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

20 Nov 18, Mike (Australia - sub-tropical climate)
Sorry I had that wrong. I was thinking non compatible plants. Companion planting would be fairly close taking into consideration what area both plant varieties need to produce a decent crop. Like if you were growing beans you would grow marigolds (I don't know if they are companion plants) about 500-600mm away. You don't want one crop over growing the other crop. Generally people plant things too close together - me included.
18 Nov 18, Mike (Australia - sub-tropical climate)
2-3 meters.
11 Oct 18, Robert Koch (New Zealand - cool/mountain climate)
In north central Indiana, USA, I usually trim them back after the first frost, and add mulch through the winter. Is there anything else I can do to enhance my crop next year? Bob Koch
12 Oct 18, Mike (Australia - sub-tropical climate)
I have been growing for 3 years and done a bit of research. I don't have frosts. August is the end of winter here. Temps start rising from 6-10 to 12-15 by end Sept at night. Days go from 20-25 to 24-28. I cut mine 1st week of Aug and apply compost and horse manure. The manure is new but I'm going to try and decompose it before hand next year. I also apply some fertiliser once it starts to shoot spears. 3-4 teaspoons to 9l of water.
28 Aug 18, JENNIFER KELLY (Australia - sub-tropical climate)
I buy my asparagus crowns from Green Harvest who are located in Queensland and sell their products, seeds and edible plants by mail order or if you live near them you can buy in person. They are an organic plant seller.
16 Aug 18, Sofoa (Australia - temperate climate)
Hi, I planted an asparagus plant last year (2017) in July. Cut back the ferns in August this year (2018) and topped with compost. There are a few spears that have come through now. What should I do with them? Should I cut them back or just leave them? Thanks
19 Aug 18, Mike (Australia - sub-tropical climate)
Read up on the internet.
18 Aug 18, Daniel (Australia - temperate climate)
I’m in Melbourne outer east, I have 6 asparagus plants from one and two years old. Only one of the newer plants has spears coming up from about 2 weeks ago. At this stage I’m leaving them to get stronger.
20 Aug 18, Mike (Australia - sub-tropical climate)
From seed to a crown 1.5 to 2
22 Aug 18, Mike (Australia - arid climate)
I will try again. Plant seed - one year old - a crown 1.5 - 2 inches. Two years old a few spears - pick a few thicker than a pencil - leave the one thinner than a pencil. Three years old you have a reasonable crop.
Showing 131 - 140 of 336 comments

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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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