Crocus

Crocus, a bulbous plant of up to ninety varieties. Two-thirds of these are spring bloomers; one-third bloom in the fall.

Do not confuse with:
Autumn crocus (Colchicum), this autumn bloomer has six stamens and the crocus three.

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Crocus 'Zwanenburg', photo: Meneerke bloem - CC BY-SA 4.0
  • Most crocuses are poisonous, including to dogs and cats. The autumn crocus, which resembles a crocus, is very poisonous.

Crocus(Crocus), bulbous plant of up to ninety species. Two-thirds of these are spring bloomers; one-third bloom in the fall. Most varieties of crocuses originate from the countries around the Mediterranean Sea. The spring bloomers bloom in February and grow seven to twelve cm tall.
Crocuses like slightly nutritious, humus-rich, water-permeable soil in a sunny spot. Planting depth is 12.5 cm; spacing is 2.5 cm. Crocuses are hardy.
Crocuses multiply easily and form large groups over the years. Crocuses do not like wet soil.

Bugs

Fungi & diseases

The bulbs turn dark brown and the outer layer sometimes comes off: gray mold (Botrytis ssp.).

In a group of crocuses, some will lag behind in growth and sometimes the bulbs will not come up at all. The underground parts turn brown and the tops of the leaves turn light brown and stick together: grey bulb rot (Rhizoctonia tulipae).

Other

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