Greater Knapweed
Greater Knapweed
Price comparison:
£2.99
From 1 UK retailer
Reaching around 75cm, Greater Knapweed is a fully hardy hardy perennial flowering from June to August. Fully hardy throughout the UK. A reliable choice for pollinator-friendly gardens.
Sun
☀️ Full Sun
Water
💧💧 Moderate
Hardiness
🌡️ H7 (Fully Hardy)
Size
📏 75cm tall × 45cm wide
Flowers
🌸 jun,jul,aug
Wildlife
🐝 Major pollinator plant
Compare Prices
Prices from 1 retailer
Prices last checked: 28 Aug 2026
Prices exclude delivery. Check retailer for final price.
Retailers shown in order of price — lowest first within each size group.
| Retailer | Price | Pot Size | Action |
|---|---|---|---|
| Primrose Standard delivery from £4.99 | £2.99Out of stock | Check retailer for size | View at PrimroseOpens product page · Affiliate info |
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: 28 Aug 2026
We may earn commission from purchases made through our links. (What does this mean?)
The month's biggest price drops across UK nurseries
One email a month. The plants that got cheaper, and where. Unsubscribe anytime.
We only email you price drops and seasonal savings. No spam, ever.
Plant Information
About this plant
Reaching around 75cm, Greater Knapweed is a fully hardy hardy perennial flowering from June to August. Fully hardy throughout the UK. A reliable choice for pollinator-friendly gardens.
Latin Name
Greater Knapweed
Family
Hardiness Zone
H7
Care Level
moderate
Sun Exposure
full-sun
Water Needs
moderate
Flowering Season
jun,jul,aug
Mature Height
75cm
Frequently Asked Questions
How much does Greater Knapweed cost in the UK?
Greater Knapweed prices in the UK range from £2.99 to £2.99 depending on pot size and retailer. The cheapest price is currently at Primrose at £2.99. Prices are checked nightly across 1 UK nurseries.
Where can I buy Greater Knapweed online in the UK?
You can buy Greater Knapweed from 1 UK nurseries including Primrose. ComparePlants.uk compares prices across all of them so you can find the best deal.
What is the scientific name for Greater Knapweed?
The scientific name for Greater Knapweed is Greater Knapweed.
Related reading
Best Plants for Late-Summer Colour
Give your garden a burst of energy when the rest of the world seems to be winding down, with these vibrant and hardy plants for late-summer colour.
Read the guide →Best Plants for a Long Summer Display
For a summer border that keeps on giving, focus on plants like salvia, geranium, verbena, and echinacea, which flower for months and demand little fuss.
Read the guide →How to Support Wildlife in August
In August, supporting garden wildlife in the UK means providing nectar-rich flowers for pollinators, leaving seed heads for birds, and making your garden a welcome haven for hedgehogs and amphibians.
Read the guide →Similar Plants
