Growing Hydrangeas in Pots

My soil is not suited to growing hydrangeas – can I plant them in containers?

Yes, growing Hydrangeas in pots is a great way to get the exact color of flower that you want.

My soil is not suited to growing hydrangeas – can I plant them in containers?

What Size Container For Hydrangeas?

Hydrangeas grow extremely well in containers – as long as their particular soil acidity needs are met.

Their root system develops rather quickly, so it’s important to use a pot that’s not too small.

Use fairly large containers at least 18 inches deep. Large, half-barrels are ideal.

Does The Hydrangea Container Need Drainage?

Yes, as with any potted plant, you will need to ensure that any excess water can run out of the pot, generally by drainage or weep holes in the bottom of the pot.

If the excess water is not able to freely drain away, the roots are in great danger of rotting.

What Soil Will I Need in The Pot?

If you want to ensure blue shades, fill the containers with half soil and half rich, acid-based compost, and apply an acidifier – such as aluminium sulphate – regularly from the beginning of the growing season.

you can grow theses lace cap hydrangea in pots

Always make sure to leave a slight gap between the top level of the soil and the top of the container rim, this will prevent any water from spilling out the top while you are watering.

If you want the flowers to be produced in pink shades, use half ordinary compost and half soil.

Where Should I Position The Hydrangea Pot?

Most hydrangea cultivars prefer more sun in the morning, and some shade in the afternoon. So, if you’re able to position it on the side of your property that suits them then your plants should be happy.

When Would I Need To Repot My Hydrangeas?

You should repot the hydrangea every year or two. The larger varieties may need more frequent repotting as well as a larger pot to begin with.

There are some varieties that are not suited to growing in pots, for instance, Panicle, which can reach a height of 25 feet! A little too large for potting I’d say!

Hydrangeas Pests and Diseases

Hydrangeas in pots can be more susceptible to pests than specimens in the ground.

They sometimes suffer from scale insects, wood mites, slugs, aphids, and beetles. Keeping them well watered can help with keeping some of these pests at bay, particularly spider mites.

Potted Hydrangea Care

Check the pH and add a little lime, if necessary. You will thus be able to have both blue and pink hydrangea flowers, side by side, which is not always possible out in the garden.

The hydrangea blooms make excellent cut flowers, and with the right care, will last for up to a couple of weeks in a vase.

As the plants have a limited amount of soil to grow in, and as they are such demanding feeders, you should feed them regularly with liquid fertilizer during the growing season. If your hydrangeas are not blooming, then have a look at our page to help identify the reason why that may be.

Also, every spring you should remove the first inch or so of soil from the top of the containers and mulch with fresh compost. Always make sure that the containers are kept well watered, and don’t let the plants dry out.

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