Asparagus officinalis 'Connover's Colossal'
asparagus 'Connover's Colossal'
'Connover's Colossal' is an upright perennial grown for its edible, bright green spears with purple tips from spring to early summer. Once cropping has stopped tall stems develop with airy, feathery foliage
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Ultimate height1–1.5 metres
Time to ultimate height2–5 years
Ultimate spread0.1–0.5 metres
Colour & scent
- Full sun
South–facing or West–facing
- Native to the UK
- Columnar upright
- Potentially harmful
- The young shoots (spears) are edible when cooked. Wear gloves for picking spears as they may a cause skin allergy. Fruits are harmful if eaten
Asparagus can be evergreen or deciduous perennials or subshrubs, sometimes climbing, with tuberous rootstock. Stems bear both inconspicuous scale-like leaves and larger, leaf-like phylloclades, with small white or pinkish flowers followed by red berries
- Name status
How to grow
Grow in well-drained soil or raised beds. Avoid frost pockets as spears are tender. See Grow Your Own Asparagus guide
Propagate by crowns. Although propagation by seed is possible, it is not advisable as seedlings take longer, and may not be male cultivars which produce better plants
Suggested planting locations and garden types
Cut down foliage in autumn, when yellowed, to soil level
May be susceptible to foot and root rots and violet root rot
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