Santander
The horses would be in a field where a small mpatch of land fenced off by wire, has spring bulbs palnted in the soil to grow for next spring. Crocasis, snowdrops, daffodills, tulips, hyacens ... would these flowers harm a horse if eaten or sniffed?
Answer: Yes, it is extremely risky to just plant one species of tree on a street. In Minneapolis they have had the same problem twice. They palnted nothing but american elms. A disease came though and killed off almost every tree. People have spent thousands of dollars to save the trees. After that they planted all ash trees. Nw they have an insect that is killing off all of those trees. So you can guess the answer. PLANT DIFFERENT SPECIES!!!
plants use CO2 as food along with sunlight and the soil they are palnted in to produce O2 as a oxygen for use to breathe. this is why there is a constant battle between man and the rainforest. this is a nutshell answer