Only the flowers of daffodils should be removed after the flowers have faded. The remaining stem and foliage work together to build the plant's strength for next year's blooming. Select a site in full sun and rotate annually to avoid blights and root rot. All snow peas need some form of trellising, even dwarf varieties. Netting or string is sufficient as long as it is securely anchored.
Some gardeners use shrubby branches to make a natural trellis.
To space your seeds evenly when planting, use a piece of netting with 2.5 cm holes. Lay it on top of the soil and place one seed in the middle of each hole. For larger spacing, use fewer holes. Don't throw away hardwood ashes from the fireplace. Added to asparagus and rose beds in early spring, they will prooovide much needed potassium to those potash-hungry plants.