In this newsletter you will find all information that is currently relevant to the crop of peonies. We trust that this information will help you in achieving a successful crop. Feel free to contact us for questions and remarks!

In this newsletter you will find all information that is currently relevant to the crop of peonies. We trust that this information will be helpful in achieving a successful crop. Feel free to contact us when you have questions or comments!

Peony fields in Limburg, the Netherlands

 

Peony cultivation is not done after harvest of flowers!

Fertilization

After flowering, fertilization needs to be aimed on the vegetative growth of the plant, the leaves need to grow and fully mature. The crop which is now on the plant will form the basis of the flower production in the following year. The formation of the flowers will be in August and September. Take soil/leaf samples regularly and in fixed time periods, so that you will get a better view of the needs of the plant.

Click here for all the information regarding Fertilization.

DCM

Organic fertilizers after flowering

On sandy soils outside it is wise to scatter an extra 300 kg Mix5. Which compensates a part of the leaching.

After flowering you can administer the fertilizers in various ways. DCM provides slow-acting organic-mineral fertilizers which fit perfectly in the peony cultivation.

Click here for all the information from DCM.

KaRo

Leaf nutrition instead of spreading after the cut

The peonies have been cut, the growing season has come to an end. High time to pay attention to the restoration and filling of the rhizome for next season’s production. The trick here is not to generate much growth. The idea is to keep the crop green for assimilation and ultimately to transport as many minerals and assimilates from the crop to the rhizome as possible. Potassium and trace elements play an important role.

Click here for all information from KaRo.

Botrytis control

Botrytis control in peonies is a long-term story. Especially when there is no protection after flowering, Botrytis continues to cause major problems. Therefore, spray against Botrytis to ensure that damage from cutting does not causes an infection. When spraying against Botrytis, add some bitter salt to harden the crop somewhat.

Click here for all the information regarding Botrytis control.

Weed control

Weed control in perennials is more a matter of discipline than choice of means. In weed control, almost only the organic matter content is important. A very heavy clay soil with little humus is therefore simply light soil for weed control. The effect of a product without damage is determined by the narrow line between effect and damage.

Click here for all the information regarding Weed control.

Xanthomonas

A quite new infestation in peonies is known as Xanthomonas. Little is known about this bacteria. Especially little is known concerning how this bacteria multiplies and spreads through the plant and how it survives between seasons.

Click here for all the information regarding Xanthomonas.

Leaf spot diseases

Leaf spot diseases causes more and more problems in the crop of peonies. Leaf spot fungi and Botrytis create different kinds of leaf spots on the peony. Both fungi flourishes under warm and humid circumstances and they survive on crop residues.

Click here for all the information regarding Leaf spot diseases.

Leatherjackets

Adult crane flies suck just a little bit of nectar. But the larvae of the crane fly, also known as leatherjackets, are much more voracious. They are relatively large, soft and fat and they eat of various plants. Including the stems of the peony just below the ground.

Click here for all the information regarding Leatherjackets.

New planting

With information regarding the Green Works Peony Quality Seal, the special Green Works Care™ treatment, time of planting and planting depth.

Click here for all the information regarding New planting.

When planting peonies; the benefits of the investing in 3-5 eyes compared to 2-3 eyes:

Number of stems/flowers per plant (2-3 or 3-5 eyes):

Variety Year Amount of stems Amount of stems
    2-3 eyes 3-5 eyes
Sarah Bernhardt  planting in autumn: 2020     
  spring                      2021 0 0
  spring                      2022 0 3
  spring                      2023 4 7
  spring                      2024 6 8
  spring                      2025 7 9
  spring                      2026 8 9
  spring                      2027 8 9
    33 45

Have a look at our product pages for more information regarding our cut flowerspot plants and peonies.

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