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Growing Asparagus

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

(Best months for growing Asparagus in USA - Zone 5a regions)

S = Plant undercover in seed trays T = Plant out (transplant) seedlings

  • 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

14 Nov 08, Alice (Australia - cool/mountain climate)
I planted seedling asparagus 2 years ago and now have of a 120 cm. wall of ferny top grow. What do I do with it now? A friend suggested I should cut it all down level with ground and cover it with 10cm of stable manure. Does this sound sensible to the experts?
05 Dec 08, Eileen (Australia - cool/mountain climate)
I planted my asparagus during the winter months, they now have ferny tops, what do I do with them now, I planted 2.
07 Dec 08, Chris (Australia - cool/mountain climate)
Eileen (and Alice). Leave the ferns until they die down in winter, then you can clear them away, or just flattern them before topping up the bed with rotted manure and/or compost.
07 Dec 08, Chris (Australia - cool/mountain climate)
Alice, I would only use rotted or composted stable manure, unless you want a fine crop of barley/wheat/grasses/whatever seeds the horse ate. They all germinate beautifully from fresh stable manure.
09 Mar 09, Michele (Australia - tropical climate)
I would like to have a go at growing asparagus here in the tropics. Would seed be best or could I get crowns from somewhere
28 Jul 09, Valerie (New Zealand - temperate climate)
It's only the end of July and my asparagus is already sprouting. Should I pick it or leave it alone? It's in it's third year and I haven't picked any for the last two spring/summers
08 Aug 09, Teash (Australia - temperate climate)
I got an asparagus plant last year at a local farmers market, I put it in the ground and just left it. Well this year I have my first lot of spears.. and they are yummo...asparagus require little maintenance and a whole heap of patience!!
23 Aug 09, Dave (Australia - cool/mountain climate)
Just trying aspar. I use multi-later dig free gardens (Ester Dean Style). proposed Aspar. bed approx 2.4 x 1.8 x.6 deep Q?. How close can I plant crowns for maximum use of this bed? thanks Dave.
05 Sep 09, ~Tully~ (Australia - sub-tropical climate)
If we can grow asparagus in the middle of the NT desert (not an option in your drop-down menu!) anyone can, give it a go. Yum!
21 Oct 09, Lyn (Australia - temperate climate)
Planted asparagus crowns about 3 months ago, thought they were not going to grow at all. Over the past 2 weeks, we now have 3 spears the longest over 8inches high. It grows 1cm or so per day. Loving it, as have never grown this before. This is in the South Australia climate
Showing 11 - 20 of 247 comments

The transplanted ones will depend on how they were treated last year - whether they were left to build up energy reserves for this year. If you had plenty of spears grow into ferns then they should produce this year. Probably also depends how old the old crowns are. Last year while I was growing mine from 12 mth crowns to 24 mths I use to put about half a cup of fert in 9 L of water and feed them each month - only had 3 crowns. I also put manure/compost on in august. I have crowns that are coming up to 3 years old - that is from when seeds were planted - they have been shooting spears for a few weeks now - I have cut them back and manured and watered them. My seedlings which will be 12 mths old in Sept - I have not cut them back yet or put manure on them yet - will probably do that in about two weeks time. I have not watered them for the last month - they are not growing at the moment. As for manure - chicken is the richest in N followed by cow and then horse manure. I read the other day horse is about 1.75% N. Whatever manure you can get and add some fert if you like. We have had only one week of cool weather so far this winter - that is night temps down to 6-8 degrees.

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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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