Most cool plant plants come from our own nursery (alpenplanten.be). We grow over 1000 different varieties, each of which has its own requirements for the soil and also for the pot size. Some grow better in a small pot, others in a larger one. There are standard pots or extra deep pots for plants with tap roots or deep-rooted varieties.
Throughout the season, some plants also get a larger pot.
The most used pot sizes from left to right:
P7 (7 by 7 cm)
P9 (9 by 9 cm)
1L (1liter), 1.5L, 2L, 3L, 5L 7.5L, 10L, ....
flower bulbs 10 / +: bulb diameter of at least 10 cm
trees and conifers 30 cm: plant height of 30 cm