Peonies for Containers

During these interesting times many of us might be feeling like potted plants, waiting for the day we can stretch out our roots again.

Although we may think our peonies feel the same in pots – container-bound and cramped - peonies actually quite like being in a small environment as long as they are taken good care of.

Container growing is a great way to enjoy the beauty of a garden in a small space.

So what does the ideal potted environment look like for peonies and which ones are best for containers?

Here are a few tips for getting the best out of your potted peonies.

Pot size

Firstly, you’ll want to bear in mind how big your peony will get.

You can do this by checking the height and spread of your chosen variety to make sure there will be space for your peony to spread out in its pot and have enough room to grow on your balcony or patio.

The ideal pot size to start off with is 30-50cm.

As your peony grows you can transfer it to a bigger container which will likely be every 3 to 4 years. If you already have a potted peony that’s outgrowing its pot it will be best to wait until October to transplant it to a bigger one.

Variety

Patio and Intersectional varieties make great container plants. Ones such as Paeonia ‘Oslo’ and ‘Singing in the Rain’ are great.

Here are some more suggestions for peonies perfect for pots (pictured right):

Paeonia ‘Dublin’ (Patio Peony ‘Dublin’)

Single white flowers with a golden centre

H: 50cm S: 30cm

Paeonia ‘Moscow’ (Patio Peony ‘Moscow’)

Sumptuous bright red semi-double flowers with yellow centres

H: 60cm S: 40cm

Paeonia ‘Border Charm’ (Intersectional ‘Itoh’ Peony) (Mid Season Flowering)

Large, lightly scented, pale yellow, semi-double flowers with red centre flares

H: 75cm S: 50cm

Paeonia ‘Bartzella’ AGM (Intersectional ‘Itoh’ Peony) (Fragrant) (Mid Season Flowering)

H: 75cm S: 50cm

Paeonia lactiflora ‘Gay Paree’ AGM (Peony ‘Gay Paree’) (Fragrant) (Mid Season Flowering)

Fabulous single flowers with cerise outer petals. In the centre of these flowers are light pink petaloids with cream edges. A slightly shorter variety

H: 75cm S: 50cm

Paeonia ‘Magical Mystery Tour’ (Intersectional ‘Itoh’ Peony) (Fragrant) (Mid Season Flowering)

Beautiful, semi-double scented pale pink flowers edged in cerise/lilac

H: 75cm S: 50cm

How to pot

  • Make sure the soil and container allows for free draining as peonies don’t like having wet feet
  • Plant the crown no more than 2.5-5cm below the soil
  • Fill with peat-free compost and slow release fertiliser
  • Leave a 2.5cm space from the top/rim of pot to allow space for water
  • Give it a good drink
  • Position in a full sun or part shade location that is sheltered from strong wind

Pointers for Pots

  • Although peonies are tolerant of dry periods, the soil in pots tends to dry out quicker than in the ground, so make sure to water regularly
  • Peonies in pots will need to be fed once a year with a fertiliser such as our Professional Fertiliser
  • Tuber plants like peonies that are grown in containers can be more sensitive to freezing than when they are in the ground so it may be best to bring them indoors for winter, positioning them in a cool area

 

But you won’t have to worry about that last point now with Spring upon us.

Enjoy your potted peonies and let us know how yours do!

Unusual, rare and highly collectable. Bartzella has large double intense sulphur yellow flower. Lightly fragrant. Bartzella has been awarded the RHS Award of Garden Merit.

H: 75cm S: 50cm

Paeonia lactiflora ‘Gay Paree’ AGM (Peony ‘Gay Paree’) (Fragrant) (Mid Season Flowering)

Fabulous single flowers with cerise outer petals. In the centre of these flowers are light pink petaloids with cream edges. A slightly shorter variety

H: 75cm S: 50cm

Paeonia ‘Magical Mystery Tour’ (Intersectional ‘Itoh’ Peony) (Fragrant) (Mid Season Flowering)

Beautiful, semi-double scented pale pink flowers edged in cerise/lilac

H: 75cm S: 50cm

How to pot

  • Make sure the soil and container allows for free draining as peonies don’t like having wet feet
  • Plant the crown no more than 2.5-5cm below the soil
  • Fill with peat-free compost and slow release fertiliser
  • Leave a 2.5cm space from the top/rim of pot to allow space for water
  • Give it a good drink
  • Position in a full sun or part shade location that is sheltered from strong wind

Why peonies think Autumn is cool

Autumn. What does it conjure up in your mind?

I’m thinking snuggling with the dog by the fire with a good book and hot choccie.

Wrapping up warmly for brisk walks in the crisp morning air.

Guilt-free lie-ins on weekends.

For some of us it’s not so rosy. When the cold starts setting in we may feel like death warmed up and struggle to extract ourselves from the comforting warmth of our bed.

So we may be inclined to think that our peonies also don’t like the cold weather. We may even think they're dead!

Never fear although winter is near. As mentioned last week, autumn is actually a good time for peonies. They quite enjoy the cold and the opportunity to hibernate. They need these conditions to work on making a fresh batch of buds for you to enjoy in the spring.

So how do we treat our slumbering plant babies?

  • Allow foliage to remain until touched by frost. If you remove it sooner it will affect the plants ability to make and store food reserves needed for growth and flowering in spring.
  • Cut herbaceous foliage back to an inch or 2 above the surface and Itoh to about 4 inches, being careful not to damage the buds at ground level
  • Dispose of the foliage carefully, even burning it, to prevent peony wilt in the spring
  • Make sure your soil is well drained. This is very important no matter what type of soil you have, especially in winter.

 

Although peonies are happy in any good quality soil, at this time of year you might want to use a well-balanced fertiliser such as bone meal or our own Summer Rejuvenator

Some have come to believe that it isn’t a good idea to move peonies. On the contrary! Peonies are only too happy to have a change of scenery. And now is the perfect time to divide and move them!

Here's what to do:

  • Remove foliage (as mentioned above) and lift clump out keeping as many roots in tact as possible
  • Gently wash soil off the roots and growth buds
  • Remove sections of the crown (from which the buds grow) each with at least 3 dormant growth buds and some roots attached
  • Replant with buds no more than an inch below the soil
  • Water

 

If you are just starting out on your peony journey now is the time to purchase your potted or bare-root peonies online and do as follows:

  • If unable to plant bare roots straight away, you can keep them in their shipping box in a cool, dry location for a few days if necessary
  • For potted peonies it is best to remove from all packaging and plant as soon as possible.
  • Pick a sunny, well-drained spot that has at least a square metre away from other plants otherwise they will be competing for moisture and nutrients
  • Dig hole the same depth as the root ball and twice as wide
  • Pat soil down gently when covering your peony, making sure the red buds are no more than 1 inch below the soil to encourage flowering
  • Water after planting to settle the soil and in dry spells. Drip irrigation is preferred to reduce the chance of fungal diseases

 

There is much more to say on this subject, which we will share in future posts but this should get you off to a good start.

In the meantime, please feel free to ask us anything. We love hearing from you!