Asparagus tips

How to plant and grow asparagus

Grow a tasty crop of delicious asparagus – we show you how.

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
To do
To do

Do not To do in January

Do not To do in February

Do To do in March

Do To do in April

Do To do in May

Do not To do in June

Do not To do in July

Do not To do in August

Do To do in September

Do To do in October

Do To do in November

Do not To do in December

The taste of fresh asparagus in May is worth waiting for. A perennial crop, established asparagus plants will provide an annual crop of tasty spears for up to 20 years.

Choose the spot you will grow your asparagus carefully. Asparagus needs lots of space to grow and thrives in sheltered, sunny sites with well-drained soil. Avoid growing asparagus in shady spots, heavy clay soil or containers.

More crop content:

Discover how to grow a delicious crop of sweet and tender asparagus spears, in this practical guide.


You Will Need

  • Asparagus crowns (normally one year old)
  • Fork or spade
  • Fertiliser granules
  • Organic matter (e.g. well-rotted manure)

Total time:

Step 1

Prepare the soil by thoroughly digging it over, removing weeds and mixing in organic matter such as well-rotted manure. A week before planting, scatter general fertiliser granules over the area and fork in, then rake the ground level.

Digging over and mounding up the soil
Digging over and mounding up the soil

Step 2

Dig a trench, 30cm wide by 20cm deep, and part fill with soil down its length to make a mound 10cm high. Take the asparagus crowns and sit them 30cm apart on top of the mound, spreading the roots on either side. Cover the crowns with 5cm of soil. As the plants grow, cover them with more soil, aiming to eventually fill the trench.

Placing the asparagus crowns
Placing the asparagus crowns

Step 3

Keep newly planted crowns well watered until established and ensure the area is kept weed free to prevent competition for light and nutrients. Avoid harvesting asparagus spears for two years after planting, as this will weaken the plants and lead to smaller harvests in the long term. Instead, let the crowns develop ferny foliage, enabling them to photosynthesise and grow into healthy, strong plants.

Newly emerged asparagus foliage
Newly emerged asparagus foliage

Step 4

Asparagus is ready to harvest two years after planting one-year-old crowns. Harvest spears when they reach 12cm in length, cutting them off the crowns beneath the soil with a serrated knife. Stop harvesting in mid-June to allow the plant to build up energy for the following year.

How to harvest asparagus
How to harvest asparagus

Asparagus varieties to grow

  • ‘Pacific 2000’: a vigorous, heavy cropper with delicious flavour
  • ‘Ariane’: large yields of tasty, purple-tipped spears
  • ‘Connover’s Colossal’: a reliable heritage variety with exceptionally large yields
  • ‘Crimson Pacific’: a newer, purple-speared variety with sweet flavour
  • ‘Jersey Knight’: very heavy cropper with good disease resistance