Hydrangeas would have to be one of my favourite flowering shrubs, they are one of the things I really love about summer.  I have planted six hydrangeas along the back of my house, and they are thriving, they must really love the spot they are planted in.  Have you ever wondered how to keep that blue hydrangea you bought last summer flowering with beautiful blue flowers, thought you were, well we have some tips for you today to grow perfect hydrangeas all summer long, but you have to start planning now.


Image: Veranda


The Hydrangea is a hardy summer shrub and the colour of your hydrangea depends on the pH of your soil.  In a strong acidic soil your flowers will turn blue and in an alkaline soil your flowers turn pink or even red. In slightly acid or neutral soil, blooms may be purple or a mix of both blue and pink on one single hydrangea plant. Hydrangeas prefer to be planted in a well drained soil.  You can change the color of your hydrangea blooms based on the soil composition in your garden. 


Image: Better Homes & Gardens


White hydrangeas will stay white regardless of the ph level in your soil.  Bunnings provide a very easy option for changing the colour of your hydrangeas, you can buy a pink fertiliser  or a blue fertiliser to add to your soil.  It should be applied according to the directions on the pack. Hydrangeas are thought to be a very old fashioned shrub and people often remember them growing in their grandmother’s garden. The older varieties were sometimes known to be too tall and lanky but now new pant breeders have developed some excellent new varieties which are more compact and come in a range of sizes


Image: keyakidori Blog

Sun & Shade

Hydrangeas are best suited to a semi shaded position and don’t like extremely hot conditions, they also prefer the morning sun and afternoon shade. Coastal climates are ideal, as are cool summer areas.  Your hydrangea will not bloom when its planted in complete shade.


Image: Home Bunch


During the warmer months its important not to let your hydrangea dry out, or they will wilt. They need regular watering, particularly in late spring and through summer. Give hydrangeas growing in the ground a deep soaking once or twice a week in summer, but remember to water your potted hydrangea plant daily as they will dry out much quicker. 


Image: Neiman Marcus


Most hydrangea plants bloom on old wood, so severe pruning is not necessary. Prune away all the dead wood each Autumn, and dead head the flowers that are finished blooming to promote the most flowers on each bush.

Lastly, they look fabulous when picked from your garden and placed in a vase inside.  Hydrangeas are sold at nurseries throughout the early summer months of December to January.