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General Information:
Early March is a good time to get all your old seed packets out and put them into groups of monthly planting, tie them with an elastic band. Any seeds which are very old should be given a last fling in some seedling compost with a good label, then if they dont germinate you will know why.
As days are slowly becoming warmer ventilate the greenhouse, gradually opening more windows during the day, remember to shut them at night. If you want your bedding plants to really take off then turn the heating up at night. If you have bubblewrap up you might consider taking it out at the end of the month. Dont forget to water your plants as they can dry out quite quickly especially if they are in clay pots.
If you have been infested with bugs or mould (bugs = usually bought in from outside, a nice place for them to overwinter too. mould = too much dampness or water and not enough ventilation.) over the winter it would be advisable to give your greenhouse a thorough clean and sterilisation. Choose a warm day when your plants can go outside. This site rarely suggests using chemicals of any type but there are always some instances where it really is a last resort, better wherever possible to use natural remedies, less harm to you and the environment in which you are spending your time.
FLOWERS General Info Prune back any growth which is making the plant look leggy, it will soon recover with lots of new shoots and flowers. Start to feed plants.
  Cuttings Carnations, chrysanthemum.
  Seeds to Sow Cape Primrose, morning glory, bizzie lizzies, gloxinia, pelargonium and any other bedding plants. Read all your packets.
  Time to Plant Hippeastrum. Arum lilies should be potted up now, keep them moist. Begonia tubers will be sprouting their new shoots, plant them in pots.
FRUIT General Info If you have your heating on at a good level your grapes will start to grow.
  Seeds to Sow Melon.
  Time to Plant Peaches, nectarines and grape vines.
VEGETABLES General Info Pot up and force chicory.
  Seeds to Sow Celery, cucumber, leeks, aubergines, cauliflower, peppers, tomatoes and lettuce. Peas can either be sown directly outside or if you have a slug problem start them off in the greenhouse, give them a really good start in life!
  Time to Plant Mushroom spawn.
GENERAL JOBS   Water only those pots that need it and regularily check for dead leaves. Dont get the leaves wet yet.
    Repot those plants that look as if the soil needs refreshing or that the plant needs a new pot. If the plant looks happy just top dress with some new soil. Give them a lift with some organic plant food or seeweed feed.
    If you have any houseplants in your greenhouse, go to the Houseplant section for more advice.
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