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Growing Asparagus in Victoria

Introducing Asparagus

This delicious perennial vegetable is an asset to any vegetable garden. They take a few years to start producing, but once your asparagus plants are established, they can produce for 2-3 decades.

Classic Mistakes

Don’t be tempted to start harvesting from your plants too early. Follow the harvesting instructions carefully to help your asparagus grow into strong plants that can produce abundantly

Sunlight

Grow in: Full Sun

Asparagus likes full sun, but will appreciate some shade over the hottest part of the afternoon.

Soil Preparation

Asparagus lives for a very long time (around 15-30 years) So, it’s worth taking the time to prepare their bed well. They like rich, well-draining soil. Work plenty of compost and well-rotted manure as well as lime into the soil. Dig a trench approximately 15-20 cm deep.

Sowing Seed

Sow seed: August-December
Sowing depth: Twice the height of the seed

Seeds can be started in spring.

Asparagus can be started from seed. Sow the seeds into seed beds until the third year and then dig up the crowns, separate them and plant as you would for crowns.

Planting

Plant seedlings: June-July

Crowns should be planted while they’re dormant in winter.

Soak the crowns in water for at least an hour before you plant them. Place the crowns gently into the trench with their roots fanned out and cover lightly. Once the shoots appear, keep adding layers of soil until your trench is level with the ground and then apply a good layer of mulch. When you’re done covering the trench in, the crowns should be 15cm-20cm below the surface.

Care

The fern-like plants will die back in winter. Once they are dead, cut them back to make way for the new growth that will burst through in spring. You can use the dead ferns as a mulch on your asparagus bed or add them to your compost heap.

Watering

Keep them well watered while they are active. Especially during the heat of summer when they can dry out quickly.

Feeding

Asparagus grows in the same spot for many years. It needs to be fed well to produce well. The crowns are dormant in the winter, so give the bed a good layer of compost or well-rotted manure before they start growing again in early spring. It’ll also act as a mulch to protect them from the worst cold of winter.

Mulching

Asparagus appreciates a thick layer of mulch. Sugarcane or lucerne are good options.

Harvesting

Harvest: October-November

Spears will start to appear in spring. Use a sharp knife to cut them off as low as possible.

Assuming you've planted crowns:

- In the first year after planting crowns: Harvest only very lightly or not at all.

- In the second year: Harvest for 2 weeks.

- In the fourth year: Harvest for 4 weeks.

- From the sixth year, you can harvest for up to 6 weeks.

If grown from seeds: Start harvesting after 3 years.

What to Plant Now

What to do about Snails and slugs?

Lay down grit, like eggshells or silica sand or create barriers around your plants. Remove any slugs or snails that you see.
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