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Two years ago, I planted the Autumn Revolutions cultivar of bittersweet near a garden trellis. The vines took over the trellis quite nicely, but it has not fruited.

I know most varieties of bittersweet require both a male and female plant to produce fruit, but this cultivar is supposed to have both male and female parts on the same plant, and thus be self-fertile.

I did try to plant two separate vines on either side of the trellis, but only one thrived. I have not seen any flowers on the established plant either year.

I am about to re-plant the second vine, but was wondering if I there is anything else I can do to encourage fruit production on the established plant.

Perhaps the plant I purchased was faulty and did not actually have both the male and female parts?

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The grower's site indicates

The majority of the flowers formed on Autumn Revolution are perfect, meaning that the flower itself has both male and female parts.

So you do not need two plants. It can sometimes take a few years for a plant to get established and able to flower and fruit.

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