Hydrangea Blue Wave

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Another Morrisons Plant which has been a lovely addition to the garden underneath the arch. Bought 6th June 2013 as shown.

Photos at Time of Purchase

Hydrangea Blue Wave

Hydrangea Blue Wave


Hydrangea can be deciduous or evergreen shrubs, or self-clinging climbers, with flowers in clusters usually comprising both small fertile and more showy sterile flowers; often good autumn colour. Other common names hydrangea ‘Mariesii Perfecta’.

Hydrangeas give their best blue flowers on acidic soils with a pH 5.5. When grown on neutral soil, (with a pH of 7), the flowers will predominantly be pink, although you may also get blue or mauve blooms. If you want to make sure that your Hydrangea has blue-toned flowers, you will need to make sure your pH does not creep above 6.5. To lower the pH on a neutral soil, you can treat it annually with aluminium salts. It’s much harder however to alter the pH of limey (alkaline) soil, so it’s much easier to grow white or pink hydrangeas instead.

  • Eventual Height: 2m
  • Eventual Spread: 2.5m

Where I planted

Planted to the left of an arch in the ground.

Other Photos

5th June 2014
5th June 2014
3rd July 2014
25th July 2014

Further Info

General info here: RHS and Telegraph and Gardeners World

Things to Remember

  • Possibly watering with hard tap water might make them go Pink.
  • Hydrangeas do not like to dry out. In dry weather, soak the roots with a hose and the plant will usually recover.
  • Remove faded flowerheads in spring after the danger of frosts, cutting back the flowered stems to a strong pair of buds.
  • Take out misplaced or diseased shoots.
  • Mulch young plants with a well-rotted manure or compost in spring.
  • Once established, remove a quarter to a third of the shoots to the base of the plant.
  • It makes an excellent cut flower.