Postbus 336
2400 AH
Alphen aan den Rijn
Rijndijk 263a
2394 CE

Tel. +31 (0)71 3415146,
Fax +31 (0)71 3415829

Faster rooting following transplanting

Transplanting is always a shock for a plant. Afterwards, damaged roots will often absorb less moisture for a while. When this happens, the stomata close up and the assimilation process is temporarily shut down. A similar shock occurs after transplanting the rooted cuttings from the cutting bed into pots, and when pricking out rooted cuttings and seedlings. These activities can temporarily retard the growth of the young plants, thus leading to rejects and a lack of uniformity. A treatment with the proper Rhizopon growth regulator helps plants to recover quickly from this shock. Applying growth regulators when transplanting or pricking out encourages new roots to initiate so that all the plants start growing again simultaneously. This results in a faster and more uniform development during the first year following transplanting.

Additional production

The roots of production crops that are transplanted 'bare' (without a root ball) can absorb a growth regulator by being dipped in a Rhizopon solution before planting.  For example, six-month-old rose bushes destined for cut rose production, can be dipped for 5 seconds in a solution of 6-8 tablets of Rhizopon AA/litre of water before being planted in the greenhouse. This treatment hastens root development, which in turn has a beneficial effect on the further development of the plant. If possible, increasing the soil temperature to 15C while maintaining a greenhouse temperature of 18C and a relative humidity of 80% is recommended. This higher temperature enables the plant to make better use of the growth regulating substance that has been applied. If these directions are followed for greenhouse roses, the plants will produce one additional flush of blooms or cutting, even during their first year.

Trees and shrubs

Young street trees and plants destined for planting in forest reserves or public gardens are, for economic reasons, usually delivered without a root ball. Moreover, these plants are often stored for one or more days before being planted at their destination. The resulting root desiccation is followed by insufficient or irregular rooting activity. Allowing these plants to absorb a Rhizopon growth regulating solution prior to planting stimulates the plants to resume their normal rooting activity quickly and uniformly.

The result: less losses and more robust healthy rooted plants.


Export and hydroponics

A plant that has had its root ball cleaned requires more attention than a product that has not undergone this process. Plants destined for export to certain countries, including the United States and Canada or Japan must be delivered with completely clean roots. The same applies to plants that are transplanted to hydroponic systems after having been rooted in a standard substrate mixture. In these cases, too, allowing the plants to absorb a Rhizopon growth regulating solution can help them to recover more quickly from any transplanting shock.

Customised advice

If these methods are of interest, please contact Rhizopon at:

Telephone:        0031 71 3415146

Fax:                  0031 71 3415829

E-mail:              This email address is being protected from spambots. You need JavaScript enabled to view it.

For more information

Also consult the following Page on our website:

Working Rhizopon solutions



Once the tablets have been dissolved in water, their active ingredient breaks down fairly rapidly under the influences of light, temperature and bacteria. For this reason, it is advisable to use a fresh solution each time and to try to avoid making up more than will be used straightaway. Moreover, when making up the solution, a small amount of insoluble sediment always forms but has no affect on the activity of the solution

In general for bare rooted plants we advise a root-dip for 5 seconds in a solution of 6-8 Rhizopon AA tablets per litre water before planting.