What will I receive when I order?

You'll receive the item listed on this page, carefully packed to protect it in transit. If it's a live plant, it's supplied as a young, healthy plant ready to pot on or plant out after hardening off.

Are your plants suitable for beginners?

Yes. We choose strong stock and provide clear growing guidance so beginners can get great results. If you're unsure where to start, choose an easy-care variety and follow the basic potting and watering steps.

How quickly do you dispatch orders?

Orders are packed and dispatched as quickly as possible, with live plants prioritised for freshness. Dispatch speed can vary with weather conditions to protect plant quality.

How are live plants packaged for delivery?

Live plants are packed to reduce movement and prevent damage, with protection around the root area and foliage where needed. This helps them arrive in the best condition possible.

What should I do when my plants arrive?

Unpack straight away, check moisture, and place plants somewhere bright and sheltered. If they're young plants, pot them on if needed and harden them off before planting outside.

Can I order more than one item and combine postage?

Yes. Ordering multiple items together is a great way to build a planting scheme and usually works out more efficient than separate orders.

Do you deliver across the UK?

Yes. We ship within the UK. If your area has specific delivery restrictions for live plants, we'll follow the correct requirements.

What happens if something arrives damaged?

Contact us as soon as possible with photos of the packaging and item. We'll put it right quickly and fairly.

What are plug plants?

Plug plants are young plants grown in individual cells, designed to be potted on to grow stronger before planting out. They're a cost-effective way to fill borders, baskets, and beds.

Are plug plants “garden ready” when they arrive?

They're young plants, so they may need potting on and a short period of growing-on. Once roots strengthen and the plant is actively growing, it's ready to plant out after hardening off.

Penstemon ‘Heavenly Blue’ Plug Plants x3 – 5cm Plugs (FREE Tracked P&P)

Penstemon ‘Heavenly Blue’ x 5 Pack – 5cm Plug Plants (FREE P&P)

Tall spikes of blue‑tinged flowers that return reliably year after year — a long‑lived, border‑worthy Penstemon also known as ‘Catherine de la Mare’.

Penstemon ‘Heavenly Blue’ produces elegant blue‑tinged flowers held on tall, upright stems and has proven year‑after‑year reliability in the garden. These 5cm garden‑ready plug plants are ideal for borders, mixed beds, or planted as statement plants in pots. All orders include FREE Royal Mail 48 Tracked delivery in 100% recycled R‑PET packaging, with automatic RM24 upgrades on multi‑packs.

Jumbo Plug:	- Approx 5 cm x 5 cm
Position:	- Full/Part sun
Soil:	- Moist and well-draining soil
Height x Spread:	- 70 cm x 40 cm
Flowering:	- July - October
Hardiness:	- Hardy

Product Description

Tall Blue‑Tinged Spires With Exceptional Reliability

Penstemon ‘Heavenly Blue’ is a hardy perennial producing tall spikes of soft blue‑tinged flowers throughout summer and early autumn. It performs reliably year after year and is a great backbone plant for protected beds, borders and cottage‑garden stylings.

Also Known as ‘Catherine de la Mare’

This variety is cherished for its soft colouring, graceful height and long flowering window, making it a versatile addition to mixed borders or as a standalone plant in a patio pot.

Healthy 5cm Plug Plants — Ready to Grow

These strong plugs can be planted straight out or grown on in pots until you’re ready. Penstemons establish quickly and reward you with a long flowering season.

Eco‑Friendly, Tracked Delivery

All packs are shipped via Royal Mail 48 Tracked in 100% recycled R‑PET protective packaging, designed to keep plants safe in transit while reducing waste.

Postage Upgrades & Larger Orders

FREE RM48 Tracked
Buy 2+ packs → automatic upgrade to Royal Mail 24 Tracked
Bespoke / trade orders available — postage via RM24 or Parcelforce24

Features & Benefits

💙 Elegant blue‑tinged flowers from summer into autumn
🌿 Reliable year‑after‑year performance
🌱 Strong 5cm plugs for quick establishment
🌸 Ideal for borders, cottage gardens, pots and feature planting
🌍 Eco‑friendly R‑PET packaging
✉️ FREE Royal Mail 48 Tracked delivery

Planting & Care

Light: Full sun or light partial shade
Soil: Free‑draining, fertile soil
Ideal for: Borders, mixed plantings, pollinator‑friendly gardens
Hardiness: Semi‑evergreen perennial (protect in very harsh winters)
Flowering: Summer to early autumn

FAQs

Q: Can these be planted straight into the garden?
A: Yes — the 5cm plugs are well‑rooted and ready to plant or pot on.

Q: Do Penstemons overwinter well?
A: Yes, especially in a sheltered spot with well‑draining soil.

Q: How are they packaged for delivery?
A: In secure, recycled R‑PET packs sent via Royal Mail 48 Tracked.

Qty:

£17.95

Tax included. Shipping calculated at checkout.

Why Us

UK GROWN PLANTS

Provided by a Small Family Nursery Business.

DELIVERED WITH CARE

Plants are well Packaged and travel well. Packaging contains Acid Free Paper and Hay with the Plants wrapped in Food Bags to maintain Moisture Levels.

WE CAN HELP YOU GROW

We are always happy to answer any questions you might have regarding a purchase that you have made or any Plants that you are interested in, so please feel free to Contact Us at anytime.
Happy Gardening
Dartana Plants