Propagating Tasks in April
Like last month, this is another busy month, with many varieties of plants needing propagating.
Having said that, err on the side of safety, and keep your seedlings in a frost free environment if weather predictions are for continuous cold / freezing weather.
Keep a piece of agri-fleece at hand to throw over your seedlings in the coldframe if an overnight frost is forecast.
Week 14 - 2nd Apr. to 8th Apr.
Sow Brachycome, Centaurea, Cerinthe, Chrysanthemum annuals, Coleus, Coriander, Cosmos, Dianthus chinensis, Godetia, Gunnera, Helleborus, Helianthus, Helleborus, Iberis, Impatiens balsamina, Lathyrus / Sweet Peas, Loosestrife, Lunaria, Nemophila, Nerium, Onions (spring), Phlox paniculata,and Sidalcea and Zinnia.
Prick out Alyssum, Antirrhinum, Brussels Sprouts, Cabbage (summer), Calabrese, Cauliflower (summer) Celery, Convolvulus, Hebe, Melon, Mimosa, Nicotiana, Pansy, Petunia, Papaver / Poppy, Portulaca, Potentilla, Schizanthus and Verbena if large enough to handle.
Propagate Suckers from various shrubs / trees.
Harden off Lobelia.
Commence placing Chrysanthemum cuttings in coldframe to harden off.
Week 15 - 9th Apr. to 15th Apr.
Sow Albizia, Briza, Calceolaria, Calendula, Canterbury Bells, Clarkia, Coriander, Clerodendrum,Cytisus, Gaillardia, Gourds, Gypsophila, Kniphofia, Mimulus, Nigella, Parsley, Potato, Reseda, Rhubarb, Squash and Verbascum seeds.
Prick out Ageratum, African Marigolds, Actinidia, Agrostemma, Anomatheca, Aubretia, Auricula, Basil, Broad beans, Brachycome, Callistephus, Celery, Crepsis, Eschscholtzia, French Marigolds, Impatiens balsamina, Laurentia, Leeks, Mesembryanthemum, Nemesia, Nolana, Physostegia, Rudbeckia, Tagetes and Tropaeolum / Nasturtium seedlings if large enough to handle.
Pot up Sweet potato slips immediately on receipt.
Remove growing tip from Petunias.
Sever layered Blackberry, Loganberry and Tayberry cuttings.
If weather conditions are suitable, divide established Aquilegia plants and replant the divisions immediately.
Week 16 - 16th Apr. to 22nd Apr.
Prick out Aquilegia, Begonia, Calendula, Canterbury Bells, Centaurea, Cerinthe, Chilli, Cosmos, Dianthus chinensis, Godetia, Helianthus, Iberis, Mimulus, Nemophila, Orache, Phlox drummondii, Reseda, Watermelon, and Zinnia if large enough to handle.
Week 17 - 23rd Apr. to 29th Apr.
Pot up Dahlia cuttings