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

19 Oct 20, SUSIE (Australia - sub-tropical climate)
CAN ASPARAGUS BE PLANTED IN NORTHERN NSW
20 Oct 20, Anonymous (Australia - sub-tropical climate)
There is an article here about growing it. Go to the blue climate zone tab at the top of page, work out your climate zone. Go to Asparagus - the Monthly calendar tells you when to plant.
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 https://planyourpatch.com/how-long-does-it-take-to-grow-asparagus-from-seed/
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!
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.
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
Showing 61 - 70 of 336 comments

I cut my ferns off late winter (August), apply compost and fertilise and water well. I pick all spears until the end of Oct (2 mths) then I let the ferns grow. I water each week. I do another picking in Feb for 3-4 weeks. Then I let grow again. I water until end of Autumn. Then let the ferns die back. Cut off end of winter. I cut my ferns off water really well. apply 100-150mm of compost and fertilise and water well. Spears usually start shooting straight away (early Sept). I live Sub-tropical Australia.

- Anonymous

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.