Posted: 01/12/2012 at 11:12
Hello, I agree they are too small to go out now, they are hardy so should be fine keeping them in a cold frame and planting out next year.
I love wallflowers and grow mine from seed and had surprising results. I sowed some Cloth of Gold type in February this year for flowers next year,however they grew into very bushy large plants and flowered this year! If you have the time/space I would recommend growing from seed. Very easy to grow and you get loads of plants for under £2.
I would prick out the growing tips of your plants to encourge side shoots