He is best remembered for his paintings of plants, especially roses and lilies. His paintings from Empress Josephine's garden at La Malmaison provide modern gardeners with an invaluable visual documentary of the roses grown two hundred years ago. Flowering more than once in a season. Species roses tend to bloom once a season. Host plant to which selected rose varieties are grafted.
Most commercial growers propagate new plants by grafting cuttings to a rootstock.
The advantage of rootstock is that many roses, especially modern cultivars, have weak root systems. The primary rootstocks used are Rosa multiflora, 'Dr. Huey,' with 'Fortuniana' recommended for very warm climates. The issue of whether 'own root' roses or grafted roses are better is one of the enduring debates of rosarians, and each technique has its advantages. Cold hardiness is the primary benefit of 'own root' roses, while grafted roses are often attributed with greater vigor. Leaf veins which are deeply etched into the leaf.