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Growing Asparagus

Jan F M A M J J A S O N Dec
        P P P          

(Best months for growing Asparagus in Australia - tropical regions)

P = Plant crowns

  • Easy to grow. Plant as crowns. Best planted at soil temperatures between 16°C and 30°C. (Show °F/in)
  • Space plants: 20 - 40 cm apart
  • Harvest in 2-3 years. Plant 'crowns' to harvest earlier .
  • Compatible with (can grow beside): Parsley, Basil, Nasturtiums, Lettuce
  • Avoid growing close to: Garlic, Onions, and root vegetables
  • Seedlings (approx 6cm/3in)
    Seedlings (approx 6cm/3in)

Plant crowns (roots) 20-40cm apart and a few cm (1 inch) deep in well manured soil. The asparagus shoots grow in spring. Harvest the shoots which are bigger than 1-2cm/half-inch in diameter. Leave the rest to grow into the leafy ferns (1.5m/5-6ft tall) which will feed the crowns to give a crop next year. In autumn the ferns will be covered in bright red poisonous berries. Leave the ferns to die down in autumn, then trim off the dead stalks and pile on plenty of rotted manure/compost to give the roots plenty of food to produce new stems in spring.

Harvest by cutting off the stalk, close to the ground. From the third year you can get an additional crop by letting the first lot of ferns grow, then bending down the stalks to break them. A second crop of shoots will grow and can be harvested. Leave subsequent shoots to grow on to ferns. Asparagus does not like continuously wet and warm soil. It grows better where there is a cool or frosty season.

Culinary hints - cooking and eating Asparagus

Steaming is traditional, then coating with melted butter or hollandaise sauce.
Alternatively break in short lengths, and cook quickly in hot oil in a wok and sprinkle with soy sauce or balsamic vinegar.

NOTE: The asparagus berries are poisonous. Only the young shoots are edible.

Your comments and tips

04 May 18, (Australia - temperate climate)
wouldnt it be dangerous to grow asparagus in your garden with young children likely to eat the berries?
07 May 18, Mike (Australia - sub-tropical climate)
As an adult you could tell them NOT TO EAT THEM.
01 May 18, Cheryl (Australia - temperate climate)
I am wanting to relocate some Asparagus plants when is the best time please
04 May 18, Mike (Australia - sub-tropical climate)
I want to relocate 3 of mine. I have read they don't like it and you might miss a season's crop. Also if a few years old they may be quite large as in 450-700mm deep. Best time would be in mid winter probably.
23 Apr 18, Tony (Australia - temperate climate)
Hi all, our asparagus ferns are still green.We're in Gisborne Vic.Should we wait till they turn completely brown or can we trim them off now.Will it make any difference to the crowns if cut them now while they're still green .Thanks Tony
24 Apr 18, Mike (Australia - sub-tropical climate)
I'm no expert - I have been growing them for 3 yrs. The new spears shoot in early Spring. So do not trim them now. I made the mistake of cutting them in late July last year and I had a very poor crop. My advise is to water them until the end of this month and then no watering. Let the plant die off. Then in late August cut the dead stalks off and put on the composted manure or just some good compost.
08 Apr 18, Julie Fielder (Australia - temperate climate)
Where in Perth can I buy seedlings or plants to grow Asparagus please?
09 Apr 18, Mike (Australia - sub-tropical climate)
Try the internet, ask around at nurseries or Bunnings.
10 Apr 18, Mike (Australia - sub-tropical climate)
Crowns/plants don't usually become available until mid/late winter.
21 Feb 18, Sandy (Australia - temperate climate)
Just bought a property with what was told is asparagras. seems to be all fern its Febuary. From what i hv read in previous posts you let the fern dye down & fertilize but when does it come back to harvest ?
Showing 1 - 10 of 188 comments

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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