Petunia Grandiflora Diamond Mixed Pelleted Seeds


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Petunia Grandiflora is a traditional summer bedding favourite, given a new lease of life by the modern fashion for patio pots and hanging baskets. It forms tight little bushes around a foot high, with deep green sticky leaves, covered in large floppy trumpet flowers throughout the summer. While these used to be mainly single flowers in deep velvety single colours or stripes, new varieties are often in lighter colours with veined throats or with frilly double flowers.

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.

  • 10 seeds for £2.99
  • 20 seeds for £4.99
  • 100 seeds for £18.99

    • Quantities from: £3.99




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    The Petunia Grandiflora Diamond Mixed Pelleted Seeds is shown in Flower Seeds > Annual Seeds.

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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.

    Germination; Sow indoors Feb-Apr. Surface sow onto moist, well-drained seed compost. Just cover seed with a sprinkling of soil. Place in a propagator or seal in a plastic bag to maintain humidity. Ideal temp. 20-25°C. Germination takes 2-3 weeks approx. Transplant seedlings when large enough to handle to 8cm pots and grow on. Acclimatise and plant out after danger of frost has passed.

    Growing; Prefers a rich, fertile, moist but well-drained soil in full sun. Added compost, manure or leaf compost will only improve the soil. A potting soil is ideal for container grown Petunias. Offer a sheltered situation away from drying winds. Water 1-2 times per week, allowing the top 5cm of soil to dry out between waterings. Water deeply, allowing the top 20cm of soil to become wet at each watering. a soluble fertiliser can be used every 2-3 weeks

    Cultivation; Deadhead regularly to prolong the flowering window. If the plant is not deadheaded flowering may cease. Propagate by seed.