Phlox Drummondii 'Grandiflora Tall Mixed' Seeds


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Phlox drummondii (commonly annual phlox or Drummond's phlox) is a flowering plant in the genus Phlox of the family Polemoniaceae. Native to Texas, it is also widely distributed in the southeastern United States, especially along public highways. P. drummondii is often used as an ornamental plant.The flowers have a wide range of colours "from white and cream through pinks, lilacs, roses, purples and reds, to almost black".

It is an annual, growing from seed each year. The branches have sharp, pointed, lengthy, ciliated leaves with rounded flowers. The flowers are single or double, with lightly scented, flat, star-shaped petals. The flowers mature to 2.5 cm (1 in) in diameter. It tolerates cold weather well, but requires plentiful watering and dislikes drought, wind and heat.

Phlox drummondii is named after Scottish botanist Thomas Drummond, who sent it and a variety of other plant samples back to Britain following his 1833–1835 expedition to Texas. 

Pretty Wild Seeds are registered with the Department for Environment, Food & Rural Affairs (DEFRA) under number 7529, so you can have confidence in both our products and advice. Although our products are listed in weights and acres, we can supply in additional quantities upon enquiry so if you need a larger supply, please don't hesitate to give us a call.

  • 5g for £3.50
  • 10g for £4.99
  • 25g for £8.99
  • 50g for £12.99
  • 100g for £19.99
  • 250g for £39.99
  • 500g for £74.99
  • 1Kg for £140.99
  • 2Kg for £250.99
  • Quantities from: £3.50




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    The Phlox Drummondii 'Grandiflora Tall Mixed' Seeds is shown in Flower Seeds > Annuals Seed.

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    We happily accept returns within 14 days from date of delivery. All returns must be received in the same condition and packaging we sent them. Postage charges will not be refunded on unwanted products.

    You are solely responsible for ensuring the goods are returned to us. We will not be liable for returns that are lost in the post or lost for any other reason. If a product arrives damaged we will advise the customer how to return the item with all return costs covered by us.  Replacements & refunds will be dispatched / issued on receipt of the returned items only.

    Begin the phlox seed-starting process approximately eight weeks before the last frost date in your area.

    Select a container to start your seeds. Choose a seed-raising tray with drainage holes in the bottom. If you are using empty yogurt cups or the bottom part of an empty milk carton, manually make holes in the bottom. Wash your seed-raising container. Add 1 part chlorine bleach to 9 parts water and mix the liquids together. Soak the container in the mixture for five minutes and set it aside to air-dry.

    Fill the container with moist potting soil to within 3/4 inch of the top. Lightly press down on the soil with your fingers so it sits firmly in the container. Sow the seeds. Place the seeds on the soil with a 1-inch distance between them. Sprinkle soil over the seeds. Aim for a planting depth of 1/8 inch.

    Moisten the top layer of soil with warm water. Use a spray bottle to moisten the soil — this will keep the seeds intact and won't rinse them away. Cover the container with a clear plastic bag to help the soil retain moisture. Seal the bag with an elastic band. Keep the plastic approximately 1 inch above the soil surface. Stick a plant name tag in the soil to help hold the plastic up.

    Place the container in a dark, warm area of the house. Phlox seeds need a temperature of 65 F to germinate. Use a space heater for additional heat, or place a heating pad under the seed-raising container.

    Wait for the seeds to germinate. This can take anywhere from five to 10 days. Check the soil moisture regularly throughout the germinating period. Aim to keep the soil moist at all times. Relocate the container to a bright area of the house. Remove the plastic from the container once the seeds start germinating. Place the container in a sunny window to expose the seedlings to at least 12 hours of light. Continue moistening the soil as needed.

    Place the container in a dark, warm area of the house. Phlox seeds need a temperature of 65 F to germinate. Use a space heater for additional heat, or place a heating pad under the seed-raising container