Growing Asparagus

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

(Best months for growing Asparagus in New Zealand - cool/mountain 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

Your comments and tips

11 Oct 20, Mike G (Canada - Zone 2b Sub-Arctic climate)
Hi I want to try growing asparagus I live at Wasaga Beach, Ontario Canada what is best method to produce healthy productive plants and our winters are very cold often hitting-40 degrees Celsius what is best method to winterize .
12 Oct 20, Mike G (Canada - Zone 6a Temperate Warm Summer climate)
Yikes, my error our climate is zone 6a. If someone could provide me with the Answers to the above questions I would be appreciative.
29 Oct 20, Anonymous (Australia - sub-tropical climate)
Check the planting time from the planting calendar in Asparagus page. Also google how to grow and harvest it.
10 Oct 20, Ginger (USA - Zone 9a climate)
I just received 6 asparagus roots, with 4” growth on top. Can I plant them in my enclosed garden area or should I keep them near a window, indoors? It is still warm to hot, in my zone 9 area, of Southern California.
12 Oct 20, (USA - Zone 9a climate)
I assume you mean 6 crowns, a bulb with roots coming from it, looks like a spider. Plant them out but pay attention to watering.
29 Sep 20, Mai (Australia - temperate climate)
I've just purchased yesterday, 4 of the 2 yr crowns from Guilford Garden Centre in Perth. This is my first time growing asparagus so I'm very curious, have lots of questions to ask......Now one of them already has a pencil size spear, can i be greedy_cut that off and eat it? I've potted them in a 60cm deep big pot temporarily while I'm setting up a new raised bed for the asparagus, how tall should i have the raised bed? If i establish them well this year, can i be harvesting small amounts next year? Thanks guys!
20 Oct 20, Ingrid (Australia - temperate climate)
We purchased some 2year old crowns 4 years ago, it was so very tempting to cut some of the bigger spears. But our patience paid off. Now we are able to cut good sized spears every 2-3 days.
10 Oct 20, (Australia - temperate climate)
Hi Mai, Here is an article you might find useful. It has some info on when to harvest
01 Oct 20, Anonymous (Australia - sub-tropical climate)
Here are my suggestions. 1 Pick a spot that has sun all day. 2 Dig a bed that is about 4' x 4' or 1.2m x 1.2m for 4 plants or 1.2m x 1.8m for 6 plants, 2.4m x 1.2m for 8 plants - I would recommend 6-8 plants, about 300mm deep. 3 Put a border (sleepers) around it, either 200mm or 400mm high (2 sleepers). Garden sleepers (hardwood) where I live are 2.4m long x 200mm high x 50mm thick ($20). Fill it up with soil/composted manure/compost and dig it over a couple of times. Buy some rooster booster fertiliser from bunnings and apply about a 2l ice cream container to the soil and mix in. Go on the internet and google how to plant and grow and harvest it. 1st year pick a few of the thicker spears, 2nd year a few more and then 3rd yr you can pick all. In future years a tip, stop or cut back watering end of April, cut all the ferns off end of August, apply a 2l container of rooster booster and 6
07 Oct 20, Mai (Australia - temperate climate)
wow info! Thanks a lot!
Showing 11 - 20 of 442 comments

I purchased some purple asparagus seedlings 1 year ago (Aug 19) Perth WA Planted them out Dec 19. 1 large female bush is still growing spears up to 15mm thick in July 20 and shows no signs of weakening. I have resisted the temptation to eat the spears, but with spring approaching I am wondering if I should prune it or just leave it to the ravages of climate change. Needless to say I am collecting the berries. Michael

- Michael Archer

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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. GardenGrow 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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