A

[ablo]

B

[Kutittaa]

Where I was in Oulu there was a garden community near Nallikari where people could grow things. It was a huge plot of land with many people gardening on it. The soil looked lovely and the area was perfect for growing. I stopped in just once to buy vegies from one of the people selling there.

Sorry I couldn't give you much information but I don't know where you live either because you haven't mentioned it.

[inkku]

Garden allotments (viljelypalsta in Finnish) are much in demand. The are managed by the local authorities, in this case the city of Espoo
http://english.espoo.fi/en-US


This is the contact they give:
Tekninen keskus/ katu- ja vihertuotanto, luonnonhoitoyksikkö
Tuomarilantie 19
Postiosoite: 02070 ESPOON KAUPUNKI
PL 4520

Tel 09 8163 6144

However, you could also try

Technical Services Department´s customer services
planning, construction and maintenance of streets and green areas as well as parking control

Phone: 09 8162 5000
Open: Mon, Wed-Fri 8.00-15.30, Tue 10-15.30
Street address: Virastopiha 2 C (office building 3), 1 th floor, Espoon keskus