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 61°F and 86°F. (Show °C/cm)
  • Space plants: 8 - 16 inches 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

07 Oct 20, Mai (Australia - temperate climate)
wow info! Thanks a lot!
03 Sep 20, Michael Archer (Australia - temperate climate)
a bit hard to stop watering in Perth at this time I might knock it down at the end of summer and try to pick a few late spears then
04 Sep 20, Anonymous (Australia - sub-tropical climate)
Cut back the watering from end of May. If you keep watering and have a warmish winter it keeps growing. The idea is for the plant to put a lot of energy etc back into the crown (from the ferns) mid summer to Autumn. That is what allows the plant to send up spears during Spring. This time of the year you should have the ferns cut off, put 100-150 (?) of compost on top and applied some fertiliser and be watering heaps. At the moment I'm picking 12-15 spears each third day from 4 crowns.
29 Aug 20, Jenni Orr (New Zealand - temperate climate)
Want to order some crowns in Pukekohe. Where to order from?
01 Sep 20, Anonymous (New Zealand - temperate climate)
Google seed selling websites in NZ.
22 Aug 20, Chris McGeough (New Zealand - temperate climate)
Heads are just coming up but are being eaten by something very small that is killing each head off or leaving scars. Put some chook manure on a couple of months ago and wonder if its bugs in that? Any help would be great.
24 Aug 20, Liz (New Zealand - temperate climate)
It might be slugs or snails, try using something to kill or deter them.
24 Aug 20, Anonymous (New Zealand - temperate climate)
Google it - bugs that eat asparagus. Probably have to go out at night to see them. Then look for a spray, organic or chemical. Maybe don't use chook manure, or compost it before putting it on. I don't put compost/manure on until mid-late August.
17 Aug 20, Michael Archer (Australia - temperate climate)
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
19 Aug 20, Anonymous (Australia - temperate climate)
A suggestion, stop watering asparagus at the end of May, let the ferns die off. Then around now to early September, cut all the ferns off at ground level. Scatter some fertiliser on the top of the soil and put 150mm of compost/manures etc on top of that. Start water again.
Showing 11 - 20 of 432 comments

Why a crop this time of year, probably because you have kept watering them. I did that establishing my asparagus the first two years. I'm sub-tropical and I stop watering mine the end of April, just the odd watering, not heavy, we have had very little rain since mid March. I actually cut my ferns yesterday, will not fertilise, compost and water until the end of August. I only eat my asparagus for about 5 weeks last year in the spring. But I cut my ferns off in Jan and had about 3-4 weeks of spears before letting them fern again. If the crown is biggish 9-12

- Anon

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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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