Passiflora Quadrangularis 'Giant Granadilla' Seeds

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There are dozens of species of passion flower grown, but one that always gets a lot of attention is the Giant Granadilla Passiflora quadrangularis. This is a fast growing vine which can grow over 50ft in a single season. The stems are quadrangular in shape. The beautiful red and purple flowers make it a very popular ornamental and the large, yellowish-green fruits contain many seeds with somewhat acidic arils that are used for juice and ice cream.

Giant Granadilla loves the warm humid tropics, but will not stand flooding. Protect from freezing temperatures. Fruit forms best after self-pollination.


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 £3.99
  • 50 seeds for £6.99
  • Quantities from: £2.99

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    The Passiflora Quadrangularis 'Giant Granadilla' Seeds is shown in Vegetable, Herb & Fruit Seeds > Fruits.

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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.

    Sow in late winter/late spring and late summer/autumn.

    Prior to Sowing, Soak the seeds for 24 hours. Soaking is beneficial in two ways; it can soften a hard seed coat and also leach out any chemical inhibitors in the seed which may prevent germination. 24 hours in water which starts off hand hot is usually sufficient. If soaking for longer the water should be changed daily. Seeds of some species swell up when they are soaked. As each seed swells it should be removed and sown before it has time to dry out and the remainder pricked gently with a pin and returned to soak. Sow seeds in a peaty compost, “just cover” with 6mm (¼ in) of soil as the seeds need light to germinate.

    Germination of Passiflora usually occurs in weeks, occasionally several months.

    If your home is on the low side of 20°C (68°F), your seeds will benefit from bottom heat with an electric soil warming cable kit, or a heating mat. It will stimulate early growth, and help seeds to germinate and cut the germination time by half. Cover the top of the pot with clear plastic so the humidity will remain high.

    When you see some tiny plants starting to sprout, open the top of the pot, a little each day, so that the new seedlings don't go into shock from the humidity being lowered too quickly. Prick out each seedling as it becomes large enough to handle, transplant into 7.5cm (3in) pots. Pot on as required. These plants have very fragile white roots and should be handled with care when potting up.