B and T World Seeds' reference number:
|Crocus vernus Haarlem Gem spring flg. sales history
| Parts of Crocus vernus Haarlem Gem spring flg. are considered toxic.
Crocus vernus Haarlem Gem spring flg.
is included in the following
B and T World Seeds flowering plant categories.
|6||: Bulbous and Rhizomatous Plant Seed List|
|9||: Alpine and Rock Garden Seed List (Hardy and Tender)|
|43||: Herbaceous Border Plant Seed List|
|720||: Fire Resistant Plants|
|Different classes of resistance: some grow back, some don't burn, a few have highly inflammable leaves that leave the rest of the plant intact, some trees don't have lower branches.|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
require that their growing medium remains moist until germination.|
Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet,
the seeds may not get the oxygen they require.
Crocus vernus Haarlem Gem spring flg. seeds will usually germinate in 30-180 days, even under good conditions germination may be erratic.