Kindergarten and schools are not obliged to offer mother tongue education.
In Hamburg, no special mother tongue teaching is offered in the kindergartens. There are bilingual kindergartens supporting for example the languages English, French, Spanish. A list of kindergartens with bilingual language offer can be found here http://www.kinderwelt-hamburg.de/Kitas.264.0.html
Mother tongue education takes place at Hamburg schools, priority in elementary school, in the languages Turkish - Russian - Polish - Bosnian - Farsi - Albanian and Dari.
The traditional language instruction is integrated into everyday school life and given by employed teachers. In addition, there are other locations where lessons are given as a central offer in the afternoon. Teaching in the language of origin is an additional offer and participation is voluntary. (Http://li.hamburg.de/herkunftssprachlicher-unterricht/)
In secondary schools, lessons in the origin language can be given either as a supplementary course offer or as a second or third foreign language. In secondary schools, French, Latin, Russian or Spanish can be learned as a second foreign language.
In the district schools, students can choose Chinese, French, Latin, Polish, Russian, Spanish or Turkish as their second foreign language.
As a third foreign language, French, Spanish, Russian, Latin, Italian, Turkish or Chinese are available at Gymnasium.
Further information about the languages and the schools offering the languages: http://bildungsserver.hamburg.de/sprachen/