asparagus 'Connover's Colossal'

asparagus crowns

3 crowns £2.49 Email me when in stock
Delivery options
  • Bulb orders £2.99
  • Click & collect FREE

See more info on delivery options

Thick spears on this all-male asparagus make fine eating until midsummer’s day

Val Bourne - Garden Writer

  • Position: full sun
  • Soil: any moderately, fertile soil
  • Rate of growth: average
  • Hardiness: fully hardy

    An excellent variety with bright green spears and deep purple tips that produces an exceptionally high yield. The crowns are best planted between March and May, and though a few spears can be cut the following year, it is best left for two years so that it can grow into a strong plant. Connover's Colossal has been awarded an Award of Garden Merit by The Royal Horticultural Society.

  • Garden care: Your asparagus will arrive as bare-root crowns and should be unpacked and planted as soon as possible. Traditionally Asparagus are planted in spring, but the crowns can be planted at any point from autumn to spring. They need a sunny spot, shelter from strong winds and well-prepared soil that ideally has had lots of manure or compost added in the previous autumn. Good drainage is important too, so if your soil is heavy and wet, it would be advisable to grow them in a raised bed.

    Prepare the bed well (ideally well before planting) by removing all the weeds and digging in lots of well-rotted manure or composted organic matter. When planting, dig a trench approximately 30cm wide and 20cm deep and work a little more organic matter into the base of the trench. Using the excavated soil, create a 10cm tall, arched ridge down the length of the trench and sit the crowns on top. Allow 30-45cm between each plant. Spread the roots out to form a star-shape and cover them with the remaining soil, leaving the tops of the crowns just visible. Subsequent rows should be at 45cm intervals with staggered planting. Immediately after planting, water thoroughly and mulch with a generous layer of composted organic matter. During the growing season keep them well fed with a dressing of general purpose fertiliser and make sure the bed stays free of weeds. The first spears will appear soon after planting, but it is important that these are not cut, but allowed to develop into feathery stems throughout the summer. These can be cut back to just above ground level after they have started to die back in autumn. Before the new spears appear in subsequent years, make a ridge of soil over each row and apply a dressing of general purpose fertiliser. If you can, try to resist harvesting the spears, which appear in the second year too, as the plant should be left to develop a robust crownbefore you begin cutting the spears in their third year.

Asparagus knife / perennial cutter

Asparagus knife / perennial cutter

Cut spears cleanly below soil level

£17.99 Buy

Strawberry 'Honeoye'

strawberry - early season fruiting

Fruiting 4 - 6 days earlier than Elsanta.

£14.99 Buy

rhubarb 'Champagne'

rhubarb Champagne crowns

Sweet tasting, scarlet stems of rhubarb

£3.99 Buy

asparagus 'Pacific Purple'

asparagus Pacific Purple crowns

Unusual purple spears

£2.99 Buy


by PowerReviews
Crocusasparagus 'Connover's Colossal'

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top


I would recommend this product

By Anne

from Redland, Bristol

Verified Buyer


  • Hardy
  • These Asparag


    Best Uses

    • Outdoors

    Comments about asparagus 'Connover's Colossal':

    These asparagus were recommended by my neighbour on the allotment because they do well in clay soil. Now the soil needs a lot of manure and compost.

    • Your Gardening Experience:
    • Professional

    Displaying review 1

    Back to top


    Buying vegetable plants

    If you just want to grow a few vegetables or have suffered losses with early sowings, buying plants is a great way to play catch-up. Buying plants also allows you to grow vegetables if you do not have the facilities to raise them from seed yourself or whe

    Read full article