I was browsing some websites the other day and came across a site that had some miniature horses posed for pictures standing by oleander bushes. I don't even remember what site it was but thought I would mention here how dangerously poisonous oleander is. Just one leaf eaten by a miniature horse will cause death. The dried leaves of oleander are more deadly and can easily blow into a pasture or pen. The smoke from burning dried oleander is poisonous. I have known several people that have lost their beloved minis to oleander. Please be very cautious where oleander is concerned.