Crocosmia ‘Carmin Brilliant’ – Fiery Summer Colour with Graceful Arches

The Crocosmia ‘Carmin Brilliant’ is a dazzling perennial known for its fiery blooms and elegant, arching habit. From July to September, sprays of vibrant carmine-red flowers emerge in succession along gently arching stems, bringing a burst of warmth and movement to the garden. These star-shaped flowers rise above sword-like green leaves, creating a striking display that is both colourful and architectural.

Perfect for adding late-summer impact, this variety works beautifully in mixed borders, cottage gardens, and wildlife-friendly plantings. Its vivid flowers attract bees, butterflies, and pollinators, while the upright foliage brings structure even when not in bloom. Hardy, reliable, and easy to grow, ‘Carmin Brilliant’ is a perennial favourite for gardeners who want long-lasting summer colour.

General Information

Crocosmia, sometimes called montbretia, originates from South Africa and is admired for its bold flowers and tough, adaptable nature. The variety ‘Carmin Brilliant’ is especially valued for its intense red blooms and graceful habit.

• Habit: Clump-forming, herbaceous perennial with arching stems.

• Height & spread: Typically grows 60–90cm tall and 40–50cm wide.

• Foliage: Narrow, sword-like green leaves that form a dense base clump.

• Flowers: Star-shaped, carmine-red blooms arranged in sprays along arching stems.

• Flowering season: July to September, offering a long-lasting summer display.

• Position: Thrives in full sun; tolerates light partial shade.

• Soil: Prefers moderately fertile, moist but well-drained soil; does well in loam, sand, or light clay.

• Hardiness: Fully hardy across the UK and Ireland; clumps return year after year.

• Uses: Ideal for mixed borders, cottage-style planting, prairie gardens, or cut flowers.

Its fiery flowers and neat clumps make it a versatile plant for both formal and informal gardens.

Care Guide

Crocosmia ‘Carmin Brilliant’ is an easy-care perennial that thrives with minimal attention once established.

Planting

• When to plant: Plant corms in spring after the risk of frost has passed, or plant container-grown specimens year-round.

• Depth & spacing: Plant corms 8–10cm deep and 10–15cm apart.

• Preparation: Enrich soil with compost before planting; ensure good drainage to prevent rot.

• Grouping: Plant in clumps of 10 or more for the most dramatic display.

Watering & Feeding

• Water well after planting and keep moist during the first growing season.

• Once established, Crocosmia is fairly drought-tolerant but will perform best with regular watering in dry spells.

• Apply a balanced fertiliser in spring and a high-potash feed in midsummer to encourage flowering.

Pruning & Maintenance

• Deadhead faded flowers to encourage more blooms and keep plants tidy.

• Allow foliage to die back naturally after flowering to feed the corms for next year.

• Cut back dead leaves in late autumn or early spring.

• Divide congested clumps every 3–4 years in spring to maintain vigour.

Protection

• Fully hardy, but in very cold regions, mulch clumps in winter for added protection.

• Generally pest- and disease-free, though may be affected by thrips in very dry summers.

Why Choose Crocosmia ‘Carmin Brilliant’?

This stunning perennial offers vibrancy, structure, and resilience in equal measure.

• Fiery flowers: Striking carmine-red blooms brighten gardens in late summer.

• Architectural habit: Graceful arching stems add movement and form.

• Wildlife-friendly: Flowers attract bees, butterflies, and other pollinators.

• Low-maintenance: Hardy, reliable, and easy to grow.

• Versatile: Works well in borders, cottage gardens, prairie planting, or as cut flowers.

The Crocosmia ‘Carmin Brilliant’ is a must-have for gardeners who love bold colour and graceful form. Its long-lasting display, pollinator appeal, and dependable hardiness make it a fantastic choice for creating fiery highlights in the summer garden year after year.

We currently only deliver within the island of Ireland, other countries can be quoted for by contacting [email protected] or via telephone on 06964084
 

Standard Delivery is FREE on orders over €250*

All standard deliveries will be completed within 5-7 working days via Fastway Couriers, any delay to this delivery time, the customer will be notified by One of our staff.

The in-Store delivery charge will vary compared with online, in-store delivery charge is done on a case by case basis. 

* Only mainland Ireland addresses qualify for free delivery.
 

Live Plants Delivery

Our live plants are packed with care and diligence by our staff, our horticulturists review each plant before despatch to ensure quality is maintained.
Live Plant delivery charges are not calculated on weight but on the space required per package to ensure safe delivery, so delivery charges may vary as some plants require more space than others when packed.
All live plants are despatched within 3-5 working days where possible, our couriers aim to deliver within 48 hours of despatch from our Garden Centre to allow the plant to arrive in healthy condition.
 

Click & Collect

Can’t wait for delivery? Why not try our FREE Click & Collect service? Simply make your purchase online and collect it from our store located in Croagh Co. Limerick. Our staff will contact you by phone when your order is ready for collection (Please allow 24 hours minimum). When collecting your item, call the store on 069-64084. We will then load into your car as required. This service is available in-store 9am – 6pm Monday – Saturday (No collections on Sundays)

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