Loads - Hebes for a start. Need to know what size you want, where its going to grow in terms of shade, sun, cold, etc to narrow down the list a bit.

This is a daft question as Guest can't answer. you need to join GoY Guest and ask properly

Here are examples of shrubs without thorns and berries, which flower in spring:
-Spirea argura or Spireavanhouttei
-Prunus laurocerasus (sort Etna is a beautifull evergreen 2 m high or higher if not pruned)
-rhododendrons and azaleas
-kolkwitzia sp.
-jasminum
-Deutzia scabra Piena or rosea (smaller bush) ets.

From those flowering in the summer I would like to mention Ceanothus (especially good for your climate), Hibiscus syriacus or Hydrangea.
All these bushes are safe for children, as I guess you are looking for bush safe to childer.