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

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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 18 November 2019)

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