Eryngium ‘Pen Blue’

Eryngium ‘Pen Blue’ is a striking, architectural perennial known for its spiky, metallic-blue flower heads surrounded by steely blue bracts. Blooming from mid to late summer, it adds bold texture and colour to sunny borders, gravel gardens, and coastal planting schemes. Its upright stems are perfect for cutting and drying, making it a favourite for floral arrangements. Drought-tolerant and easy to grow, this hardy variety thrives in full sun and well-drained soil. Loved by bees and other pollinators, ‘Pen Blue’ is an excellent choice for low-maintenance and wildlife-friendly gardens.

16 in stock

£7.50

Ready for dispatch

Just a reminder: To keep our plants safe in the post, we require a minimum order of 3 plants (any mix) and multiples of 3 thereafter. See our Terms and shipping FAQs below info for more details.

Position	full sun – partial shade
Flowering Colour	blue
Flowering Period	July – October
Hardiness	hardy perennial
Height	60cm
Spread	40cm
Pot Size	1 litre pot

FAQs

Minimum Order: To ensure safe transit, we have a minimum order of 3 individual plants (any combination).

Multiples of 3: Please continue to order in multiples of 3 thereafter (e.g., 6, 9, 12). This allows us to use our specially designed, secure packaging.

Free Delivery: Enjoy Free Delivery on all plant orders over £60.

UK-Wide Shipping: £8.00 for orders under £60. We use Royal Mail Tracked 24; you will receive a tracking link to manage your delivery.

Local Delivery: £2.00 for orders under £60. This applies to postcodes: LA7, LA8, LA9, LA11, and LA23.

Free Delivery: Enjoy Free Delivery on all plant orders over £60.

Safe Transit: Every plant is individually caned, secured, and housed in bespoke boxes to ensure they arrive in perfect condition.

Ready-to-Go Plants: We aim to dispatch within 1-3 working days. During Flower Shows, please allow up to 7 working days. Check our Events Page for show dates.

Pre-Orders: Plants still in their growing phase are available on a pre-order basis. These typically ship from April once the root systems are established. You will receive an email the moment they are on their way.

Free Collection: You can choose to collect your order for free from any of the markets, fairs, or RHS Flower Shows we attend.

How it Works: Simply select the “Collection” option at checkout and choose your preferred event from the list.

Wreath Workshops: There is no delivery charge when purchasing workshop tickets.

Wreaths & Kits: No minimum order applies to Christmas items. You can select your preferred delivery week at checkout.

Seasonal Rates: Local (£2) and UK-wide (£8) rates apply as per our standard plant delivery.