Flower pot effect

The gardener or forester calls the flower pot effect an undesirable growth effect in newly planted flowers, shrubs, shrubs and trees. It occurs when the roots do not penetrate or only slightly penetrate the surrounding (pending) soil outside the planting hole. This is favored by a disproportion between the plant substrate and the surrounding soil conditions. Here, the plant only accepts the supply of nutrients and the loosened soil provided by the planting . The lower quality soil at the site is not rooted through.

If the plant has built up the maximum volume of root mass for its planting hole, it reacts with growth depression and stunted. The insufficient root penetration of the soil also has a negative effect on the stability of the plant.

The flower pot effect in woody plantings can also be caused by deformation of the roots in the frequently used plant containers. Strongly curved or kinked main roots are no longer able to stretch later during later growth. Trees that initially grow, but later prematurely age and become unstable. Similar problems also occur with plantings using the borehole method.

Web links

Individual evidence

↑ Example with Douglas fir
↑ Robert Nörr & Martina Baumer: Planting - a risk for stand stability? The importance of root-conserving planting and its implementation in forestry. Reports from the Bavarian State Institute for Forests and Forestry No. 37. 2002.

swell

Forschungsgesellschaft Landschaftsentwicklung Landschaftsbau e. V. (FLL) (editor): Recommendations for tree planting. Part 1. Planning, planting, maintenance. Bonn, 2005, 67 pp. ISBN 978-3-934484-75-7
Bavarian State Institute for Forests and Forestry (LWF). Leaflet No. 4: “It's all about the roots!” (Pdf) , October 1998

[1] Example with Douglas fir

[2] Robert Nörr & Martina Baumer: Planting - a risk for stand stability? The importance of root-conserving planting and its implementation in forestry. Reports from the Bavarian State Institute for Forests and Forestry No. 37. 2002.