Annuals And Biennials Flashcards
Easiest annuals to grow from seed are those that
Sow themselves
Annuals that sow themselves (a,c)
Alyssum
Calendula
Annuals that sow themselves (c,l)
Cosmos
Larkspur
Annuals that sow themselves (n,n)
Nicotiana
Nigella
Annuals that sow themselves
Poppies
All self-sowers will come back following year as long as you
Leave seed heads and seeds fall in ground
Second easiest are those whose seed is
Large
Large seed flowers (m,n)
Marigold
Nasturtium
Large seed flowers (s,z)
Sunflowers
Zinnias
Large seed flowers (ap, p)
Annual phlox
Portulaca
Portulaca aka
Moss rose
Larkspur, nigella, poppies are
Cold-weather germinators
Sow cold-weather germinators as soon as
Ground can be worked
If you don’t only want flowers to flower late summer _
Plant indoors in fall
If you don’t want flowers to flower late in summer _
Plant indoors in fall
Seeds contain _ to let them know when it is time to germinate
Sensors
Among sensors is
Phytochrome
Phytochrome is a pigment that is sensitive to
Certain wavelengths of red light
If Phytochrome cannot sense light
Will not germinate
If seed has warmth, moisture, and oxygen, the change in Phytochrome
Breaks seeds dormancy and allows germination