities of each rose, Rosanna Roses would be able to capture a large share of the potted rose market. He expects that each of the 1000 roses that would be planted on the spare hectare of land could be sold for $50 in 7 years from the commencement of the project. The costs of growing the roses up to this point would be the same as they are for the cut- flower market and the flowers could be sold until the rose bushes are transferred to pots for sale. The rose bushes would be harvested after flowering has finished for the year. The bushes would be presented in pots that would appeal to the upper end of the market and each pot would cost $10.

What should I understand? Is that 1000 roses sale for 7 years? What does it mean that'The rose bushes would be harvested after flowering has finished for the year'?