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!

It is important that enough water will be available for the plant in greenhouses and tunnels to take up the fertilizers. Drought in this period will damage the flower harvest for the next year. An active soil life is very important; moist soil and a correct organic matter level are very important to improve the taking in of the above mentioned fertilizers.

Cutting of the crop

The period after flowering can be seen as part of the crop. A strong plant is better at withstanding the winter and it grows easier in the spring. With peonies it is customary to spare the foliage until at least mid-September. The continue growing of green parts means more growth. Even a crop going on dormancy ensures growth of the tuber. The fact is, the strongest growth of underground parts of the peony occurs during the withering of the foliage.

Leaf nematodes and rose buds

To limit leaf nematodes and rose buds for the coming harvest season, you can consider to cut off the foliage in early September. Leaf nematodes hibernate in, amongst other things, dead leaves on the ground and in the young growth points of the peony roots. Therefore, cut off the foliage relatively early in autumn and remove the foliage residues. Only do this with dry weather.

Botrytis control

The growing season has just passed, but preparations are already necessary to regain a good crop in the coming spring. Botrytis control, which will start in late summer, is an important part of that.

Click here for all the information regarding Botrytis control.

Weeds

It is wise to mow the foliage when it isn’t possible to keep the plot free of weeds. Especially if it already largely has died back. Of course it makes no sense to grow a crop if it already has been overgrown by weeds.

Leaf nematodes can infect the plot by hitchhiking on weeds(seeds).

Click here for all the information regarding Weeds.

Yellow Fruit tree Cicada

In the greenhouse, the number of peony crops with Yellow Fruit tree Cicadas rises. Because these Cicadas emerge only after flowering, they are not harmful in small numbers. Most Cicadas can be seen in August. In September the Cicada lays eggs. Normally, control of this problem takes place in August, but please note that you probably never get rid of this plague at once.

KaRo

Soil with organic matter

Because many stems have been cut and the remaining crop is mown and maybe even removed from the plot, you can practically call it robbery that takes place on the soil every year. This can be corrected through a so-called custom compost mixture. This mixture is determined by the SoilBalanceAnalysis. Based on the occupation of cations on the soil complex.

Click here for all information regarding Karo.

Green Works Care™

Green Works developed an effective and environmentally friendly method for the control of nematodes in peonies. In collaboration with institutes at home and abroad, we introduce Green Works Care™ for peonies. This revolutionary treatment is only available through Green Works. The research took a couple of years and the treatment has been extensively tested in that period. The result is an attractive alternative to the standard water treatment. ‘Green Works Care™ for peonies’ even has big advantages over the traditional water treatment.

Click here for all information regarding Green Works Care™.

Peonies after receipt; save/store by the grower

Planting peonies is best done in autumn. In cool periods (autumn) the plant roots more and that causes the plant to make more foliage in the spring. Therefore try to plant the peonies before the first frost. Peonies you plant in autumn should not be cooled during storage.

Click here for more information.

New planting

Preparation:

  • Take a soil balance analysis to evaluate the addition of organic matter and/or minerals. Also take a nematode sample;
  • Very good drainage of soil;
  • Free of root weeds;
  • Good soil structure;
  • Previous cropping in connection with nematode infection;
  • Timely herbicide spray to kill weeds. When using herbicides with contact action, combine with Herbi-Safe for better absorption and more rapid degradation in the soil.
  • For orientation go to the auction and visit the fields where peonies are grown for the roots (purchase for a longer time).

Click here for all information regarding New planting.

When planting peonies in autumn 2020; 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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