Arctic-Alpine Botanic Garden
The season in the Botanic Garden is usually from end of May until mid October. From May 15 until July 27, the sun is always above the horizon in Tromsø. This period of midnight sun helps the plants grow, even though it is cold and the growing season is short. It adds an average of 200 hours of sunshine each month in May, June, and July. From November 21 until January 17, the sun never rises. Snow covers the ground from October or November on and stays until April starts. Snow then melts slowly and the ground will usually be bare around mid May at sea level while snow stays longer at higher altitudes.