Phlox '21st Century Blue'

Luscious, velvety indigo purple annual phlox which was still in flower in my greenhouse on Christmas day last year. Incredibly hard to beat. More
15 seeds 020122 £4.00 Now £2.80 In stock

Or buy this as part of our Purple Pot Collection.

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Luscious, velvety indigo purple annual phlox which was still in flower in my greenhouse on Christmas day last year. Incredibly hard to beat.

Genus Phlox
Variety 21st Century Blue F1
Type Half-hardy Annual
Border Position Front
Soil Type Fertile, Neutral
Scent Unscented
Site Full Sun, Part Shade
Moisture Moist but Well-drained
Height 25cm (10in)
Spacing 20-25cm (8-10in)
Sowing, Seeds, Planting March-April
Care Tips Deadhead to prolong flowering. Phlox grow well indoors or in shady positions. This is an ideal plant for a container pot. Keep the soil moist.
Flowering July - first frosts, or 10-12 weeks after sowing.
Vase Life These should last up to a week in water.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest

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Phlox '21st Century Blue' reviews

* * * * * Average based on 2 reviews
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Phlox '21st Century Blue'

* * * * *

Reviewed 3rd August 2014 by Andrew Blount

Didn't find it easy to germinate, and the few precious seedlings were irresistible to snails. But the sole survivor is an absolute star among the patio pots: will certainly have another go next year.


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Reviewed 12th July 2014 by Gill

These are the most amazing bluey/purpley colour you've ever seen and are brilliantly short so they can populate the tricky area at the front of the border. Would recommend to anyone who is planning a blue border as they really will astound.

Sadly, the plugs I got were a bit broken on arrival as they are quite brittle plants. However they'd started to rally and looked like they were going to fulfill their potential when they then got snaffled by (we think) a mouse or other rodent. :o( However, the ones I grew from seed were healthy & strong so withstood the worst of the mousey attentions.

Would therefore personally recommend growing them yourself if you have the facility rather than getting plugs.