Phlox 'Cool Water'
Phlox 'Cool Water'
Phlox 'Cool Water'

Phlox 'Cool Water'

Phlox 'Cool Water'

1 bare root — £4.95

Spring planting season is currently closed 
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Delivery schedule

Orders placed until 29 February 2025
You can expect your order in February/March 2025

Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025

Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days

Available for (pre)ordering again in December
Free delivery on UK orders over £50
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Shipping to the UK

UK orders over £50
Free shipping

UK orders under £50
£4.99

Northern Ireland orders under £50
£5.99

More info

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All deliveries are carbon neutral
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Carbon neutral delivery

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— Ship carbon neutral;
— Remove atmospheric carbon;
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— Invest in reforestation;
— Invest in soil carbon storage.

How? Every time we ship an order, Shopify Planet automatically calculates our shipping emissions, and ensures high-quality carbon removal to neutralise our shipping footprint. Learn more

Description

Chill out in summer among Phlox 'Cool Water's sweet array of fragrant pink and white blooms. Plant this dreamy phlox in groups or drifts in borders and look forward to a gentle and relaxing display which will return every year, establishing over time to eventually form a dense clump. Each year this hardy perennial will produce more flowering stems, each one topped with generous flower clusters between July and September. Take a good look at those blooms of Phlox 'Cool Water' and notice their watercolour effect, with dense areas of colour which seems to bleed from one flower into those around it but in a more diluted shade, like the entire cluster is blotted with pink paint.

A display of these is as calming as drifting along a gentle stream! Combine Phlox 'Cool Water' with pastel shades or waves of deep purple, vibrant pink and sparkling white plants to help it make even more of a splash. For best results, start your phlox plant in a temporary pot and grow it on outdoors for a few months before planting it out into a border. This helps it to establish a stronger root system in easy conditions before heading into garden soil, which can be more challenging. Phlox paniculata 'Cool Water' prefers a sunny or partially shaded site in a moist, but free-draining soil. Growing to around 1m tall, it’s sure to make a fabulous focal point.  

Key features

  • Good for cutting

  • Comes back every year

  • Fragrant

  • Attractive to wildlife

  • Loved by pollinators

  • In peat-free compost

  • Low maintenance

  • Fully hardy

  • Rodent resistant

Specs & details

  • Botanical name

    Phlox paniculata 'Cool Water'

  • Flower colour

    Pastel pink

  • Plant size

    1

  • Established height

    50-70cm

  • Established spread

    30-50cm

  • Plant spacing

    9 plants per m2

  • Leaf colour

    Green

  • Habit

    Clump-forming
    Upright

  • Life cycle

    Perennial

  • Hardiness

    Fully hardy

  • Years to establish

    2-3 years

  • Sunlight

    Full sun
    Partial shade

  • Position

    Sheltered

  • Suitable for

    Large containers
    Borders
    Wildlife gardens
    Cottage gardens
    Low maintenance gardens
    Cut flower gardens

  • Soil acidity

    Any

  • Soil moisture

    Free draining

  • Soil type

    Loam
    Clay
    Stony
    Multipurpose compost
    Loam-based compost

  • Growing skill

    Easy to grow

  • Scented

    Yes

  • Pollinator-friendly

    Yes

  • Mouse resistant

    Yes

  • Rabbit resistant

    No

  • Deer resistant

    Yes

  • Toxicity

    No report

Plant calendar

JanFebMarAprMayJuneJulyAugSepOctNovDec
  • Planting
  • Flowering

Useful information

    • Soak the Phlox 'Cool Water' roots in water for 3-6 hours prior to planting

    • Plant your bare roots into temporary pots with a multipurpose compost in spring and grow-on in a sheltered spot outdoors

    • Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed. Some varieties are a length of root which should be planted lengthways and shallowly (1-2cm deep).

    • Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.

    Read all planting & care instructions

  • Orders placed until 29 February 2025
    You can expect your order in February/March 2025

    Orders placed 1 March - 15 April 2025
    You can expect your order in March/April 2025

    Orders placed 16 April - 15 May 2025
    You can expect your order within 10 business days

Perennials in 1 minute

The beauty of perennial plants doesn’t just lie in their long-lasting flowers and sturdy, resilient nature, but it’s their sheer determination to keep on coming back stronger every year —in year one they’re good, but in future years they’re even better!

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