What kind of seeds do youwant to sow?

if you want to sell Begonias, geraniums, petunias, nicotiana etc, you should have sown back in Feb, most other seeds are sown in march, fast growers such as stocks, marigolds, cosmos etc can be sown now.

It depends when the fete is, most packets will tell you when to plant and when they should flower, it depends also of course on the weather and if you have a greenhouse and propagator.....