Kōrero: Soils and regional land use

Blue and pink hydrangeas

Blue and pink hydrangeas

Some flowers react to the acidity of the soil by changing colour. Hydrangeas produce blue flowers in acid soils when they take up aluminium, and pink flowers in alkaline soils when aluminium uptake is prevented.

Te whakamahi i tēnei tūemi

Natural Sciences Image Library of New Zealand
Reference: Bo1358Rbt.tif (top); Bo1352Rbt.tif (bottom)
Photographs by G. R. Roberts

This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Allan Gillingham, 'Soils and regional land use - Overview', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/17083/blue-and-pink-hydrangeas (accessed 29 March 2024)

He kōrero nā Allan Gillingham, i tāngia i te 24 Nov 2008