most seed catalogs recommend starting marigold seeds indoors six to eight weeks before your last spring frost. Not only does indoor sowing protect heat-loving marigold seedlings from unexpected ...

Celosia, marigold and Mexican sunflower seeds can be planted indoors in a couple of weeks since they can’t be put out into the garden until a week or two after the frost free date. There are ...

1. Sow French marigolds in April for vibrant summer colour and natural pest control. Start seeds indoors or sow directly into ...