On and about Bonsai

tisdag 21 juli 2015

Repotting an Alnus

This is a tree I got from the forest about 3 years ago. Its an Alnus Glutinosa, Common Alder or Klibbal in  Swedish.
This kind of tree grows very much and likes to shoot out new branches from places you dont want it to grow new branches from. But you can prune it back. Hard.

I choped it back from 2 meterns down to 45 cm of height. I repoted it 2 years ago. The soil became very dry this year. The surface was repeling all of the water. All of the water ran down the sides and it accumulated it on the bottom of the pot. This is why all of the root development was at the bottom, as you can see.

This is because of the chicken pellets manure I use. When it breaks down, it cloggs the good drainage properties of the bonsai soil and prevents the water from reach the inside of the pot.

So I repoted it. I cut 50 persent of the size of the root mass (or what was left of it) But it was time for it to be planted in its bonsai training pot, with better bonsai soil. I didn´t performed any pruning of the leafes and branches this time.

Carmona Retusa

I Recently boughted this Carmona Retusa or Fukien Tee from a local store for 199 swedish krona. Its about 23 cm including pot.

 This is a flowering variety that is excelent for new begginers, provided that you replant them, as I will show now.

It was very expensive for such a poor quality and size but I wanted to try to have a winter indoor tree ( In Sweden its to cold outside during winter for more tropical plants. The temperature can drop down to -23 degree celsius. But you can keep tropical trees indoor.

The soil was of poor quality and drainage. There was hardly any root development and the tree wasn´t attached to the pot.

I washed out all the "soil" it was in but did not pruned back the little amount of roots the tree even then have developed.

I planted it in my bonsai-soil with better drainage and with slow releasing fertilizer, in a bigger pot.

I would have planted it in a bigger and deeper pot, if I wanted to make the tree bigger but a as I said, i want to keep it indoor during autumn and winter. I also changed the angle of it, to better secure it to the pot, to give the rotts a better chance to grow undisturbed.