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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
  • Seedlings (approx 6cm/3in)
    Seedlings (approx 6cm/3in)

Plant crowns (roots) 20-40cm apart and a few cm (1 inch) deep in well manured soil. The asparagus shoots grow in spring. Harvest the shoots which are bigger than 1-2cm/half-inch in diameter. Leave the rest to grow into the leafy ferns (1.5m/5-6ft tall) which will feed the crowns to give a crop next year. In autumn the ferns will be covered in bright red poisonous berries. Leave the ferns to die down in autumn, then trim off the dead stalks and pile on plenty of rotted manure/compost to give the roots plenty of food to produce new stems in spring.

Harvest by cutting off the stalk, close to the ground. From the third year you can get an additional crop by letting the first lot of ferns grow, then bending down the stalks to break them. A second crop of shoots will grow and can be harvested. Leave subsequent shoots to grow on to ferns. Asparagus does not like continuously wet and warm soil. It grows better where there is a cool or frosty season.

Culinary hints - cooking and eating Asparagus

Steaming is traditional, then coating with melted butter or hollandaise sauce.
Alternatively break in short lengths, and cook quickly in hot oil in a wok and sprinkle with soy sauce or balsamic vinegar.

NOTE: The asparagus berries are poisonous. Only the young shoots are edible.

Your comments and tips

06 Nov 17, ken chee (Australia - temperate climate)
How could I would like to grow ASPARAGUS PURPLE BASTARD. Anyone around Sydney who could supply seedlings or crowns? Any help would be very much appreciated....
14 Nov 17, Naomi (Australia - temperate climate)
Try the diggers club online
07 Nov 17, Mike (Australia - sub-tropical climate)
Try Bunnings or a nursery.
03 Nov 17, (New Zealand - cool/mountain climate)
I am new to planting Asparagus seeds harvested from my garden. I live in the USA in Northeast (Rhode Island) I had a bumper crop of Aspargus this year and have harvested all the red Seeds: When and how should I plant these seeds?
19 Oct 17, Samantha (Australia - temperate climate)
We have just moved to a little old (ish) cottage in Maldon Victoria and to my delight have just discovered asparagus growing in the back yard. It is not in a "garden bed" as such, but obiously once was. Grass has grown as lawn all around it and spears are popping up left right and centre. How do I encourage and look after it at this late stage (mid October)?
19 Oct 17, Mike (Australia - sub-tropical climate)
Lucky you!!! To an area about 1 & 1/2-2' around all the plants and between the plants give it a good watering. Next day pull all the weeds out. If you can, buy some horse or cow manure or compost and place about 3" thick over the top of it all. If the weeds are a real problem over the summer I would suggest during next winter when the asparagus ferns all die down, transplant the crowns into a nice prepared garden bed - then about August Sept each year put a 4-6" layer of aged manure or compost on them.
05 Oct 17, Jacquie (Australia - temperate climate)
Hi, My partner and I have purchased a property in the Adelaide Hills and are keen to find out more about growing asparagus - not sure where to buy seeds etc can somebody point us in the right direction ? Thanks Jacquie
09 Oct 17, Mike (Australia - tropical climate)
Try Bunnings or some nurseries or look on the internet. Buy some crowns (9-12 mths old). Can start from seeds - will take a year longer though and it requires a lot of attention. I had up to 30 seedlings last year and only 6 survived.
08 Oct 17, Darren (Australia - temperate climate)
Planting asparagus from seed will take a lot longer before you get a crop, three years. Go to your local nursery and ask for asparagus crowns, which can then be planted out. This can still take up to 2 years to be productive.
26 Sep 17, Ross McLaren (South Africa - Summer rainfall climate)
hi there what is the best possible way to grow asparagus in KZN. Tunnel, with raised beds? What Fert do I need, how many times do I water them? Want to start a small bunch to see if it will work :)
Showing 1 - 10 of 253 comments

When and how to transplant, is puttting down canning salt good idea

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