Hi Jessie you probably don't even need to use the plastic unless your place is really dry. They are basically an easy care
plant. If you do use the plastic make sure you remove it when the
seeds sprout. Then just keep the soil a little on the moist side and you will be fine.
Hey precious,
Glad to here from across the pond. Welcome to the forum. I had some bloom inside this year while they were waiting to go to a friends garden. I was suprised to see that but it was entertaining to see them do that. Have you noticed that the stems are much thinner and the leaves are fatter when they are kept indoors? At least that's what I noticed between my overwintered ones outside and the ones I started inside. Of course once they went outside they began changing shape. I'm thinking some of it is the wind and then some of it is that I have a film on my windows that cuts down the amount of sun somewhat. It sure is interesting to see a
plant respond to it's environment.