Common Knapweed
Common Knapweed
Price comparison:
£3.49 – £19.99
From 7 UK retailers
Common Knapweed is a herbaceous perennial.
Sun
☀️ Full Sun
Water
💧💧 Moderate
Hardiness
🌡️ H5 (Hardy -10°C)
Size
📏 60cm tall × 45cm wide
Flowers
🌸 jun,jul,aug
Wildlife
🐝 Pollinator-friendly
Compare Prices
Prices from 7 retailers across 2 sizes
Prices shown are for different pot sizes — compare within size groups for accurate savings
Prices last checked: 7 May 2026
Prices exclude delivery. Check retailer for final price.
Retailers shown in order of price — lowest first within each size group.
| Hillier £5.99 standard delivery | £3.49 | bulb | View at HillierOpens product page · Affiliate info |
| Farmer Gracy Flat rate per order. Free over £50. Ships from Netherlands | £4.74 | bare root | View at Farmer GracyOpens product page · Affiliate info |
| Thompson & Morgan £6.99 for plants, £2.99 seeds only. Free over £60 | £8.99 | bare root | View at Thompson & MorganOpens product page · Affiliate info |
| Suttons £6.99 for plants, £2.99 seeds only, £7.99 mixed | £19.99 | bare root | View at SuttonsOpens product page · Affiliate info |
| Van Meuwen £5.99 standard delivery | £19.99 | bare root | View at Van MeuwenOpens product page · Affiliate info |
Farmer Gracy
Flat rate per order. Free over £50. Ships from Netherlands
Size: bare root
Thompson & Morgan
£6.99 for plants, £2.99 seeds only. Free over £60
Size: bare root
Suttons
£6.99 for plants, £2.99 seeds only, £7.99 mixed
Size: bare root
Van Meuwen
£5.99 standard delivery
Size: bare root
| Crocus £5.99 flat rate per order | £7.99 | Check retailer for size | View at CrocusOpens product page · Affiliate info |
| Primrose Standard delivery from £4.99 | £7.99 | Check retailer for size | View at PrimroseOpens product page · Affiliate info |
Crocus
£5.99 flat rate per order
Size: Check retailer for size
Primrose
Standard delivery from £4.99
Size: Check retailer for size
Prices shown exclude delivery. Delivery charges vary by retailer — see individual listings for details.
Prices may vary. Click through to the retailer for current pricing.
Prices last checked: 7 May 2026
We may earn commission from purchases made through our links. (What does this mean?)
Plant Information
About this plant
Common Knapweed is a herbaceous perennial.
Latin Name
Common Knapweed
Family
Hardiness Zone
H5
Care Level
moderate
Sun Exposure
full-sun
Water Needs
moderate
Flowering Season
jun,jul,aug
Mature Height
60cm
Frequently Asked Questions
How much does Common Knapweed cost in the UK?
Common Knapweed prices in the UK range from £3.49 to £19.99 depending on pot size and retailer. The cheapest price is currently at Hillier at £3.49. Prices are checked nightly across 7 UK nurseries.
Where can I buy Common Knapweed online in the UK?
You can buy Common Knapweed from 7 UK nurseries including Hillier, Farmer Gracy, Thompson & Morgan. ComparePlants.uk compares prices across all of them so you can find the best deal.
What is the scientific name for Common Knapweed?
The scientific name for Common Knapweed is Common Knapweed.
Similar Plants
