Category: Overwintering

Sunlight and Temperatures: Finland versus Europe, part II

In the previous post the amount of sunlight in Finland was compared against some cities in Europe. The sunlight itself is not enough for the plant to thrive….

Sunlight: Finland versus Europe

Idea of my “research” was to compare the conditions to grow bonsai between Finland and the rest of Europe. Potential of solar energy in Finland, the name tells…

Cold frame – Upgrade II

  I needed more space so I decided to redesign the cold frame. The walls should be upright, not anymore under angle so more trees can fit if…

Cold frame for winter hardy species – upgrade

Last year I made the first version of cold frame in the back of our house which didn’t really work well. Reasons are many: the construction, bad insulation…

Temperature monitoring for cold frame

Cold frame winter storage vs. Outdoor

Balcony winter storage – heating and air circulation upgrade

Last winter I put trees into the cupboard and took the task too relaxed way and the result was not near what was needed. The warming in the lowest shelf…

All sensor readings

Balcony heated winter storage vs. Outdoor Cold frame winter storage vs. Outdoor Indoor bonsai shelf

Overwintering of hardy species – wake up

During this week I took all of the trees out of their “sleeping” place. Most of the species are native to Finland so expectations were high that they…

Overwintering for winter hardy species

Though winter hardy species can tolerate cold to some extent, and some of them quite much (pine, spruce), that doesn’t mean they don’t need any protection. Considering our…

Winter storage

Here in Finland the winter is very harsh. Because of that some plants need protection. The native plants are fine if their pots are put on the ground, buried under…