Cosmos Sonata Mixed | Tray of 230 Plug Plants
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Cosmos Sonata Mixed | Tray of 230 Plug Plants

Cosmos Sonata is a really popular plant for sunny borders and containers.

Dispatch Week:  
260041 Price:  £42.99

Cosmos Sonata is a really popular plant for sunny borders and containers. Produces large single flowers in a mixture of white, pinks, and carmine above compact, bushy foliage. Also makes a good cut flower. 

You will receive a tray of 230 Premium Quality Professionally Produced Plug Plants. All orders are carefully packed and shipped in our specially designed packaging. Plant your plug plants into our recommended plastic grower cell trays and grow on with cold weather protection, then plant out once the danger of frost has passed.

See the tabs above or click these links for information on: DeliverySize Guide and Advice.

Brand:  Brookside Nursery
Supplied as:  230 Plug Plants
Habit:  Upright
Eventual Height:  70cm (28")
Eventual Spread:  50cm (20")
Position:  Full Sun
Primary Flower Colour:  Mixed
Secondary Flower Colour:  Mix of Pinks, Purples and Whites
Suitable for Hanging Baskets?  No
Suitable for Patio Containers?  Yes
Scented?  Not Scented
Plant Type:  Annual
Botanical name:  Cosmos bipinnatus

Free UK delivery on all orders over £40!

For all orders under £40 in value we make a one off P&P charge of £4.95 per order.

Smaller orders are dispatched via Royal Mail 1st Class, larger orders via Parcelforce 24.

We are the only online plug plants supplier to offer a choice of a specific dispatch week for your order. When placing your order, use the drop down box above to select your required dispatch week. You can also alter dispatch weeks in the shopping basket.

All our plug plants are shipped in specially designed packaging to keep the root system in place and the foliage protected in transit.

For more information about plant deliveries, please click here.

We can also deliver plants to most EU countries. Delivery charges are dependant on the delivery country and start from £19.99 per order.  For more information about international deliveries, please click here.

Size guide - Pack of 230 Plug Plants 

Securely rooted, strong plants in mini-plugs of compost. Will need to be transplanted and grown for a short while before planting out ready to flower. Tender varieties will need protecting from frost. Compost volume around 3cm deep x 2cm square. Foliage height 1.5cm-5cm (depending on variety). Full growing instructions are provided.

General Growing Advice

Using a good quality multi-purpose compost, pot up your plugs into 6 cell trays. Once your plug plants have been potted on and labelled, water them in well and grow on for around 5-6 weeks.  Water once the compost starts to dry out.

If preferred you can pot on the plugs into hanging baskets, flower bags or pots. Add a slow release plant food like Miracle-Gro Slow Release All Purpose Plant Food  to your compost which will give extra nutrients for strong and healthy plant growth.

Keep plants frost free until mid/late May and then harden off before being placed in their final positions when the risk of frost has passed in your area.

Water as necessary giving a liquid feed such as Neudorff Organic Plant Feed as instructed throughout the growing season.

***For packs of 20/40 plug plants gently remove the small plugs from the tray by pushing up from the bottom using a pencil.

Cosmos Specific Advice

Regular deadheading of cosmos will encourage and prolong more blooms. If deadheads remain then the cosmos will self-seed. Do not over fertilise as this will promote more foliage growth rather than more flowers. Pinching out the tips at around 15-20cm will encourage bushier plants.

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Wholesale 'Grower Trays' Discount Structure

We offer generous discounts on our Wholesale Plug Plant trays meaning the more you buy, the more you save:

Number of Trays Percentage Discount
5-10 Trays 5%
11-20 Trays 10%
21-50 Trays 15%
50+ Trays 20%

Your discount will be automatically deducted in the shopping basket.

This discount structure does not apply to sale items in our 'Sale' category.


Please note that dispatch weeks for our large ‘wholesale’ trays are provisional and can be subject to slight change due to plant availability. We will contact you once you have placed your order to confirm your dispatch date(s). 

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Brookside Nursery