Mr Fothergill's Cosmos Rubenza Seeds
🏆 Best Garden Centre in the UK in 2018, 2021 & 2025
🚚 Orders dispatched within 24 hours (next day delivery available)
🌼 Our team of experts are on hand 7 days a week
💚 Support a family run, independent business
8 in stock
Mr Fothergill's Cosmos Rubenza Seeds is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Mr Fothergill's Cosmos Rubenza Seeds
Mr Fothergill’s Cosmos Rubenza Seeds – Dark Ruby to Old Rose Summer Blooms
Mr Fothergill’s Cosmos Rubenza Seeds (Cosmos bipinnatus) produce striking dark ruby-red flowers that gradually mature to a soft old rose, giving each plant a unique tonal effect. This half-hardy annual is perfect for borders, containers, and cutting gardens, offering manageable mid-height growth and long-lasting summer colour.
Key Features
- Unique Colour Change – Dark ruby blooms fade to old rose as flowers mature, creating a natural gradient effect.
- Pollinator-Friendly – Nectar-rich flowers attract bees, butterflies, and other beneficial insects.
- Half-Hardy Annual – Flowers the same year as sowing, providing rapid summer colour.
- Ideal for Cutting – Perfect for fresh bouquets or indoor arrangements.
- Mid-Height & Manageable – Grows to 90cm (36in), ideal for borders, containers, or random planting patterns.
- Full Sun Requirement – Thrives in bright, sunny positions for best flowering.
Product Description
Cosmos Rubenza (Cosmos bipinnatus) is a vibrant half-hardy annual that adds drama and elegance to summer gardens. Its dark ruby-red blooms gradually soften to old rose, producing a dynamic, tonal display throughout the flowering season from June to October. Growing to a manageable 90cm (36in), these plants are perfect for borders, containers, or cut flower displays. They are highly attractive to pollinators, supporting garden wildlife while adding continuous summer colour. A Best Buy variety recommended by gardening press and consumer groups, Cosmos Rubenza thrives in full sun and well-drained soil, making it both beautiful and easy to grow.
Specifications
- Brand: Mr Fothergill’s
- Variety: Cosmos Rubenza
- Botanical Name: Cosmos bipinnatus
- Seed Count: Approx. 50 seeds
- Plant Type: Flower Seeds / Half Hardy Annual
- Genus: Annuals / Bedding
- Plant Class: Half Hardy Annual
- Growth Habit: Tall / Mid-Height
- Height: 90cm (36in)
- Flower Colour: Dark Ruby to Old Rose
- Position: Full Sun
- Suitable For: Borders, Containers, Cut Flowers, Pollinator Gardens
- Attractive To: Bees, Butterflies
- Sow Indoors: February–April
- Sow Outdoors: April–May
- Flowering / Harvest Period: June–October
Growing & Care Tips
- Sow seeds indoors before the last frost or directly outdoors after frost risk has passed
- Plant in well-drained soil with full sun exposure
- Water moderately until seedlings are established
- Space plants adequately to allow airflow and prevent flopping
- Deadhead regularly to encourage prolonged flowering
Why Choose These Seeds?
Mr Fothergill’s Cosmos Rubenza is perfect for gardeners who want unique, colour-changing blooms with pollinator appeal. With manageable height, suitability for containers and borders, and long-lasting cut flower potential, these seeds add summer drama, beauty, and versatility to any garden.
About Us
About Us
We are a family run, independent Garden Centre, Farm Shop and Restaurant combined. We are proud to offer the very best gardening, home and outdoor living products alongside delicious, fresh, locally produced food and drink.
Awarded 'Best Garden Centre in the UK in 2018 & 2021 you can rest assured that we offer excellent products, plants and customer service.
Learn more about us and our story on the 'About Us' page.
Delivery
Delivery
Collect your order in-store, have it delivered to your door, or choose a convenient InPost Locker!
We aim to dispatch orders as quickly as possible using trusted couriers.
Your Questions Answered...
What are the delivery options and prices?
We offer Standard (3-5 working days) and Express (1-2 working days) delivery for a small additional charge.
- Postable items (e.g., seed packets, gift cards) - £2.95 via Royal Mail.
- Smaller, lighter items - £4.95 – £6.95.
- Larger, heavier, and fragile items - £9.95 – £19.95.
- Pallet deliveries (e.g., furniture) - from £69.95 (see kerbside pallet delivery details below).
The exact delivery charge is calculated at checkout based on your selected items.
New! Deliver to InPost Locker
Instead of home delivery, choose to collect your parcel from an InPost Locker near you.
- Delivery rates: £3.95 or £4.95 depending on item size.
- How it works: Choose InPost after completing your order. You'll receive a notification when your parcel is ready to collect.
- Collection options: Scan the QR code or open the locker remotely via the InPost app. If collecting from a shop, show your QR code to the staff.
- Collection time: You have 3 days to pick up your parcel. InPost will send a reminder 24 hours before expiry.
- Tracking: Track your parcel via the InPost app or the tracking link in your confirmation email.
Can someone else pick up my parcel?
Yes! Share your QR code or collection code (sent via email) along with your mobile number, and they can collect it for you.
Do I need ID to collect from an InPost Locker?
No, just scan the QR code in the app or your email. For InPost Shop collections, show the QR code to the staff.
Any more questions?
Visit InPost’s [help page](#) for more details or check their blog for tips and updates.
How do I track my delivery?
Once your order is dispatched, you'll receive an email with tracking details.
Who delivers my order?
Depending on size and weight, orders are delivered by Royal Mail, Evri, or Parcelforce. Furniture and large items arrive via kerbside pallet delivery.
What is kerbside pallet delivery?
Large items like furniture are delivered on a pallet using a heavy goods vehicle. The pallet is placed at the nearest safe kerbside location. The driver cannot move it across uneven ground or remove the items from the pallet.
We can arrange a delivery date that suits you. If access for large vehicles is difficult, please let us know in advance.
What should I do if my order arrives damaged?
If your order is damaged in transit, email us a photo and your order number within 24 hours so we can resolve the issue.
Do you deliver to Northern Ireland?
Yes, though some larger or heavier items may incur a surcharge. Unfortunately, we cannot ship plants to Northern Ireland at this time.
Do any UK areas have a delivery surcharge?
Additional delivery charges may apply for:
- Channel Islands
- Northern Ireland
- Scottish Highlands & Islands
- Isle of Man & Isle of Wight
- Scilly Isles
What is the warranty on my purchase?
All products come with a manufacturer’s warranty (typically 12 months unless stated otherwise). Faulty items within the warranty period may be repaired or replaced subject to the manufacturer’s terms.
Still have questions?
Contact us via our enquiry form, call 01497 847055, or email shoponline@oldrailwaylinegc.co.uk.
Returns
Returns
How do I return an item?
If a purchase is no longer required you are able to return the goods within 28 days of delivery for a full refund in accordance with our refunds policy set out in Clause 10 of our Terms & Conditions. We will refund any money received from you using the same method originally used by you to pay for your purchase. Please make sure that you include the sales order or invoice with your return.
When returning items to us, please ensure that any and all original packaging, instructions, tags etc are included as supplied to you. We recommend using a recorded/insured service to return your order. The Old Railway Garden Centre cannot be held responsible for returned items lost or damaged in transit to us.
