May

Cut back herbaceous perennials which are entering their dormant winter phase.
Purchase Christmas Lily bulbs and plant them without delay.
Plant out cineraria seedlings for brilliant mid to late winter colour.
Plant citrus trees. New season citrus plants are in nurseries now.
Plant peas, oats, lupins or broad beans as a green manure crop in the vegetable  garden.
Plant conifers.
Divide hostas.
Plant out strawberry beds.
Lift and divide perennials that require attention.
Plant tulip bulbs. Hyacinths can also be planted in May.
Collect oak leaves for compost and leaf mould.
Fertilise jonquils in bud.
Plant seedlings of pansies, polyanthus, primroses and primulas.
Go walking in the early morning to see mushrooms and fairy rings. Look under oak trees especially for the large red and white spotted Fly Agaric, but remember they are very poisonous!
Prepare beds for winter rose planting.
Protect emerging orchid flower spikes from snails and millipedes.
Add foliage from finished vegetable crops to the compost bin. Dig in bean plants to increase nitrogen in the soil.
Clear autumn leaves from gutters.
Make rose hip jam or syrup.
Move indoor plants away from heaters and ducted heating vents.
Construct an arbour for climbing roses.
Prune Callistemons lightly.
Cut tall stems of Cannas off at ground level.
Liquid feed seedling annuals before the cold really sets in.
Reduce watering and feeding of chrysanthemums when buds are showing colour.
Prune back Plectranthus ecklonii hard as flowering finishes.
Move plants that are growing in the wrong spot.
Plant lilium bulbs.
Protect flowering tree dahlias from wind damage.
Cut back the spent stems of Japanese windflowers and asters.
Disbud camellias to achieve fewer but better quality blooms.
Fertilise cyclamen plants.
Begin applying bluing powder (aluminium sulphate) to hydrangeas to promote true blue flowers.


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  http://www.global-garden.com.au/

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