Cosmos bipinnatus 'Rubenza'

40 plus 20 FREE plug plants

5 5 1 star 1 star 1 star 1 star 1 star (6 reviews) Write review
11th - 15th May £24.99
available to order from spring 2022
Quantity 1 Plus Minus
Buy Cosmos bipinnatus 'Rubenza' 40 plus 20 FREE plug plants: Posh bedding for borders

  • Position: full sun
  • Soil: moderately fertile, moist, well-drained soil
  • Rate of growth: average
  • Flowering period: June to October
  • Hardiness: half hardy annual

    Each flower emerges from bud a deep, velvety red, but as they age, the colour lightens gradually to a rich rose. Therefore when in full bloom the overall effect is very pretty, displaying all the tonal variations of the flowers. Easy and undemanding annuals that will flower right up until the first frosts if they are dead-headed regularly, their flowers can be added to the posies too.

    Grown in individual plug cells, each plant measures about 5 - 7cm tall (from the base of the root to the top of the plant). They are ideal for keen gardeners who have a greenhouse where the plants can be plants can be grown on until they are ready for planting out in the garden once all chance of frost has passed.

    Please note that as we grow these for especially for you, we need to take full payment when you place your order so as to reserve stock for you. See above for despatch dates for this particular plant. To ensure that your plants arrive in the best possible condition each pack will be despatched individually.

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Eventual height & spread

Eventual height and spread
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Kept my garden looking beautiful all summer


Kept flowering for a long time - very beautiful




Good for cutting or in a border


Sturdy plants ready to grow away well after all risk of frost has passed. V floriferous till first frosts. Lovely colour, works beautifully as a cut flower

Country Granny



Striking display


Lovely deep colour, and they went on flowering until the frost took them. Definitely recommend growing in big containers with good compost, regular feeding and plenty of water. Those I planted out in the garden did significantly less well.


West of Scotland




Put on a fabulous display for 3 months - possibly the most admired plants in my garden all summer.




Easy to grow


An attractive plant that grows easily and isn't too fussy about position. Also self seeds. Deadhead regularly for best results.

Lady gardener



Grown for first time


I bought these Cosmos for the first,time this summer and I was thrilled with them. I grew them in large stone throughout on the terrace and I had good colour from late May till late August when other salvias took over. will repeat them. A particularly delicate shade of dark pink/red.





4.8 6


June Week 1

If you do nothing else...water new plants. Make sure new additions do not suffer during dry spells. Plant up summer containers bedding once the threat of frosts has passed. Feed container plants about six weeks after planting. If it’s a nice day...trim he

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Plant up summer containers

After the last frost date, plant up containers with tender flowering bedding and reliable foliage plants. Line terracotta pots with polythene, taking care not to cover the planting holes, to reduce water loss through the porous sides of the pot.

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Flowers for the cutting garden

At some stage in June, your garden will be a glorious affair full of scent and soft flower. Placing a posy from the garden, close to a family hub like the kitchen table, unites your home and garden as effectively as having a huge picture window. You don’t

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Posh bedding

There is still plenty of time to raise hardier annuals from seeds sown now and these include cosmos, zinnias and marigolds. However it's often easier to opt for ready-grown plugs of these, as well as the more-tender begonias petunias, antirrhinums and ni

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