They are propagated very easily by half-ripened greenwood cuttings at nearly any time of the year, under glass, and by seeds sown soon after maturity; the varieties are sometimes grafted on the common form in early spring, under glass. | They are propagated very easily by half-ripened greenwood cuttings at nearly any time of the year, under glass, and by seeds sown soon after maturity; the varieties are sometimes grafted on the common form in early spring, under glass. |