Hydrangea Serrata 'Bluebird' (Hydrangea)

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Position: full sun or partial shade
Soil: moist, well-drained, moderately fertile, humus-rich soil
Rate of growth: average Flowering period: June to September
Hardiness: fully hardy
Flattened heads of beautiful, blue mauve flowers last from June to September and in autumn, the pointed, mid-green leaves, turn dusky red. On alkaline soils the flowers may become pink. This compact, deciduous hydrangea is perfect for small gardens in sun or partial shade. Hydrangeas give their best blue flowers on acidic soils with a p
H 5.5. When grown on neutral soil, (with a p
H 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 p
H does not creep above 6.5. To lower the p
H on a neutral soil, you can treat it annually with aluminium salts. It's much harder however to alter the p
H of limey (alkaline) soil, so it's much easier to grow white or pink hydrangeas instead.Garden care: 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.

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