PDC LESSON 3.7 SEEDS – BIENNIALS – PERINNIALS – LEGUMES
PERMACULTUE COURSE AGRO-ECONOMY
PDC LESSON
3.7 SEEDS – BIENNIALS – PERINNIALS – LEGUMES
Biennials - Perennials - Legumes
are plants
that produce vegetative growth during the first growing season, slow down
through a period of cold weather then go to seed the second growing season, and
then die.
Root crops
will take two
calendar years for seed production. Onions, carrots, and celeriac seed can be
obtained by root to seed production. Simply plant the sprouting end of a carrot
or onion and allow it to grow and form the seed head then save for seed saving.
This will take only half the time as in seed-to-seed production.
Perennials
are the types
of plants that can survive on neglect. This is one of the main reasons why many
different varieties have been adapted into permaculture gardens.
Root crops
such as sweet
potatoes, taro, arrowroot, yam, ginger, turmeric, and water chestnuts, all die
back in the cooler weather only to re-shoot again when the weather warms up.
Leaf crops
such as
aibika, New Zealand spinach and kang kong will die back with the cooler weather
and re-shoot again in spring/ summer.
Legumes
such as the seven-year
bean varieties (of which there are many) yam bean, Madagascar bean, lab lab and
the scarlet runner bean all die back in the cooler weather only to regrow again
in spring.
Other plants can be divided by crowns
such as lemon
grass, rhubarb, asparagus, yakon, and divider leeks.
All these plants will keep on growing and producing more planting material by vegetative propagation.
Text from the roots, Elisabeth Ferkonia (Aus.) PDC studied with Bill Mollison,
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