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Making spirits happy: To please the spirits of the dead many rich Romans grew huge rose gardens to provide petals for their grave sites.
Flower sexuality:In the majority of species, individual flowers have both pistils and stamens as described above. These flowers are described by botanists as being perfect, bisexual, or hermaphrodite. Best soil chemistry for roses: Roses seem to grow best in soil that has a chemical pH of about 6.5.
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