From the back cover:

Far out in the depths of space turns the world called Brisbidine -- the Planet of Flowers. In his sentient starship Windhover, Gerard Manley comes to this strange world with his wife ShRil and his young daughter CrRina to probe the deadly mystery of its beautiful flora.

But a greater danger awaits him on Brisbidine. A vengeful enemy from Manley's forgotten past holds the secret to his missing years. And an ancient alien with godlike powers plots his destruction. Filled with high adventure and haunting wonders, Planet of Flowers is the moving final chapter of Gerard Manley's star-spanning saga.