HOW TO GROW PLANTS IN CONTAINERS

E. Pedersen
Being a nurseryman in the southern part of Denmark I started growing plants in pots about 15 years ago, but at that time only shrubs and climbing plants, and up till the last 5 years only 1 l pots were used, which were dug into the ground.

5 years ago I started cultivating young Conifers (Evergreens) in 8–10 cm pots in order to obtain a better product for transplanting, and this resulted in a larger number of transplanted plants, with better balls, when ready for sale.

The next step was taken 3 years ago, when we began to pot these small plants from 10 cm pots in 2, 3 ½, and 5 l containers.

This development has gone so fast, that in our nursery we now have more than one million plants of Conifers in 2–5 l containers. Together with finer shrubs, climbing plants and young plants, also grown in containers, it amounts to about 2.5 million in all. This amount will, I think, be increased, because we are in want of plants of larger size.

With such an explosive development we have, naturally, got many new experiences, and we are almost daily getting still more, and I must say, that so far we are very contented with the results.

Plants in containers are better when made this way, especially regarding the roots and the rootball. Another important point: these plants are ready for sale 2 years earlier than before. I shall return to this point later.

It is my belief, that in spite of the rather large investments, necessary for this way of cultivation, in the end the plants will turn out not to be more expensive in production. On the contrary, we get a larger percentage of good plants than by the usual transplanting, and last but not least, the dispatch of the plants can be done in a much easier and quicker way.

Most Conifers grown in containers are of, what we in Denmark call, an ordinary market-size, which means for low sorts 20 – 30 – 40 – 60 cm, for the higher sorts 40 – 60 – 80 – 100 cm.

Pedersen, E. (1969). HOW TO GROW PLANTS IN CONTAINERS. Acta Hortic. 15, 61-64
DOI: 10.17660/ActaHortic.1969.15.13
https://doi.org/10.17660/ActaHortic.1969.15.13