No tulips do not need to be covered in a frost. They are very hearty plants and actually last longer in cooler temperatures.
If both cars were already covered in frost, neither would frost over first at night.
Perennials that are sensitive to frost should be covered to protect them from freezing temperatures. Examples include tender perennials like begonias, impatiens, and fuchsias. Covering them with a fabric or light sheet can provide insulation and protect them from damage.
Tulips bloom in early spring usually before the trees get leaves. This way, the tulips have sunlight when the flowers need it.
It is honestly preference, you can store it covered in a pantry, or covered in a fridge; i do not like frozen brownies.
Yes. They are a plant.
Quite possibly they are planted too deep or need to be divided.
No, they need water.
no, they need water
Yes, you can plant annuals before the last expected frost date if you cover them when frost is a threat.
The snow acts as an insulation between the plant and the frost.
The surface of Io is covered in primarily sulphur, with areas of sulphur dioxide frost.
Salt kills plants so you need to give fresh water to your tulips.