Posted: 01/09/2014 at 09:39
Most of those mentioned will germinate out of doors in a seed bed, but you'll get more reliable results if you start them off indoors in seed trays, and you'll be less at the mercy of our variable seasons.
You might be able to find space for seed trays somewhere in the house (conservatory? windowsill?) or in a garage or shed if you can arrange a place with enough light. Once the seeds are germinated, you should be able to plant them outdoors or tranfer them to pots or modules until they get a bit bigger. These would probably be OK in a sheltered corner of the garden. The seed packets will give you more detail on when and how to plant. If you do need a dedicated space, those plastic mini-greenhouse are probably the cheapest way. Or find a friend with a greenhouse?
Don't be afraid to have a fallback plan. For a start, remember that you can buy trays of seedlings ready to plant out. This year my sweet pea seeds didn't germinate so I bought a tray of a dozen little plants from the local shop, which romped away and gave a lovely display. They're still home grown, all you're doing is let someone start them off for you.
And if even that fails, a few bunches of cut flowers from your local market or supermarket can always be bought at the last minute to top up. Another way of cheating is to keep an eye on other people's gardens - I've just let a neighbour cut some of my blue hydrangeas for wedding decorations in the church.
And please do let us know how it all goes!