On the other flank of the depressions cold air is moving from high levels at high latitudes and slowly subsiding as it is carried towards the subtropics .
Rosella seedlings are available through local nurseries from September onwards in the subtropics or during the dry season in tropical regions.
The genus is confined to the tropics and subtropics , with 22 species occurring in the Americas and 12 species found in Africa, Madagascar and the Middle East.
Members of the family are unusual aquatic angiosperms growing on rocks in rapids and waterfalls in the world's tropics and subtropics .
It is extensively cultivated in marginal rainfall areas of the tropics and subtropics , and selected varieties are widely grown in temperate climates.
These bats are found in the Old World tropics and subtropics : Central Africa, South Asia, the Malay region, Philippines and Australia.
My favourite subjects are exotic birds, bold flowers and the lush plantlife of the tropics and the subtropics .
Parsley is the one exception to this rule that we should be aware of however, as it's possible to get two years good production from each parsley plant, even in the subtropics .
I am afraid that coming from the subtropics we simply are not prepared for cold weather.
These are in the outer Northern Hemisphere subtropics .