Herbs to Induce Labour?

I am 40 weeks pregnant and am considering using herbs to help induce my labor. Can you advise me on which ones are safe for the baby. My OBGYN checked me today and informed me that my cervix is not quite ripe enough for him to strip my membranes. He wants to induce me in a week.
Any advice would be greatly appreciated. I am in 30 years old and in good health.

I cannot recommend herbs to induce labour. It is not safe to use herbs at this time without expert consultation and supervision.
In a future pregnancy, raspberry leaf tea can be taken during the last three months of pregnancy to tone the uterus in preparation for the birth. The therapeutic dosage is up to 3 cups a day of the tea made with one to two tablespoons of the dried leaf to a cup of boiling water. For more information on herbs to use in pregnancy, I recommend the book "The Natural Pregnancy Book" by Aviva Jill Romm (publishers "The Crossing Press", Freedom, California).