Hydrangea macrophylla 'Soeur thérèse'
This is a sturdy, well-branched hydrangea. The external shoots rarely blossom, so it is advisable to pluck them out at once, in order to encourage the fructiferous branches.
The stems are slender, and the dazzling white inflorescences become a pale greenish blue in the autumn. This hydrangea does not withstand full sunshine: a semi-shady site will allow it to display all its beauty. It is a splendid plant, and its lightness and freshness are incomparable.