Growing Asparagus

Aspargus officianalis : Asparagaceae / the asparagus family

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

05 Aug 17, Jo Logan (New Zealand - temperate climate)
On asparagus - I've just purchased one year old crowns (7 in total). What kind of crop could I expect next year? How many spears does each crown produce?
08 Aug 17, Mike (Australia - sub-tropical climate)
I have read so many different things about what to expect. I planted 12 mth old crowns and last year I picked for about 4-5 weeks from 3 plants - I feel I could have picked them for 3 mths. I had massive ferns early this year. I picked about 70-80 spears last year in the 4-5 weeks. You probably have colder weather.
05 Aug 17, Bob reddin (New Zealand - cool/mountain climate)
When and how to transplant, is puttting down canning salt good idea
28 Jul 17, Tony (Australia - temperate climate)
Hi mike as I explained on my last post about transplanting crowns into a new bed, at this stage the once I transplanted are still dormant which I expected it will take I think for next year to get a some spears.The other crowns that we have in the same bed are sprouting through and looking good .By the way I thought asparagus shoot through in spring .Anyway I put lots of horse manure on all of them however I think cow is better .What do you Think? Tony
31 Jul 17, (Australia - tropical climate)
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.
13 Jul 17, Mike (Australia - sub-tropical climate)
I trimmed my asparagus bushes about three weeks ago andI put about 2-3" of compost on them. Ten days ago I put 2-3" of horse manure and another 2" of compost on. In the last week I have had approx. 20 spears from 3 plants.
01 Jul 17, Michael (USA - Zone 5a climate)
Is asparagus perennial or annual
06 Jul 17, John (Australia - temperate climate)
Asparagus is perennial and will bear for around 20 years.
27 Jun 17, Tony (Australia - temperate climate)
I transplanted a few old and new crowns 27/6/17 in Gisborne Vic into a different bed wondering how long before they settle there and was it the wrong time to replant them and will they produce any asparagus this year .Thanks for any comments anyone can post .Tony
28 Jun 17, Mike (Australia - sub-tropical climate)
Tony - a friend of mine has had asparagus in for 4-5 years. He moved them last year and they are doing fine. Asparagus is dormant during the winter months and this is the time to do it. You probably could have waited another month or so but I don't think it will do any harm. Hope you dug the soil up good and put some manure in the garden bed. During July and August put some more manure / compost on top of the garden -- 4-6".
Showing 331 - 340 of 576 comments

Ask a question or post a comment or advice about Asparagus

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put Gardenate in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use Gardenate and subscribe to the free Gardenate planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.