Growing Potted Hydrangeas: {Tip Sheet}

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Digging In Soil

  • Soil: Mixture of two parts loam to one each of sand, leaf mold, dried cow manure; add a teaspoon of bone meal to each pot.
  • Water: Potted hydrangeas demand a lot of water; soak pots twice a day in growing season. To produce blue flowers, water occasionally with a solution of aluminum sulphate, 3 ounces to a gallon.
  • Pests: Red spider may cause leaf tips to brown. Wash foliage with a strong spray of water.
  • Heat: During growing season a temperature around 65° is best–not below 60°. While plant is dormant, place in a cold but frost free place.
  • Light: Indoors a sunny window suits it. Outdoors in summer it prefers open shade or partial sun.
  • Propagation: Take cuttings in February, root in moist sand or vermiculite.

Tips: After blooming, cut back flower stalks to two joints, re-pot, place outdoors when frosts have passed, feed with liquid fertilizer occasionally when roots have filled pot.

Overwintering Indoors: Store plant nearly dry in a cold cellar for the winter; bring into warmer place in January and begin watering.

Source: The WorkBasket (1954)

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4 Comments to “Growing Potted Hydrangeas: {Tip Sheet}”
  1. Ernie Salisbury says:

    I have just found your site ,very good.I would like to know if you can a dd fertilizer to potting soil

  2. Julie Orser says:

    We have great success with the Endless Summer variety, here in Houston, with the intense heat. Home Depot has an organic hydrangea/blueberry fertilizer that has turned our hydranges from unhappy to VERY happy. Plants!! Cheers, Julie

  3. mickeyblack says:

    My son bought me a beautiful potted Hydranga plant.
    can it be transplanted outside? My cat will not leave it alone!

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