Charles says you don't have to have a garden to grow pea tips, but can plant them in a deep pot, spacing them slightly closer and they'll still produce well.
From the telegraph.co.uk
Now is the time to plant seeds for many flowers directly into the garden including cornflower, nasturtium, nigella, poppy, portulaca and sweet pea.
From the sacbee.com
When you see the yellow forsythia shrubs blooming in your neighborhood this means it might be time to plant pea seeds and add bare root roses, strawberries and raspberries to the garden.